|
Sponsored Links (Register now to hide all advertisements) |
|
|
Thread Tools | Display Modes |
03-28-2024, 05:46 PM | #1 |
Senior Member
Join Date: Feb 2022
Posts: 119
|
Magneto and belts
I think I might made a misstake with my set-up on wateter pump belt and a magneto.
Block is 59BA. Generator is a 37 on a PM intake. Crank pulley, dont know but I think seller said it was a dual now cutted and will work to generator. Waterpums its just mock-up and pulley is rather tight but I’m not shore if its 59BA or 8AB. Cam cover is 8AB so magnet is a early Scintilla but lower part is for the 8AB. I had the idea to get a 3-bolt cam cover and angle adapter but I realise it would be very hard on both short and the longer adapter and a fan ( ex 32 ) no matter of angle on magneto ( did not like electrical fan ) I did try to seek on Hamb ’wanted’ on both angle adapter and a magnto but not much calls ( junk ) or Very expensiveeven tuff shape. So one day I came over the magneto for a resonable price and a nice tag but it was foot for a 8AB. But magneto was burned so Cirello in LA has now fixed it, so with a NOS cap, NOS pointers, cam cover and all car time ( cost ) and freights, repairs its now a expensive unit. I guess way over 2K in it. But I mock it upp fast here and where belt is there the magneto body. It must be impossible with this set-up of pulley ( or ) ? I thought this was the ’easy’ way, not as cool as a angle drive. Hard to get pictures but here is the set-up. Ideas how to solve this. Last edited by 3W Hank; 03-29-2024 at 04:01 PM. |
03-28-2024, 06:10 PM | #2 |
Senior Member
Join Date: May 2015
Posts: 8,183
|
Re: Magneto and bets
__________________
The only thing nice about being imperfect is the joy it brings to others.... "Silver rings, your butt! Them's washers!" "We shot our way out of that town for a dollar's worth of steel holes!" - from 'The Wild Bunch' - 1969 https://www.youtube.com/watch?v=7NReUd2_0u0 |
Sponsored Links (Register now to hide all advertisements) |
|
03-28-2024, 06:44 PM | #3 |
Senior Member
Join Date: Sep 2021
Location: summerton, sc
Posts: 353
|
Re: Magneto and bets
a front view would help
|
03-28-2024, 08:33 PM | #4 |
Senior Member
Join Date: Dec 2010
Location: East Coast in CT
Posts: 1,531
|
Re: Magneto and bets
You need to use 8BA style water pumps and crank pulley when your using that type of front cover. Use Ford flathead truck F-1 water pumps their mounts will match the early water pumps you have in the photo.
Ronnieroadster
__________________
I use the F word a lot no not that word these words Flathead , Focus and Finish. "Life Member of the Bonneville 200 MPH Club using a Ford Flathead block" Owner , Builder, Driver of the First Ford Flathead bodied roadster to run 200 MPH Record July 13, 2018 LTA timing association 200.921 in one and a half miles burning gasoline. First ever gas burning Ford flathead powered roadster to run 200 MPH at Bonneville Salt Flats setting the record August 7th 2021 at 205.744 MPH |
03-28-2024, 08:36 PM | #5 |
Senior Member
Join Date: Jan 2011
Location: Central Ohio
Posts: 5,073
|
Re: Magneto and bets
The problem is you can't run a late distributor/magneto off the timing cover and still run the early 37-48 water pumps and crank pulley. When they moved the distributor to the side in 49 - 53 they also changed the crank pulley and the water pumps (along with the timing cover cam/crank gears, etc). The later water pumps put the belts further away from the block - such that there is room for the belt to go by the distributor. You could make the front of the motor "act like a 49-53 - with the later crank pulley, water pumps, etc.. That is what Ronnie is talking about . . . but that brings in another whole set of issues (depending on the frame/year you're putting this into).
Also, you have to think about your generator and fan - your setup will not work with the belts being moved further forward (using the late F1 water pumps) - so there is another problem. So, if you're putting all of this in a stock 32 frame, you just created a big problem --> the crankshaft pulley now wants to be in the middle of the front cross-member. Some folks "jacked their engines up" - but that looks like crap. So, if you're putting this in a 32-34 frame and want the engine in the stock location . . . you're kind of hosed. You really need to go back to a front-mount ignition (angle drive magneto, crab distributor, etc). There is no room for the later crankshaft pulley - with the engine in the correct location. Hell, there is barely room for a single-sheeve crankshaft pulley in the stock location! Also, you probably don't want to move the engine back - then you have firewall and a host of other issues (think transmission location, clutch location, etc, etc, etc.). |
03-29-2024, 07:14 AM | #6 |
Senior Member
Join Date: Feb 2022
Posts: 119
|
Re: Magneto and bets
Sponsored Links (Register now to hide all advertisements)
A question. I has invested to much effort in the 8AB set-up so I cant build the case on try use a 38 generator and a std 32 fan. But…if I found a doubble crank pulley and use the RT pumps can I use the inner to generstor and outer to pumps. Would that work. Or try to use a smaller pulley to bend the belt around the lower part of magnet (?) |
03-29-2024, 07:38 AM | #7 |
Senior Member
Join Date: Feb 2022
Posts: 119
|
Re: Magneto and bets
Like this, a extra tension wheel move away the belt from mag.
Last edited by 3W Hank; 03-29-2024 at 07:47 AM. |
03-29-2024, 08:31 AM | #8 |
Senior Member
Join Date: May 2010
Location: NJ
Posts: 6,186
|
Re: Magneto and bets
|
03-29-2024, 08:43 AM | #9 |
Senior Member
Join Date: Apr 2019
Location: Kansas
Posts: 926
|
Re: Magneto and bets
Like this? Works...keeps the belt below the base of the Chevy distributor. The belt tends to crack after about 6-7000 miles with the reverse bend around the pulley.
__________________
"It don't take but country smarts to solve the problem" (Smokey Yunick) '41 Merc Town Sedan / 260" 8CM engine '66 Fairlane four door / "warmed up" 302 |
03-29-2024, 09:16 AM | #10 |
Senior Member
Join Date: Jan 2011
Location: Central Ohio
Posts: 5,073
|
Re: Magneto and bets
Coming up with a solution to re-route the belt could still allow you to run the rest of the necessary early water pumps, early crank pulley, etc.. If you're willing to make parts and customize how the belts work, then you should be able to solve the problem.
Having big-bends in these ole' v-belts will shorten their useful life, but who cares (just keep a spare in your truck). Given all the belt bends - that is why the automotive world went to serpentine belts many years ago. Also, you should be able to run the 32 fan in the stock location (on the generator) - which makes the whole setup a LOT easier to do (in a 32 - 34 chassis). You'll also be able to use the stock 32 motor mounts - which is a big plus if you have a stock front cross-member. (with just a bit of clearancing for the later 37 -48 belt angles). |
03-29-2024, 09:20 AM | #11 |
Senior Member
Join Date: Jan 2011
Location: Central Ohio
Posts: 5,073
|
Re: Magneto and bets
Yeah, something like that should work. The fan setup scares the heck out of me - especially from the perspective of balance and wobble. I sure wouldn't be running it at the RPM that I tend to do in my 32! LOL
|
03-29-2024, 10:34 AM | #12 |
Senior Member
Join Date: Feb 2022
Posts: 119
|
Re: Magneto and bets
Well I like the idea rew 6K..but a fan blade made 1932 and some rust tension in the rivets, jepp not the best idea in the world !
I will never in reality do a burnout with this car ir rew 6K. But I lathed a mock up tension pulley at OD 2.5” and it look like this. It will clear. But how belt tension will be here I has not yet figure out. Note, the magnet will go down more, as Ciirello made a new longer axle so I can has the steady rest in the cover. ( I need ream up hole some ) Last edited by 3W Hank; 03-29-2024 at 11:46 AM. |
03-29-2024, 10:49 AM | #13 | |
Senior Member
Join Date: Apr 2019
Location: Kansas
Posts: 926
|
Re: Magneto and bets
Quote:
The fan setup is stock 1941 Mercury crank driven. Henry probably didn't approve of hot rodders like you! LOL
__________________
"It don't take but country smarts to solve the problem" (Smokey Yunick) '41 Merc Town Sedan / 260" 8CM engine '66 Fairlane four door / "warmed up" 302 |
|
03-29-2024, 11:48 AM | #14 | |
Senior Member
Join Date: May 2015
Posts: 8,183
|
Re: Magneto and bets
Quote:
__________________
The only thing nice about being imperfect is the joy it brings to others.... "Silver rings, your butt! Them's washers!" "We shot our way out of that town for a dollar's worth of steel holes!" - from 'The Wild Bunch' - 1969 https://www.youtube.com/watch?v=7NReUd2_0u0 |
|
03-29-2024, 12:24 PM | #15 |
Senior Member
Join Date: Jan 2011
Location: Central Ohio
Posts: 5,073
|
Re: Magneto and bets
|
03-29-2024, 12:25 PM | #16 | |
Senior Member
Join Date: Jan 2011
Location: Central Ohio
Posts: 5,073
|
Re: Magneto and bets
Quote:
|
|
03-29-2024, 01:16 PM | #17 | |
Senior Member
Join Date: Apr 2019
Location: Kansas
Posts: 926
|
Re: Magneto and bets
Quote:
Yes, it is. Seems crazy doesn't it?
__________________
"It don't take but country smarts to solve the problem" (Smokey Yunick) '41 Merc Town Sedan / 260" 8CM engine '66 Fairlane four door / "warmed up" 302 |
|
03-29-2024, 01:21 PM | #18 |
Senior Member
Join Date: Feb 2022
Posts: 119
|
Re: Magneto and bets
Its not that uncommon to use a stock 32 fan on a older generator in a 32 chassie as I understand it.
I heard of 32 wings has fly out cars on hwy… But my is in a very nice condition, not pitted. I was just try to give this issue a sololution. Shore I can bought RT pumps but that get me change the idea on the generator/fan. It also look better with belt closer to block ( my opinion ) I got a pretty straight line. But it might be needed move out the water pump pulley atleast some, so my bet it will be RT pumps. Last edited by 3W Hank; 03-29-2024 at 02:55 PM. |
03-29-2024, 01:24 PM | #19 | |
Senior Member
Join Date: May 2015
Posts: 8,183
|
Re: Magneto and bets
Quote:
__________________
The only thing nice about being imperfect is the joy it brings to others.... "Silver rings, your butt! Them's washers!" "We shot our way out of that town for a dollar's worth of steel holes!" - from 'The Wild Bunch' - 1969 https://www.youtube.com/watch?v=7NReUd2_0u0 |
|
03-30-2024, 06:56 AM | #20 |
Senior Member
Join Date: Feb 2022
Posts: 119
|
Re: Magneto and belts
Anyone know this company is still fix pumps ?
I need get the pulley out some to clear the covers. http://www.fordcollector.com/water_pumps.htm |
03-30-2024, 07:49 AM | #21 |
Senior Member
Join Date: May 2010
Location: imperial,mo
Posts: 694
|
Re: Magneto and belts
Hank, yes Skip Haney is still in business. On a side note, I'm going to use some of the same components that you are, but with an angle drive. I'm going to dig those parts out and see if there is any interference. I believe Don Orosco (R.I.P.) reproduced the angle drive and there may be some surplus stock available. I think all Don's parts went to a guy in Australia.
Tom |
03-30-2024, 12:52 PM | #22 |
Senior Member
Join Date: Jan 2011
Location: Central Ohio
Posts: 5,073
|
Re: Magneto and belts
Are you putting this in a 32 - using a 32 frame and stock front cross-member? That will determine what you can and can't do with belt location.
|
Sponsored Links (Register now to hide all advertisements) |
|
03-30-2024, 02:40 PM | #23 |
Senior Member
Join Date: May 2010
Location: imperial,mo
Posts: 694
|
Re: Magneto and belts
Hank, as I stated earlier I'm using a Vertex mag also, and I was concerned that I may have problems too. I know you have spent a lot of money and time on your setup, I'm offering this as a last resort. I'm using a Barker (vintage) angle drive and a spacer (see images) the belt clears the mag cap by about 3/8". You have to machine a replacement shaft to accommodate the spacer. Ten years ago I took my sketch of the shaft to what I thought was a competent machine shop and they made a mess of it. I got discouraged and just put everything back on the shelf. Your problems prompted me to get this stuff back out and mock it up to see if it would work or not. Also I'm going to run truck pumps and this is my solution to the problem with the front crossmember, I'm also going to incorporate a '30-'31 crossmember with the '32 crossmember to lower the car a bit.
Tom |
03-30-2024, 02:49 PM | #24 |
Senior Member
Join Date: May 2010
Location: imperial,mo
Posts: 694
|
Re: Magneto and belts
Hank, additional images of Vertex plans, my sketch of shaft, and a beauty shot of motor.
Hope this helps, Tom |
03-30-2024, 03:59 PM | #25 | |
Senior Member
Join Date: May 2010
Location: Charlotte NC KiWi-L100 available here
Posts: 2,963
|
Re: Magneto and belts
Quote:
|
|
03-30-2024, 04:35 PM | #26 | |
Senior Member
Join Date: Jan 2011
Location: Central Ohio
Posts: 5,073
|
Re: Magneto and belts
Sponsored Links (Register now to hide all advertisements)
Quote:
And if you trim the flange/lip off of the back side you should strengthen the cross member a bit . . . or run a modern flat Model A type cross member. Also, if you're running standard U-bolts, then you're even more limited to what you can do - they have to be where they came from the factory. I'll take a couple pictures of my setup and post them - then everybody can see what needs to be considered. My setup if a stock 32 frame with a 42 Mercury flathead in the stock location (using 32 motor mounts and a 32 fan). |
|
03-30-2024, 05:12 PM | #27 | |
Senior Member
Join Date: May 2010
Location: imperial,mo
Posts: 694
|
Re: Magneto and belts
Quote:
Tom |
|
03-30-2024, 05:19 PM | #28 | |
Senior Member
Join Date: May 2010
Location: imperial,mo
Posts: 694
|
Re: Magneto and belts
Quote:
Tom |
|
03-30-2024, 06:58 PM | #29 |
Senior Member
Join Date: May 2010
Location: Charlotte NC KiWi-L100 available here
Posts: 2,963
|
Re: Magneto and belts
I’m not home or I could send pecs but the adapter spacer needs to have an ID that centers the shaft adapter button. This is nothing new and been used for years on flatheads with different ignitions and cams. I am presently adapting a Twin 4 cylinder mags on a Vee drive to a flathead.
|
03-30-2024, 07:13 PM | #30 |
Senior Member
Join Date: Jan 2011
Location: Central Ohio
Posts: 5,073
|
Re: Magneto and belts
If you're making a spacer plate, it isn't a bad idea to put a sealed roller bearing in it - and then make a shaft to run inside of it. Here is what I did to space my Vertex angle drive magneto out a bit. This gives a bit more clearance for the fan belt.
I don't like adapters flopping around and giving me timing fluctuations - but I'm a bit of a perfectionist. Plate-Finished-Back copy.jpg Plate-Finished-Front copy.jpg PlateOnEngine copy.jpg MagMounted4 copy.jpg Drive-Shaft-Finished copy.jpg Mag-Drive-Mounted copy.jpg |
03-30-2024, 07:26 PM | #31 |
Senior Member
Join Date: Jan 2011
Location: Central Ohio
Posts: 5,073
|
Re: Magneto and belts
Here is a picture to give everybody an idea as to what you have to work with. If you don't modify the crossmember, then you only have about 5/8" to 3/4" of space in front of a single-sheave pulley.
You can modify the crossmember to get more room - which has been done a zillion times. I really pays to mock all this stuff up in the chassis to make some final decisions on how best to address the problem. IMG_0949.jpg |
03-30-2024, 07:29 PM | #32 | |
Senior Member
Join Date: Jan 2011
Location: Central Ohio
Posts: 5,073
|
Re: Magneto and belts
Quote:
|
|
03-30-2024, 07:43 PM | #33 | |
Senior Member
Join Date: May 2010
Location: NJ
Posts: 6,186
|
Re: Magneto and belts
Quote:
Not to derail, but I've been doing some work on my roadster and I noticed a rub spot where the belt/pulley is kissing the center of the tie rod. Looking at your pictures, seems like yours is doing the same. Thought of making a spacer to put under the pump legs to raise the motor us a tad, but I think I'll leave it alone. |
|
03-30-2024, 07:44 PM | #34 |
Senior Member
Join Date: May 2010
Location: imperial,mo
Posts: 694
|
Re: Magneto and belts
Bored and stroked, I see the way you supported the extension shaft, that's a good idea and I may copy your method. What started the idea of a solid shaft was the original Vertex drawing ( the image that posted up side down) shows a solid shaft and I just continued with that thought.
Tom |
03-30-2024, 08:19 PM | #35 | |
Senior Member
Join Date: Jan 2011
Location: Central Ohio
Posts: 5,073
|
Re: Magneto and belts
Quote:
|
|
03-30-2024, 08:20 PM | #36 | |
Senior Member
Join Date: Jan 2011
Location: Central Ohio
Posts: 5,073
|
Re: Magneto and belts
Quote:
|
|
04-05-2024, 10:59 AM | #37 |
Senior Member
Join Date: Feb 2022
Posts: 119
|
Re: Magneto and belts
I has a 32 front cross but it’s cutted after spring.
So motormounts will on frame. I just borrowed 2 pumps, one 8AB and one 59 BA ’truck’ ( dual groove ) I found 2 std car 59BA here in Sweden but I need get pulley out atleast 3/8”. I really ’like’ to use my pre 39 generator and the std 32 fan, So with the dual groove it might work. Say I use inner only crank/generstor and outher the pumps. Or use driverside at inner grove and the crank/generator and on magnet side use the outer. That is a ide, or ? Last edited by 3W Hank; 04-15-2024 at 01:06 AM. Reason: Spell check |
04-05-2024, 11:16 AM | #38 | |
Senior Member
Join Date: May 2015
Posts: 8,183
|
Re: Magneto and belts
Quote:
__________________
The only thing nice about being imperfect is the joy it brings to others.... "Silver rings, your butt! Them's washers!" "We shot our way out of that town for a dollar's worth of steel holes!" - from 'The Wild Bunch' - 1969 https://www.youtube.com/watch?v=7NReUd2_0u0 |
|
04-10-2024, 12:20 PM | #39 |
Senior Member
Join Date: Jan 2011
Location: Central Ohio
Posts: 5,073
|
Re: Magneto and belts
I don't see how you're going to be able to use the inner belt unless you make some sort of custom "idler" that is driven by the outer belt from the crank pulley (which will also drive the outer sheeve of the dual-sheeve 37-48 truck pumps) and then it drives the generator/fan on a short belt behind it. You might be able to mount the idler bracket to the two front intake manifold bolts on each side. The idler will need to be able to slide to provide tension to the outer belt and the generator/fan can slide to provide tension to the rear belt. You'll not use the rear sheeve on the water pumps.
|
04-10-2024, 01:37 PM | #40 |
Senior Member
Join Date: May 2010
Location: imperial,mo
Posts: 694
|
Re: Magneto and belts
Hank, have you considered mounting the sheaves (pulleys) backwards, I know it's not an ideal situation, but sometimes you have to do what you have to do.
Tom P.S. I typed that response without thinking it thru, of course you would have to contend with the crank pulley and generator pulley. Probably not a good idea after all. TW Last edited by hotcoupe; 04-10-2024 at 01:42 PM. |
04-11-2024, 06:16 PM | #41 |
Senior Member
Join Date: Jun 2010
Location: San Antonio, Texas
Posts: 16,442
|
Re: Magneto and belts
There is a caveat to using magnetos. They don't generally have any way to change the spark advance. Aircraft use them but they pretty much run at a fixed RPM for the most part. They have to have a starting aid on at least one mag that retards the spark or they will kick back. Most folks that run them are using them for racing. Fuel mileage suffers if there is no load control to retard the spark. I'm not saying don't use one but there may be regrets later on if you do.
|
04-11-2024, 08:44 PM | #42 | |
Senior Member
Join Date: Dec 2010
Location: East Coast in CT
Posts: 1,531
|
Re: Magneto and belts
Quote:
Rotorwrench this type of magneto made by Scintilla - Vertex which Hank is using has a centrifugal advance system in the lower bowl of the housing. So they this type of mag will work for fine for a non racing application. Many of us Hotrod types have always used the Vertex mags on the street for many thousands of miles. Another point of interest fuel milage is rarely a concern in application's like this. Ronnieroadster
__________________
I use the F word a lot no not that word these words Flathead , Focus and Finish. "Life Member of the Bonneville 200 MPH Club using a Ford Flathead block" Owner , Builder, Driver of the First Ford Flathead bodied roadster to run 200 MPH Record July 13, 2018 LTA timing association 200.921 in one and a half miles burning gasoline. First ever gas burning Ford flathead powered roadster to run 200 MPH at Bonneville Salt Flats setting the record August 7th 2021 at 205.744 MPH |
|
Sponsored Links (Register now to hide all advertisements) |
|
04-12-2024, 07:32 AM | #43 |
Senior Member
Join Date: Mar 2011
Location: upstate NY
Posts: 478
|
Re: Magneto and bets
|
04-12-2024, 12:19 PM | #44 |
Senior Member
Join Date: Jun 2010
Location: San Antonio, Texas
Posts: 16,442
|
Re: Magneto and belts
There is not really any way to put load control on a mag unless the whole mag rotates or at least the magnet rotates along with the points. Centrifugal impulse couplings are not for anything other than starting aids. They retard the spark until the engine starts and then the centrifugal weights cut the starting aid out of the system. Mags have to maintain proper internal timing to keep E-gap at the point opening or they won't run. You move the points plate and the internal timing is off.
The old Motorcycles that had load control moved the whole mag to change the advance for load control. The old S2R Lucas mag on my 58 Indian Enfield just has a little impulse coupling for starting and then runs full advance all the time. Aircraft mags work the same way. They will run OK but their is no load control. It's just full advance all the time. Perhaps they have a model that moves the magnets along with the points but most of the old Vertex mags are the Locked type. The Lucas K2R Cycle mag was set up for adjustable advance but it was manual and worked by having the coil built into the rotor with fixed magnets. That way they could move the magnets and the breaker points a little bit. P-Mags are starting to show up on aircraft now days and they are electronically controlled mags much like an electronic ignition. They have a programmable advance curve but they are basically a little alternator with an electronic ignition. They are not a true magneto that runs off the building magnetic field in the coil which inducts as the breaker points open at E-gap when the magnetic field reverses due to rotation of the magnet. Last edited by rotorwrench; 04-12-2024 at 12:44 PM. |
04-12-2024, 01:57 PM | #45 | |
Senior Member
Join Date: Dec 2010
Location: East Coast in CT
Posts: 1,531
|
Re: Magneto and belts
Quote:
It must be a miracle on how the Vertex mags actually have an advance system. But they do. Oh and you can get them locked as well meaning no advance. Ronnieroadster
__________________
I use the F word a lot no not that word these words Flathead , Focus and Finish. "Life Member of the Bonneville 200 MPH Club using a Ford Flathead block" Owner , Builder, Driver of the First Ford Flathead bodied roadster to run 200 MPH Record July 13, 2018 LTA timing association 200.921 in one and a half miles burning gasoline. First ever gas burning Ford flathead powered roadster to run 200 MPH at Bonneville Salt Flats setting the record August 7th 2021 at 205.744 MPH |
|
04-12-2024, 02:25 PM | #46 |
Senior Member
Join Date: Jun 2010
Location: San Antonio, Texas
Posts: 16,442
|
Re: Magneto and belts
Sponsored Links (Register now to hide all advertisements)
|
04-12-2024, 04:01 PM | #47 |
Senior Member
Join Date: Jan 2011
Location: Central Ohio
Posts: 5,073
|
Re: Magneto and belts
I have a few vintage Scintilla magnetos - they were the company long before Vertex. Every one of them has advance plates in the bottom.
The advance mechanism is 100% mechanical - it only understands RPM. With that said, in 100% race applications, the advance plates are frequently setup to lock the mag down - so what you set the initial advance too is the final advance. You can configure the advance plates to achieve the correct amount of total advance as well as when it comes in. On flathead Ford engines, I like to have about 8 degrees of mechanical advance in the mag (16 crankshaft degrees) and then about 8 degrees of initial advance. This gives me the total of 24 degrees of advance - which is usually about the right amount (give or take 2 degrees). I like to have all the advance in by about 2000 RPM. The original Harman-Collins magnetos had no advance mechanism - the total advance is 100% configured via the rotation of the whole unit. |
04-12-2024, 06:21 PM | #48 |
Senior Member
Join Date: Jun 2010
Location: San Antonio, Texas
Posts: 16,442
|
Re: Magneto and belts
I found a good diagram and can see the way the drive fits into the the advance mechanism which in turn is driving the magnet shaft and breaker cam. It showed a clothes pin spring set up to push the advance weights back to starting position. It was a simple design but effective. It is likely as reliable as the performance distributors made by Mallory and other centrifugal advance set ups. They need need a little lubrication now and then. They can have spring wear over time just like any other.
As was mentioned previously, the advance function is a product of RPM. There is no way to affect load control. This is the way most aftermarket performance distributors are set up as well. Few have vacuum advance. If a mag is locked then a person would have to turn the engine over a revolution or more before turning on the mag switch. It could kick back too easy if started with the mag switch on prior to starter function. At least the centrifugal advance would allow for retard at starts. I don't know how much power the mag robs from the engine but they do take more torque to spin than a points distributor. Two of those bad boys is going to take that much more. Last edited by rotorwrench; 04-12-2024 at 06:46 PM. |
04-13-2024, 01:23 PM | #49 |
Senior Member
Join Date: Jan 2011
Location: Central Ohio
Posts: 5,073
|
Re: Magneto and belts
Yeah, when running a locked-out mag (all advance in), I will pump some fuel into the motor, leave the mag switch OFF, hit the starter and let it spin a couple times - then turn the mag on. This is the best way to be "kind" to the starter! LOL
|
04-15-2024, 01:33 AM | #50 |
Senior Member
Join Date: Feb 2022
Posts: 119
|
Re: Magneto and belts
I has as I said bought parts to the BA block with AB parts ( camcover and cam and the magneto shaft ) and try get it to fit the pre 39 generator and to use the 32 fan.
Mix is not easy solve. At this stage I cant change cam as to much time/money in it. Anyway I find and bought BA car pumps so my idea is to go 1 belt with a tension puller, but that need me to get all groves out to free belt hit the camcover. This was not something they did do in the old days but I will try. As my front cross is cutted I has space for RT pumps and that will solve issue, but I dont like the pumps and then the generator and fan need be replaced, sounds not a big issue but I invested time and money get those parts plus I like the look ( idea on heads/intake/carbs/aircleaners/generator is from Hetfields roadster ) Why did I leave the 3-bolt camcover. Well I never found a angle adapter or a magneto and then I ’thought’ the 8AB desl on belt was the solution even if I really did not like to use the AB parts, but once find the magnet, then I got a cam cover and then the cam I wanted to use ( the 425 Potvin ) But mix it with old style generator and the 32 fan get it harder. Best idea here is use all 8AB parts in front of course. Now I will bought a radiator ( has work on it for 6 month ) and see how it fit. By the way, not easy find a decent V8 radiator so collect parts take time. …then one see the next isdue :- ) |
04-15-2024, 01:35 AM | #51 |
Senior Member
Join Date: Feb 2022
Posts: 119
|
Re: Magneto and belts
Hetfields set-up but not a Vertex..
|
04-15-2024, 10:51 AM | #52 |
Senior Member
Join Date: May 2015
Posts: 8,183
|
Re: Magneto and belts
__________________
The only thing nice about being imperfect is the joy it brings to others.... "Silver rings, your butt! Them's washers!" "We shot our way out of that town for a dollar's worth of steel holes!" - from 'The Wild Bunch' - 1969 https://www.youtube.com/watch?v=7NReUd2_0u0 |
04-15-2024, 02:43 PM | #53 |
Senior Member
Join Date: Feb 2022
Posts: 119
|
Re: Magneto and belts
I’ll just talked to Skip Heney and he could make me the early pumps and has the pulley out 1/4” or 3/8” out.
|
04-15-2024, 05:05 PM | #54 |
Senior Member
Join Date: Jun 2010
Location: San Antonio, Texas
Posts: 16,442
|
Re: Magneto and belts
I can't tell for sure but the Photo in posts 51/52 looks like a crab type cap. That would be a 1942 type set up or a modified rabbit ear distributor. With centrifugal advance and a vacuum brake they work OK and have some load control. Maybe not as hot as the Scintilla/Vertex mag though. The Harmon Collins dual coil set up was one of the hot items back in the day
Last edited by rotorwrench; 04-15-2024 at 05:42 PM. |
04-15-2024, 08:28 PM | #55 |
Senior Member
Join Date: Feb 2022
Posts: 119
|
Re: Magneto and belts
Yes that engine has not a Vertex but it shows my idea of set up.
|
04-19-2024, 03:39 PM | #56 |
Senior Member
Join Date: Feb 2022
Posts: 119
|
Re: Magneto and belts
I got my 32 fan today from LA and if 6K its shore is a intresting ride…:- ))
|
04-19-2024, 05:26 PM | #57 |
Senior Member
Join Date: May 2015
Posts: 8,183
|
Re: Magneto and belts
__________________
The only thing nice about being imperfect is the joy it brings to others.... "Silver rings, your butt! Them's washers!" "We shot our way out of that town for a dollar's worth of steel holes!" - from 'The Wild Bunch' - 1969 https://www.youtube.com/watch?v=7NReUd2_0u0 |
04-19-2024, 06:10 PM | #58 |
Senior Member
Join Date: Dec 2010
Location: East Coast in CT
Posts: 1,531
|
Re: Magneto and belts
The photo may be deceiving since it looks like the fan is going to end up in the middle of the radiator!
Ronnieroadster
__________________
I use the F word a lot no not that word these words Flathead , Focus and Finish. "Life Member of the Bonneville 200 MPH Club using a Ford Flathead block" Owner , Builder, Driver of the First Ford Flathead bodied roadster to run 200 MPH Record July 13, 2018 LTA timing association 200.921 in one and a half miles burning gasoline. First ever gas burning Ford flathead powered roadster to run 200 MPH at Bonneville Salt Flats setting the record August 7th 2021 at 205.744 MPH |
04-20-2024, 04:35 AM | #59 |
Senior Member
Join Date: Feb 2022
Posts: 119
|
Re: Magneto and belts
Yes it shore look odd, maybe its not a 32 but if fit on generator.
My Lincoln transmission is soon done then I will be look on a radiator ( again ) so then its wait on my restored waterpumps from Skip in Florida and I has new Drake motor mounts ( as the Speedway was joke ) and mounts brace is from and 60 HP 37 engine that will be into frame. -Then I will see if fan hit the radiator. Fan is in a really nice condition, no pittings and tube inside is like new… but rivets is old and that long fan and ’maybe’ 6K… I never used mech fans on my cars before ( race, only electric but in this case a Big No. Last edited by 3W Hank; 04-20-2024 at 03:12 PM. |
04-20-2024, 09:01 AM | #60 |
Senior Member
Join Date: Feb 2022
Posts: 119
|
Re: Magneto and belts
Here is what seller said on a 32 fan in a 32 frame ;
I’ve run that intake set up many times on 32’s I’ve added a pic of my recent project……. 32’s have lots of forward space! Full length is always best. Hope this helps |
04-20-2024, 10:06 AM | #61 |
Member
Join Date: May 2010
Location: PETALUMA CALI
Posts: 89
|
Re: Magneto and belts
On the HAMB look up GRISWOLD MAG.
|
04-20-2024, 03:14 PM | #62 |
Senior Member
Join Date: Feb 2022
Posts: 119
|
Re: Magneto and belts
I has invested allot of time ( money ) in my magnet and decided cam ( 8AB ) plus this is a short angle drive and has also its own issues on fans and belts.
|
Sponsored Links (Register now to hide all advertisements) |
|
04-22-2024, 09:47 AM | #63 |
Senior Member
Join Date: Feb 2022
Posts: 119
|
Re: Magneto and belts
The belts that was used ex 78-8620-A is little over 5/8”, but when did the smaller belts came into US production, like we see on cars from the 60’s and 0.44” wide.
In my case if those belts would work in the wider grooves and is ’time correct’ etc early 50’s it save me some space vs the 59 pumps and the 8 camcover. Ideas. Last edited by 3W Hank; 04-22-2024 at 10:55 AM. |
04-22-2024, 02:43 PM | #64 | |
Senior Member
Join Date: Dec 2010
Location: East Coast in CT
Posts: 1,531
|
Re: Magneto and belts
Quote:
The narrow belt came on the Ford 8BA in 1949 for the engines used in some passenger cars. The wide belt continued being used for the Ford trucks in 1949 to 1953. Ronnieroadster
__________________
I use the F word a lot no not that word these words Flathead , Focus and Finish. "Life Member of the Bonneville 200 MPH Club using a Ford Flathead block" Owner , Builder, Driver of the First Ford Flathead bodied roadster to run 200 MPH Record July 13, 2018 LTA timing association 200.921 in one and a half miles burning gasoline. First ever gas burning Ford flathead powered roadster to run 200 MPH at Bonneville Salt Flats setting the record August 7th 2021 at 205.744 MPH |
|
04-22-2024, 06:02 PM | #65 |
Senior Member
Join Date: Feb 2022
Posts: 119
|
Re: Magneto and belts
Will the narrow belt fit on the wider pulleys ?
|
|
|
Sponsored Links (Register now to hide all advertisements) |
|