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Allis U block 318 UM
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51ACWD View Drop Down
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Joined: 24 Dec 2015
Location: United States
Points: 243 		Post Options Post Options   Thanks (0) Thanks(0)   Quote 51ACWD Quote  Post ReplyReply Direct Link To This Post Topic: Allis U block 318 UM
    Posted: 07 Apr 2018 at 4:16pm
Just wondering from all those who own U's. Does the carb side of the block have a slight bulge or is it perfectly flat? My '36 does. I've cleaned it to bare metal. Thoughts?
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SteveM C/IL View Drop Down
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Joined: 12 Sep 2009
Location: Shelbyville IL
Points: 8984 		Post Options Post Options   Thanks (0) Thanks(0)   Quote SteveM C/IL Quote  Post ReplyReply Direct Link To This Post Posted: 07 Apr 2018 at 9:10pm
I would guess that casting tolerances were not to critical back when.....who knows? I could look at my UC but it's up the road and it's dark out. LOL
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Joined: 30 Mar 2010
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Points: 1361 		Post Options Post Options   Thanks (0) Thanks(0)   Quote allisrutledge Quote  Post ReplyReply Direct Link To This Post Posted: 07 Apr 2018 at 9:56pm
That is the area that freezes and cracks . I will check mine tomorrow, I think they are straight. S cott
Allis Chalmers still exist in my mind and barns
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51ACWD View Drop Down
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Points: 243 		Post Options Post Options   Thanks (0) Thanks(0)   Quote 51ACWD Quote  Post ReplyReply Direct Link To This Post Posted: 08 Apr 2018 at 11:09am
Yep, I found the crack after I posted yesterday. Me, and the previous owner who is a great friend never knew about it. The block had been prepped for paint and was in primer. I did some scraping and found bondo, and underneath that, a crack that was sealed with JB weld. Not sure how to take it.

Edited by 51ACWD - 08 Apr 2018 at 11:57am
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PaulB View Drop Down
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Points: 5276 		Post Options Post Options   Thanks (0) Thanks(0)   Quote PaulB Quote  Post ReplyReply Direct Link To This Post Posted: 08 Apr 2018 at 11:50am
Lots of terrible things are sometimes hidden behind pretty paint.  Another case of "lipstick on a pig" That's always a terrible thing to find on something that you just brought.Angry
If it was fun to pull in LOW gear, I could have a John Deere.
Real pullers don't have speed limits.
If you can't make it GO... make it SHINY
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51ACWD View Drop Down
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Joined: 24 Dec 2015
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Points: 243 		Post Options Post Options   Thanks (0) Thanks(0)   Quote 51ACWD Quote  Post ReplyReply Direct Link To This Post Posted: 08 Apr 2018 at 11:59am
That's the thing. He owned it 5 or more years before I bought it, and I owned it for 3. We both had NO idea. No water in the oil (besides typical condensation) and no seeping. I'll probably fill it back in, or pin it. I'll stop drill it for good measure. Its ran great before with no issues
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Points: 620 		Post Options Post Options   Thanks (0) Thanks(0)   Quote everett048 Quote  Post ReplyReply Direct Link To This Post Posted: 08 Apr 2018 at 1:58pm
All ours are all flat castings.
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