My mate has now not got internet and asked me to post this.

 

His zed when warm is running 145 on compression test on all cylinders bar one. One of them reads 120. Hes put oil down to prove piston rings are worn but he wants to know how serious a reading of 120 is?

 

Thanks

Shouldn't normal be around 160-ish??

 

Sorry, I don't know for sure but there has been a thread about this recently.

 

Richard :confused:

if it had gone it would be under 100

 

Mine was about 80 when i blew a piston!!

 

Kirbz

183 psi is perfect

 

Min of 140 with no more than 14psi difference between pistons if I remembe correctly.

...if I remembe correctly.

 

But whats the chances of that? :D:D:D;)

But whats the chances of that? :D:D:D;)

 

 

Probably the same chance of you making an engine which doesnt blow up as soon as you use it or have the cam belt snap hours after finishing a rebuild

whens yours ready stu, seems to be taking along time bud??

 

Mike