s4r compression test

[chris yeatman]

looking to do a compression test on the s4r.
does anyone know wot figures a compression test should read on it.
reason for wanting to check this is i think valve clearences need doing.
cheers
chris

[Rally]

Chris,
Usually about 150 psi for a petrol engine. It will vary depending on the compression ratio of which I don't know for the S4R, but if it is over 100psi, the valves are obviously seated okay.

[chris yeatman]

cheers mate, thats about wot i was thinking they should be.