Farm Equipment - 7040 engine oil cooler reseal

Print Page | Close Window

7040 engine oil cooler reseal

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=198429
Printed Date: 12 Nov 2024 at 1:44am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: 7040 engine oil cooler reseal

Posted By: DIESEL
Subject: 7040 engine oil cooler reseal
Date Posted: 28 Nov 2023 at 2:01am

Oil cooler on my 7040 needs re-sealed, can the inner tubes be tapped out with a block of wood without damaging them, I don't have a press. First time messing with one of these, thanks.

Replies:

Posted By: DrAllis
Date Posted: 28 Nov 2023 at 2:48am

Yes. We always had a 4 x 4 block re-shaped to slide in and be the pusher against the cooler core.

Posted By: AllisFreak MN
Date Posted: 28 Nov 2023 at 6:22pm

Doc what all is needed as far as parts to complete this job?

-------------
'49 A-C WD, '51 A-C WD, '63 A-C D17 Series III, 1968 A-C One-Seventy, '82 A-C 6060, '75 A-C 7040, A-C #3 sickle mower, 2 A-C 701 wagons, '78 Gleaner M2

Posted By: Lynn Marshall
Date Posted: 28 Nov 2023 at 6:55pm

O rings and gaskets. Not much involved here. The cooler o rings are specific as to water side or oil side of the cooler.

Posted By: Michael V (NM)
Date Posted: 28 Nov 2023 at 8:10pm

I done this on my 7060 few years back. a search of my stuff might bring it up

I think the main thing is to put the o-rings in the right place

Posted By: tbran
Date Posted: 28 Nov 2023 at 8:32pm

the block and cooler mating surface must be squeaky clean with a non silicone gasket sealer. That is the biggest challenge we have had.

-------------
When told "it's not the money,it's the principle", remember, it's always the money..

Posted By: I M Fedup
Date Posted: 28 Nov 2023 at 9:50pm

Assemble everything loosely, and don't tighten any bolts until it's all together on the engine. Then tighten them down a little at a time, working your way around from gasket to gasket.

Posted By: DIESEL
Date Posted: 04 Dec 2023 at 9:13pm

Is it better to glue the gasket to the engine block or the cooler, on reassembly? Thanks

Posted By: SteveM C/IL
Date Posted: 05 Dec 2023 at 8:06am

Don't know about better...I glued gasket to cooler

Posted By: DIESEL
Date Posted: 05 Dec 2023 at 12:16pm

Thanks Steve, that's what I was leaning towards,Tbran mentioned having difficulty with this seal leaking, I didn't know if one was better than the other

Posted By: SteveM C/IL
Date Posted: 05 Dec 2023 at 7:39pm

I figured it may be harder to seal the slick aluminum over the cast iron block so I put the sealer there.