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03-30-2024, 07:49 AM | #21 |
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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.
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03-30-2024, 12:52 PM | #22 |
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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.
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03-30-2024, 02:40 PM | #23 |
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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.
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03-30-2024, 02:49 PM | #24 |
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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 | |
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Re: Magneto and belts
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03-30-2024, 04:35 PM | #26 | |
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Re: Magneto and belts
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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). |
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03-30-2024, 05:12 PM | #27 | |
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Re: Magneto and belts
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03-30-2024, 05:19 PM | #28 | |
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Re: Magneto and belts
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03-30-2024, 06:58 PM | #29 |
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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.
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03-30-2024, 07:13 PM | #30 |
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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 |
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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 | |
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Re: Magneto and belts
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03-30-2024, 07:43 PM | #33 | |
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Re: Magneto and belts
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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. |
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03-30-2024, 07:44 PM | #34 |
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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.
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03-30-2024, 08:19 PM | #35 | |
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03-30-2024, 08:20 PM | #36 | |
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04-05-2024, 10:59 AM | #37 |
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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 | |
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Re: Magneto and belts
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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 |
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04-10-2024, 12:20 PM | #39 |
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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.
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04-10-2024, 01:37 PM | #40 |
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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. |
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