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Compreshion Check
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- 5+ Years
- Posts: 2
- Joined: Mon Jun 09, 2014 12:49 pm
- Zip Code: 61548
Compreshion Check
Scuzzy here, Been away for Years on a Cub-Had a LowBoy 25 Years ago n going to look at one in an hour or so, Need to know What Kinda Compreshion My Gage should show on a Fair Engine? My old LowBoy was a Great Tractor but Devorce n a Jap Crap has kept me away! Just don't want to Jump too Quickly! Anything elce I should Check? Thanks in advance! Scuzz
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- 10+ Years
- Posts: 205
- Joined: Wed Jul 11, 2007 8:37 am
- Zip Code: 06234
- Location: CT. Brooklyn
Re: Compreshion Check
Should be in the 110-125psi range if its a good health engine. If your below 90-100psi you may notice power loss and hard starting. One other to bear in mind is that you want the readings to be with in 10% of each other. thus if you have one cylinder with 80psi and another with 120psi that would also be a negative.
I would do both a dry and wet test to confirm.
Andrew
I would do both a dry and wet test to confirm.
Andrew
49 Cub, and many other Farmalls and one Orange critter
This is Farmall Country!!
This is Farmall Country!!
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- 5+ Years
- Posts: 2
- Joined: Mon Jun 09, 2014 12:49 pm
- Zip Code: 61548
Re: Compreshion Check
Thanks for the Info, I knew they were to be Consistant but had no Idia about the Readings! Know its a 7.5 to 1 Compreshion Ratio But had no Idia what to look for on a Gage-was Figuring 80 to 100! Thanks agin! Scuzz
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- Cub Pro
- Posts: 23701
- Joined: Sun Feb 02, 2003 2:09 pm
- Zip Code: 63664
- Tractors Owned: 47, 48, 49 cub plus Wagner loader & other attachments. 41 Farmall H.
- Location: Mo, Potosi
Re: Compreshion Check
110-125 would be what to expect on a newly rebuilt engine, one that has a lot of hours will be lower.
If you are not part of the solution,
you are part of the problem!!!
you are part of the problem!!!
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