Compression check

Farmall Super A, AV, 100, 130, & 140 1939 - 1973

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Dusty B
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Compression check

Postby Dusty B » Wed Jun 02, 2021 7:21 am

:? Finally got around to doing a compression check on the A! 90# dry, 120# wet on 3 cylinders, 0# on cylinder # 1!! Hope it’s as minor as a stuck valve!!! :shock: other possibilities??
Grandpa's '41 B
'56,,'57,'59, Cu'b
'45 C
'55 Case S
Dad's DB garden tractor
'48 DeSoto
'31 "A Coup
'79 Lincoln TC
God looks out for those of us who don't know how to look out for ourselves!

tst
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Re: Compression check

Postby tst » Wed Jun 02, 2021 7:37 am

pull the valve cover make sure the valves go up and down, seen many of these with bent pushrods

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Dusty B
10+ Years
10+ Years
Posts: 1775
Joined: Wed May 23, 2007 7:35 am
Zip Code: 61736
Tractors Owned: '45 SC Case
Circle of Safety: Y
Location: IL, Downs

Re: Compression check

Postby Dusty B » Mon Jun 28, 2021 2:22 pm

stuck valve 90/120 # like the other 3!! fired up- need to verify timing!
Grandpa's '41 B
'56,,'57,'59, Cu'b
'45 C
'55 Case S
Dad's DB garden tractor
'48 DeSoto
'31 "A Coup
'79 Lincoln TC
God looks out for those of us who don't know how to look out for ourselves!

getitrunning
Posts: 26
Joined: Wed Jun 16, 2021 5:41 pm
Zip Code: 37881
Tractors Owned: Farmall Cub 1949
super A
Yanmar 1500D
Belarus 525
Ford 4000 1962 Diesel
Gravely L
Location: East TN

Re: Compression check

Postby getitrunning » Fri Jul 02, 2021 5:14 pm

how would timing effect compression if your getting good compression on 3 cylinders?

Eugene
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Re: Compression check

Postby Eugene » Fri Jul 02, 2021 8:16 pm

He is going to double check the ignition timing. Ignition timing does not affect compression.
I have an excuse. CRS.


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