Welcome! Please use the navigational links to explore our website.
PartsASAP LogoCompany Logo (800) 853-2651

Shop Now

   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver

Attention Forum Users: On the 28th of December 2023 at 9:00am Central Time, we will be taking the forums down for maintenance while we prepare the new forums for your use. Please click here for more information.

Minneapolis Moline Tractors Discussion Forum
:

MM U advancing cam timing? why? what?

Welcome Guest, Log in or Register
Author 
Jake Winn

05-11-2005 10:28:38




Report to Moderator

I was curious about advancing the cam timing as mentioned in an earlier post. Wont this mess up the timing of the engine, or is not a big deal. I would assume by doing this it might allow the intake valves to open earler letting more fuel/air mix in the cylinder, but what about the exhaust vavles? how will that be affected? Thanks for any help Jake




[Log in to Reply]   [No Email]
Terry Ohnmacht

05-11-2005 20:27:44




Report to Moderator
 Re: MM U advancing cam timing? why? what? in reply to Jake Winn, 05-11-2005 10:28:38  
So if you would advance it you would turn the camshaft one notch counter clock wise right?



[Log in to Reply]  [No Email]
Jim Parisot

05-11-2005 17:43:36




Report to Moderator
 Re: MM U advancing cam timing? why? what? in reply to Jake Winn, 05-11-2005 10:28:38  
Jake,

I think another reason one can get away with advancing the cam timing a tooth is because of the wear and slop in the valve train. After all the hours these tractors have run there is sure to be some. You may be getting it back close to original timing specs. I've heard some fellas say it's real cheap power gain on a well worn engine, and to just do it automatically if you have one like that.

Jim

[Log in to Reply]  [No Email]
Augie

05-11-2005 11:14:20




Report to Moderator
 Re: MM U advancing cam timing? why? what? in reply to Jake Winn, 05-11-2005 10:28:38  
Factory cam timing was a compromise between power and fuel economy. Advancing the cam is free horsepower.



[Log in to Reply]  [No Email]
Andy2

05-12-2005 21:10:37




Report to Moderator
 Re: MM U advancing cam timing? why? what? in reply to Augie, 05-11-2005 11:14:20  
If you work them in the field wouldn't the EGT's be higher? Is there a risk of burning valves?



[Log in to Reply]  [No Email]
Augie

05-13-2005 22:46:55




Report to Moderator
 Re: MM U advancing cam timing? why? what? in reply to Andy2, 05-12-2005 21:10:37  
Ours are retired from farm work. They only get worked on the pulling track.



[Log in to Reply]  [No Email]
Jerry Cent. Mi.

05-11-2005 13:36:42




Report to Moderator
 Re: MM U advancing cam timing? why? what? in reply to Augie, 05-11-2005 11:14:20  
When this is being done is it necessary to loosen the tappet pressure to keep the cam from turning when the gear is pulled?



[Log in to Reply]  [No Email]
hobby77

05-11-2005 22:34:39




Report to Moderator
 Re: MM U advancing cam timing? why? what? in reply to Jerry Cent. Mi., 05-11-2005 13:36:42  
works best to pull the gear off the crank then back the crank up one tooth then push the gear back on.



[Log in to Reply]  [No Email]
Augie

05-11-2005 15:02:05




Report to Moderator
 Re: MM U advancing cam timing? why? what? in reply to Jerry Cent. Mi., 05-11-2005 13:36:42  
I've never tried it with the rocker shaft installed.



[Log in to Reply]  [No Email]
RickGoodman

05-12-2005 18:44:17




Report to Moderator
 Re: MM U advancing cam timing? why? what? in reply to Augie, 05-11-2005 15:02:05  
I have MM G puller with the 800 cam specs i have dynoed it both ways, advancing that cam helps both power and most of all bottom end lugging quuit a bit. the engine is a 433 cid.



[Log in to Reply]  [No Email]
Augie

05-12-2005 19:58:44




Report to Moderator
 Re: MM U advancing cam timing? why? what? in reply to RickGoodman, 05-12-2005 18:44:17  
It works on the small blocks too. I've got a 206 that's bone-stock other than the cam advance in the R that I pull. It'll lug...



[Log in to Reply]  [No Email]
Rich B

05-14-2005 10:30:56




Report to Moderator
 Re: MM U advancing cam timing? why? what? in reply to Augie, 05-12-2005 19:58:44  
I have a smallblock I would like to try this trick on,what is the procedure? Do you move the cam gear or the crank gear?I'm gonna have the heads of in the next week or so,Figured that would be the time to do it,Thanks Rich



[Log in to Reply]  [No Email]
Rick Goodman

05-14-2005 17:49:00




Report to Moderator
 Re: MM U advancing cam timing? why? what? in reply to Rich B, 05-14-2005 10:30:56  
Remove waterpump and front cover, loosen the rockers so they wont move the cam when you take the gear off. line up the timing marks and i used a gear puller on the cam gear. pull it off ang turn the cam so it lines up one tooth over, and put the cam gear back on. make sure you go the right way.on my G i removed the radiator also to give me enough room to get to it



[Log in to Reply]  [No Email]
Augie

05-15-2005 16:39:47




Report to Moderator
 Re: MM U advancing cam timing? why? what? in reply to Rick Goodman, 05-14-2005 17:49:00  
You get at the cam by removing the rocker box covers and the crankcase side cover on a small-block. Rocker arms and cam bearing caps have to come off too.

Less than two hours work start to finish...



[Log in to Reply]  [No Email]
dlp

05-15-2005 05:44:39




Report to Moderator
 Re: MM U advancing cam timing? why? what? in reply to Rick Goodman, 05-14-2005 17:49:00  
turn cam which way? cw or ccw



[Log in to Reply]  [No Email]
Jake Winn

05-13-2005 15:11:30




Report to Moderator
 Re: MM U advancing cam timing? why? what? in reply to Augie, 05-12-2005 19:58:44  
Thanks for the info. I have a 52 UTE that I am in the process of tearing the engine down for a rebuild. It was stuck when I got it. I would like to try it in a tractor pull or two and was looking for some quick and easy ways to keep it stock and boost the power a bit. I have a set of GE30T heads, and was going to bore it .040 over. I also planned on putting an M5 lp manifold set on it. Not wanting to get to far from stock for antique only pulls. Thanks for the help fellas.

[Log in to Reply]  [No Email]
Augie

05-13-2005 22:39:27




Report to Moderator
 Re: MM U advancing cam timing? why? what? in reply to Jake Winn, 05-13-2005 15:11:30  
Check the link for MM cylinder head and tune-up specs.



[Log in to Reply]  [No Email]
[Options]  [Printer Friendly]  [Posting Help]  [Return to Forum]   [Log in to Reply]

Hop to:


TRACTOR PARTS TRACTOR MANUALS
We sell tractor parts!  We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]

Home  |  Forums


Copyright © 1997-2023 Yesterday's Tractor Co.

All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy

TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.

Yesterday's Tractors - Antique Tractor Headquarters

Website Accessibility Policy