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301 diesel cranking compression
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PaulSamwel View Drop Down
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Joined: 18 hours 47 minutes ago
Location: washinton
Points: 2 		Post Options Post Options   Thanks (0) Thanks(0)   Quote PaulSamwel Quote  Post ReplyReply Direct Link To This Post Topic: 301 diesel cranking compression
    Posted: 18 hours 25 minutes ago at 4:00pm
What would be acceptable cranking compression for a cold 301 diesel engine?Thanks.
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injpumpEd View Drop Down
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Joined: 13 Sep 2009
Location: Walnut IL
Points: 5171 		Post Options Post Options   Thanks (1) Thanks(1)   Quote injpumpEd Quote  Post ReplyReply Direct Link To This Post Posted: 17 hours 16 minutes ago at 5:09pm
Most diesel engines need at least 300 psi, but 350-400 psi is better. AC procedure was to check it with engine running, which I feel is unnecessary, as long as you have all injectors out and good cranking starter/batteries, with a charger hooked up while doing it. 
210 "too hot to farm" puller, part of the "insane pumpkin posse". Owner of Guenther Heritage Diesel, specializing in fuel injection systems on heritage era tractors. stock rebuilds to all out pullers!
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DrAllis View Drop Down
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Joined: 12 Sep 2009
Points: 22428 		Post Options Post Options   Thanks (1) Thanks(1)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 17 hours 4 minutes ago at 5:21pm
We've checked several over the years and with a good starter (Lucas is questionable) and all injectors removed and a battery charger on the 2 batteries, you'll wind up with 350 to 375 psi. I never saw one hit 400 but maybe at a fresh OH they might.
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