Question: Compression Test

[berry1133@bellsouth.net]

Hey guys. I did a cylinder compression test and here are the results:
Cyl1: 120 psi
Cyl2: 115
Cyl3: 115
Cyl4: 117
Cyl5: 115
Cyl6: 114
Cyl7: 114
Cyl8: 117

I did a compression test just to see if there were any outliers. Has anyone else done this and, are my results similiar? Any comments on the results would be appreciated.

BBerrr

 

[Peer81]

I had it done about 9 years ago (before the body off). I know the number all were about the same but don't know how much. I'll look it up on monday if I don't forget. But the compression test stated the engine was in a good condition but that said nothing about the condition the crankshaft bearing were in

Greetings Peter

 

[Hib Halverson]

A general rule for compression tests is the lowest compression number within 5% of the highest. With a high of 120 and a low of 114, you're right at the bottom of the range so, you passed your compression test.

 

[berry1133@bellsouth.net]

Wheeee. Reminds me of school.

BBerry

 

[LLC5]

Hey guys. I did a cylinder compression test and here are the results:
Cyl1: 120 psi
Cyl2: 115
Cyl3: 115
Cyl4: 117
Cyl5: 115
Cyl6: 114
Cyl7: 114
Cyl8: 117

I did a compression test just to see if there were any outliers. Has anyone else done this and, are my results similiar? Any comments on the results would be appreciated.

BBerrr

Was the engine cold or hot when you did the compression test?

 

[berry1133@bellsouth.net]

The engine was cold.