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WC compression test.
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Beinepw#69 View Drop Down
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Joined: 04 Aug 2020
Location: Wisconsin
Points: 16 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Beinepw#69 Quote  Post ReplyReply Direct Link To This Post Topic: WC compression test.
    Posted: 06 Aug 2020 at 9:00am
How do I do an engine compression test on a WC that has only a hand crank an no electrical system?
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Acdiesel View Drop Down
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Joined: 15 Jun 2012
Location: Rochester Ohio
Points: 2574 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Acdiesel Quote  Post ReplyReply Direct Link To This Post Posted: 06 Aug 2020 at 10:47am
make sure you have a compression tester that threads into the spark plug hole.
if you pull all four plugs, have the throttle wide open and give it a few good hard pulls with the hand crank that is one way.

Or you could pull one plug at a time and just start the engine and check them all that way.

Dan 


Edited by Acdiesel - 06 Aug 2020 at 9:12pm
D19 Diesel,D17 Diesel SER.3
2-D14, 2-D15 SER.II WF/NF
D15 SER.2 DIESEL
D12 SER.I, D10 Ser.II
2-720'S D21 Ser. II

Gmc,caterpillar
I'm a pharmacist (farm assist) with a PHD (post hole digger)
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Rusty Allis View Drop Down
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Joined: 16 Jul 2020
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Points: 160 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Rusty Allis Quote  Post ReplyReply Direct Link To This Post Posted: 06 Aug 2020 at 11:29am
I think I would drag it around the yard in 2nd or 3rd gear with the compression tester screwed into it
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Boss Man View Drop Down
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Joined: 03 Mar 2018
Location: Greenleaf, WI
Points: 617 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Boss Man Quote  Post ReplyReply Direct Link To This Post Posted: 06 Aug 2020 at 3:44pm
could belt it to another tractor 
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DrAllis View Drop Down
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Joined: 12 Sep 2009
Points: 21746 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 06 Aug 2020 at 6:40pm
All spark plugs removed. Throttle wide open. Pull it in 4th gear so the tester pumps at least 10 times. Switch to the next cylinder.
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Joined: 19 Jan 2010
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Points: 11718 		Post Options Post Options   Thanks (0) Thanks(0)   Quote TramwayGuy Quote  Post ReplyReply Direct Link To This Post Posted: 06 Aug 2020 at 9:15pm
Most compression testers have a check valve to hold the highest pressure achieved.
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