182 182 185 90 compression my second engine blown ?

S

skprod

New Member
Hi,

is there any issue with the gtir cylinder 4 ?
(the cylinder near distributor)

I got two engine, and both have the same compression on this one ! about 180psi on each others, and 90psi on the last one.

At the last check up, coolant was okay , oil too, so i espect something to do with valve or rockerarm ?
i did not rebuild my first engine with that compression due to the milage i decided to change the motor... but now, i got two block with the same prob.

Do someone already had this prob??

Thanks
 
J

jambo_gtir

Member
That is the furthest cylinder from the water pump so by the time the coolant reaches that part of the engine it's at its hottest. I think most head-gasket failures are in this region due to this problem (on all types of engines).
My mate had similar compression probs on his engine...... a few months later the head-gasket went.
In your case, could be worn rings or worn valve seals. Or the head gasket slowly on it's way out?
 
red reading

red reading

Active Member
Or a injector fault to do the same on both engines, and the hotest cylinder is not 4 the coolent does not flow the way you think.
 
Trip

Trip

New Member
even a non existing spark on Cyl4 will cause damage if the old ignition system was used.
 
You must log in or register to reply here.
Top