Low compression on 2,3,4

[MattG]

any ideas ? they are running rich , and are a good 60 odd psi down on no 1 .

added oil into the cylinder and compression test did not show any difference.

head gasket ???

Matt

[mininut]

Head gasket or stuffed head, either way it needs to come off. Is there a lot of pressure in the cooling system??

Did you put new ring in when you built it??? if so, did you ensure that the ring gaps were evenly spaced around the piston??


What other checks have you done??

M.

[MattG]

its looking like TB's balancing at the mo ... as i did not do the comp test with the throttle wide open , when i did the psi went off the scale

will let you know more tommorow

Matt