Farm Equipment - lets play guess whats wrong!

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lets play guess whats wrong!

Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=41732
Printed Date: 29 Aug 2025 at 12:21am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: lets play guess whats wrong!

Posted By: Brad(WI)
Subject: lets play guess whats wrong!
Date Posted: 06 Dec 2011 at 5:00pm

I have a 704560 (front half 7045, rear half 7060 ps). Neither had run in maybe 3 years, so I spliced them together. 7045 ran great when parked, and 60 had strong trans. When I put them together, it didn't run as well. I used it to pull an irrigation rig to the field and back, then to another farm. It had a bad miss, and a lot of white smoke, I assumed from the missing cylinder. I drained the fuel and replaced with fresh with a injector cleaner. Still ran poor. I assumed a bad injector or two, so I replaced those. Still just as bad.

Now for your guesses. I found out the problem today (I think!). It is not fuel related.

Remember:

1)ran when parked! we have all heard that, but I am the one who parked it.

2)Sat for around 3 years

3)We also have a 7030, 8050, and I had a D21 puller at that time.

Replies:

Posted By: Gary in da UP
Date Posted: 06 Dec 2011 at 5:13pm

I think the air cleaner was full of mouse nesting material.

Posted By: R.W
Date Posted: 06 Dec 2011 at 5:15pm

Pluged up air filter from mouse nest?

Posted By: R.W
Date Posted: 06 Dec 2011 at 5:15pm

Gary beat me too it.

Posted By: Brad(WI)
Date Posted: 06 Dec 2011 at 6:00pm

neither one, keep trying.

Posted By: Gerald J.
Date Posted: 06 Dec 2011 at 6:04pm

Mouse nest in the pump causing bad injection in at least one cylinder accompanied by an injector line leaking from having almost rusted through due to another mouse nest.

Gerald J.

Posted By: captaindana
Date Posted: 06 Dec 2011 at 6:25pm

C'mon guys the answer must lie behind clue #3! lol can't take the suspense!

Posted By: Brad(WI)
Date Posted: 06 Dec 2011 at 6:27pm

Getting warmer, captaindana!

Posted By: ACscott
Date Posted: 06 Dec 2011 at 6:29pm

mixed up parts from the other tractors and put them on this one?? actually maybe not but thats all I could get from clue #3, after I posted this I remembered they all had the 426.

Posted By: 79fordblake
Date Posted: 06 Dec 2011 at 6:37pm

Somebody put a CaseIH decal on it?? lol

Posted By: Brad(WI)
Date Posted: 06 Dec 2011 at 8:00pm

When I started it after the new injectors, I had to crack the lines. That's when I heard the louder than normal valves. One must have had extra clearance I figured. Today I took off the valve cover, put the engine at TDC and wiggled the rockers. I didn't have my manual there, or a feeler guage, but thought I would be able to feel one that made that much noise. I sure did. One lifter had excessive play, mostly due to A MISSING PUSH ROD! I remember bending one on a tractor once (I think the puller), this must be where the replacement came from! I actually think I borrowed it from the 7030, as that tractor is never used. When to 7045 went down, I maybe took it from this tractor to replace the 7030's. Not sure exactly how it went missing, but it sure is gone. I bet it will have a little more power now.

Posted By: Allen Dilg
Date Posted: 06 Dec 2011 at 8:36pm

Hello Brad Simiular case. Went to a sale looked at a newer B very good looking tractor and mounted plow started good but had a definite miss figured that someone moved the spark plug wire, long story, bought it brought it home and told my son to make it run, he said the electric was correct but #3 wasn't firing , bent push rod, had one on shelf runs great still a good buy at $800