hello,

i am back to work on TRAMP and ran a compression check today.
can anyone tell me what i should be seeing or what "good readings" should be ?
i am paying hell finding any numbers....hours of surfing....oyva....

thx,

max

 

150 psi is great. 130 is livable. If you see cylinders under 100 psi, there are problems. BTW, what kind of Jaguar is TRAMP?

 

my apologies...i get ahead of myself..
Tramp is a 2005 XJR with 78k miles.
so..i have two compression testers from Horror Freight.
both are showing 170-180 on 7 of the cylinders and 200 on the 8th...struck me as odd but ok..

your thoughts ?

THANK YOU for your response !

 

Those are great readings. The pressures vary from cylinder to cylinder.
Indicates the valves are sealing and piston rings are in good shape.