|
Sponsored Links (Register now to hide all advertisements) |
|
|
Thread Tools | Display Modes |
09-18-2013, 08:43 PM | #21 |
Senior Member
Join Date: Jul 2010
Posts: 426
|
Re: Nu Rex timing advance system
Well, it's in there! The shaft is clear of the head gasket, no rubbing. Now, where do I keep my spark lever?
Thanks guys. |
09-18-2013, 09:12 PM | #22 | |
Senior Member
Join Date: May 2010
Location: Kalamazoo
Posts: 1,656
|
Re: Nu Rex timing advance system
Quote:
Of course, if you forget and leave it retarded, the motor will overheat. Because accidentally over advancing can do real damage quickly, I have a little clamp to block that from happening: Steve |
|
Sponsored Links (Register now to hide all advertisements) |
|
06-15-2014, 11:09 PM | #23 |
Senior Member
Join Date: Jan 2013
Location: Bettendorf, Iowa
Posts: 110
|
Re: Nu Rex timing advance system
I bought one of these Nu-Rex kits and tried to install it today. I got stuck trying to remove the long shaft from the distributor. Can someone tell me the correct way to remove the original long shaft from my distributor to allow me to use the new shaft included in my kit?
Curt
__________________
1930 Model A Fordor Murray Body |
06-15-2014, 11:46 PM | #24 |
Senior Member
Join Date: Nov 2010
Location: Anchorage, Alaska
Posts: 9,115
|
Re: Nu Rex timing advance system
You need to get the short upper shaft in the distributor.
__________________
Alaskan A's Antique Auto Mushers of Alaska Model A Ford Club of America Model A Restorers Club Antique Automobile Club of America Mullins Owner's Club |
06-16-2014, 05:39 AM | #25 | |
Senior Member
Join Date: May 2010
Location: Young Harris, GA
Posts: 1,815
|
Re: Nu Rex timing advance system
Quote:
Slide the long shaft out of the distributor. Clean it up before sliding it out so you don't mess up the distributor bushings. Slide a new short shaft in distributor. Replace collar and drive in new roll pin. Transfer the cam over to the new short shaft. Carry on.
__________________
Jim Cannon Former MAFCA Technical Director "Have a Model A day!" |
|
06-16-2014, 11:12 AM | #26 |
Senior Member
Join Date: Jul 2010
Posts: 426
|
Re: Nu Rex timing advance system
Sponsored Links (Register now to hide all advertisements)
I have been using the Nu Rex for 400 miles now. It does just what it claims to. It advances smoothly and actually, I don't even know it's in there except I no longer have to fiddle with my spark lever. However, one of our fellow members claims that it's the reason I complain of getting only 9.4 miles per gallon. I can't imagine why this would make a difference, the car doesn't run rich. The engine was a fresh rebuild and I never had a chance to run it without the Nu Rex. Has anyone else noticed an adverse change in fuel mileage using it? |
06-16-2014, 11:16 AM | #27 |
Senior Member
|
Re: Nu Rex timing advance system
Mine only continued to CLIMB for the better!
__________________
Mark Maron Ill., Region MARC & MAFCA MARC JSC Member MAFFI Trustee National Facebook Admin. https://www.facebook.com/groups/MARC.group/ A7191-Sport Coupe 29 Roadster 29-Town Sedan 29-Original Special Coupe |
06-16-2014, 02:35 PM | #28 |
Senior Member
Join Date: Jan 2013
Location: Bettendorf, Iowa
Posts: 110
|
Re: Nu Rex timing advance system
Carl
I have the short shaft that came with the kit Jim Thanks Jim, that is the information I was looking for. Curt
__________________
1930 Model A Fordor Murray Body |
06-16-2014, 04:18 PM | #29 |
Senior Member
Join Date: Jan 2013
Location: Bettendorf, Iowa
Posts: 110
|
Re: Nu Rex timing advance system
I took the distributor out and drove out the pin. The collar slid right off and I was able to get the long shaft out of the distributor without any issues. I know what most are going to say, but is it possible I have a one-piece long shaft? I do not see any lines/seams to break this in two.
__________________
1930 Model A Fordor Murray Body |
06-16-2014, 05:14 PM | #30 |
Senior Member
Join Date: Nov 2010
Location: Anchorage, Alaska
Posts: 9,115
|
Re: Nu Rex timing advance system
The shaft that comes with the kit is indeed the short shaft, but what you need is the "upper distributor shaft" so aptly described in Jim's post (#25). There was/is an aftermarket shaft that is one piece that incorporates both the distributor shaft and the short shaft directly below the distributor, and that's what you have. What you need is an original style short distributor shaft. The one shown below is drilled for ease of oiling, but you can also get one that is not drilled. (Picture from Snyder's catalog, Part # A-12178-SD)
__________________
Alaskan A's Antique Auto Mushers of Alaska Model A Ford Club of America Model A Restorers Club Antique Automobile Club of America Mullins Owner's Club |
06-16-2014, 10:59 PM | #31 |
Senior Member
|
Re: Nu Rex timing advance system
Then where is the gas going? We have read here of A's getting 20MPG, I think that the poll that was up a while ago had an average of 16-18 mpg.
__________________
What's right about America is that although we have a mess of problems, we have great capacity - intellect and resources - to do some thing about them. - Henry Ford II |
06-17-2014, 02:47 AM | #32 |
Senior Member
Join Date: May 2010
Location: Mpls, MN
Posts: 27,582
|
Re: Nu Rex timing advance system
I wonder what the Nu Rex timing does for the timing when using the high compression head, which takes less spark advance. Is the spark lever still connected, so you could retard the spark?
|
06-17-2014, 09:43 AM | #33 | |
Senior Member
Join Date: Nov 2010
Location: Anchorage, Alaska
Posts: 9,115
|
Re: Nu Rex timing advance system
Quote:
One of the guys in our club just timed his with the spark lever all the way down, then he can retard it at will. Another guy just timed it retarded 2 or 3 degrees from the get-go, thereby reducing the amount of the automatic advance. There's a couple more variations of these, but we will see what works best during this tour (about 1,600 miles in a week)
__________________
Alaskan A's Antique Auto Mushers of Alaska Model A Ford Club of America Model A Restorers Club Antique Automobile Club of America Mullins Owner's Club |
|
06-17-2014, 06:36 PM | #34 |
Member
Join Date: May 2010
Location: Ontario,NY
Posts: 83
|
Re: Nu Rex timing advance system
I have had mine for a number of years and probably 5000 miles. There was only one time when I thought I had a problem. I had blown a head gasket on the road. I replaced the gasket with no problem, but forgot to check the opening for the distributor shaft. The gasket interfered with the rotation of the shaft and had the timing all messed up!! Once I discovered the problem, it was an easy fix to correct the opening and then everything was back to normal
|
06-18-2014, 12:38 PM | #35 |
Senior Member
Join Date: Jul 2010
Posts: 426
|
Re: Nu Rex timing advance system
I was told that you cannot use the Nu Rex unit with a high compression head as the H/C head is taller and the distributor mounts higher thus affecting the shaft length.
|
06-18-2014, 01:03 PM | #36 | |
Senior Member
Join Date: Nov 2010
Location: Anchorage, Alaska
Posts: 9,115
|
Re: Nu Rex timing advance system
Quote:
I would also guess that if there's a problem with the Nu Rex unit, there would be the same problem with any distributor set up.
__________________
Alaskan A's Antique Auto Mushers of Alaska Model A Ford Club of America Model A Restorers Club Antique Automobile Club of America Mullins Owner's Club |
|
06-19-2014, 09:40 AM | #37 |
Senior Member
Join Date: Jul 2010
Posts: 426
|
Re: Nu Rex timing advance system
Well that makes sense. The Nu Rex shaft length and the stock shaft length would be the same. Therefore, if the head is too tall for the Nu Rex it would also be too tall for a stock shaft.
|
09-29-2015, 04:07 AM | #38 |
Senior Member
Join Date: Jun 2014
Location: Melbourne, Australia
Posts: 7,495
|
Re: Nu Rex timing advance system
I Know, I know, this is an old thread. I found it when searching for info on the NuRex automatic timing mechanism. I have been working on a client's car for the past couple of days doing all sorts of things to get it going properly. A BIG part of the problem is that the auto advance mechanism actually RETARDS the ignition as the revs increase. Pretty soon, the engine reaches a limit on what it will do.
Has anybody heard of these jiggers working backwards like this one?? Is it a manufacturing problem - bad batch? I note that the design of the device prevents it being installed up side down so that is not the problem.
__________________
I'm part of the only ever generation with an analogue childhood and a digital adulthood. |
09-29-2015, 06:57 AM | #39 |
Senior Member
Join Date: Dec 2010
Location: FRESNO, CA
Posts: 12,560
|
Re: Nu Rex timing advance system
Synchro,
Can you MODIFY it, to FLIP the GYRO goody over?? Bill W.
__________________
"THE ASSISTANT GURU OF STUFF" |
09-29-2015, 04:53 PM | #40 |
Senior Member
Join Date: Jun 2014
Location: Melbourne, Australia
Posts: 7,495
|
Re: Nu Rex timing advance system
Bill, That is not an easy thing to do. We looked at that and decided it wasn't an option. The "Gyro Goody" as you call it is spring loaded and there is no provision for fixing the spring on the opposite side. Otherwise, it does seem to be symmetrical.
__________________
I'm part of the only ever generation with an analogue childhood and a digital adulthood. |
Thread Tools | |
Display Modes | |
|
|
Sponsored Links (Register now to hide all advertisements) |
|