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Allis b "soft seizes" but not overheating?
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Pengineer View Drop Down
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Joined: 3 hours 13 minutes ago
Location: Colorado
Points: 2 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Pengineer Quote  Post ReplyReply Direct Link To This Post Topic: Allis b "soft seizes" but not overheating?
    Posted: 2 hours 42 minutes ago at 10:14pm
Brand new member, my 1st tractor, a 40s era model b with front end loader. I finally got the seized engine broken loose and running well but periodically it tries to seize up while running. It stalls the engine and sometimes is hard to turn over but after a few minutes starts and runs well again. I'm reading good oil pressure and cool engine temp. I've had the head off numerous times and tried to blow out all the oil and coolant passages.. Any ideas for me??
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SteveM C/IL View Drop Down
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Joined: 12 Sep 2009
Location: Shelbyville IL
Points: 9260 		Post Options Post Options   Thanks (0) Thanks(0)   Quote SteveM C/IL Quote  Post ReplyReply Direct Link To This Post Posted: 2 hours 11 minutes ago at 10:45pm
I would bet you have corrosion  on outsides of piston that takes up wall clearance. You said it "was" stuck. Unstuck and clean are two different things. Pull the head again and knock the pistons out to ensure all is well. Bet you find your answer.
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john2189 View Drop Down
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Joined: 11 Sep 2009
Location: Minerva,Ohio
Points: 504 		Post Options Post Options   Thanks (0) Thanks(0)   Quote john2189 Quote  Post ReplyReply Direct Link To This Post Posted: 40 minutes ago at 12:16am
My B would do that, i cleaned the cooling system many times I found out that the thermostat was broken and blocking the passage.
'41 Allis B
'49 Farmall Cub
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