Farm Equipment - Steel straight pipe

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Steel straight pipe

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=11305
Printed Date: 24 Jan 2025 at 3:31am
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Topic: Steel straight pipe

Posted By: Charlie175
Subject: Steel straight pipe
Date Posted: 20 Apr 2010 at 10:13am

I need this thing out of my B manifold!

Previous owner stuck in a steel pipe (Although he did cut the groove in it) but I can't get it out to put in a true B short pipe.

Any ideas so I don't mangle the original manifold? The pipe isn't rusted at all, but maybe they pounded it in...it's tight! I haven't soaked it yet though.

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Charlie

'48 B, '51 CA, '56 WD45 '61 D17, '63 D12, '65 D10 , '68 One-Ninety XTD

Replies:

Posted By: Leonard
Date Posted: 20 Apr 2010 at 10:17am

Try soaking it. Its probably rusted in the manifold.

Leonard

Posted By: ALinIL
Date Posted: 20 Apr 2010 at 1:15pm

C175 - If soaking don't get it. Try a pipe wrench to twist out. If that don't work, cut off flush with top of manifold. Use a plug chisel and peel it like a can. That should get it. Last resort is to use a dremel with a 0.030 cutting wheel. You just need to be persuavive. - AL

Posted By: Charlie175
Date Posted: 20 Apr 2010 at 1:34pm

I'm just afraid to bust the manifold....

I'll soak it and try the wrench, I just use it about everyday so it's hard to let it sit!

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Charlie

'48 B, '51 CA, '56 WD45 '61 D17, '63 D12, '65 D10 , '68 One-Ninety XTD

Posted By: Lonn
Date Posted: 20 Apr 2010 at 2:40pm

Torch. That'll cut befor the cast. You can cut it off and then cut down the inside to split it. Exhaust will blow out the mess.

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Posted By: Dick L
Date Posted: 20 Apr 2010 at 2:53pm

I would cut it off flush with the manifold with a hack saw and then use a hack saw blade with and end holder or a die grinder to get it if I didn't have an air hammer with a exhaust pipe cutting chisel.

I just cut one off an Oliver with the air hammer and it took all of three minutes or less if it is exhaust pipe and not well pipe. Mine was on the outside but the inside would go just as fast if it is exhaust pipe. If it is well pipe then the torch, die grinder or hack saw would be the way I would go.

Posted By: Dave H M
Date Posted: 20 Apr 2010 at 6:12pm

I would go Lonn's route first with the pipe cherry red at the base then let cool and try to twist it out.

I just don't have the nads to cut it out but I know a guy that does it all the time with 100% success for me.

Posted By: TMiller/NC
Date Posted: 20 Apr 2010 at 7:29pm

Cut pipe about 1/2 " above manifold and weld a bead around the inside of pipe, below top of manifold. The weld will shrink the pipe as it cools,,,, have used this method many times removing bearing races that were stuck in housings.

Posted By: DREAM
Date Posted: 20 Apr 2010 at 8:34pm

I like Tmillers' idea. If it's like mine, there's a lot of crusty rust between the manifold and the pipe. Welding a bead around the inside of the pipe will shrink it as it cools. This should break the rust loose as it goes, without getting the manifold too hot in one area and risking cracks. After it cools, take the pipe wrench and twist. It should come out. You may also try clamping a large pair of vise grips on the stub of exhaust pipe. You can then twist it side to side while tapping upward on the vise grips to gently ease it out.

Posted By: BrettPhillips
Date Posted: 20 Apr 2010 at 8:55pm

I'll second the vote for Tim's idea. It is probably the easiest and quickest, and poses little risk for manifold damage. Just try to avoid using 6010 or 5P electrodes unless you are careful/experienced.