Technical Compression Pressures?

[biggelmo]

Can anyone tell me what the cold cranking compression pressure is for a standard 1242cc.P75.

 

[dirtyhands]

http://www.aa1car.com/library/compression.htm
hope that helps

 

[Weebl]

Those numbers seems good. I got between 10,5 and 11 bar when I tested my engine.

 

[dumbledore]

I got around 14 par, or 200 psi on a 1242 P60 engine and that when the head gasket died. I removed all spark plugs, disconnected the crank sensor and kept the battery charged. This ways the engine has good speed to generate good pressure.

 

[Ziggy122]

Again on the mk2 punto engines i had i got the following

CYl 1 Dry 100psi
CYL 2+3+4 = 200psi DRY

Cyl 1 Wet = 200PSI

meant piston rings had gone
the Head and pistons crown were badly carboned up


Donor engine fitted - 170PSI dry all around - 170/175 PSI wet all around
So as long as there all roughly the same 150psi+ i would have thought u'd be okay

If any jump up alot when wet - it gets messy....

Ziggy