40 140 70 150

i dont know what to do. mabe head gasket? just bought the damn thing.

 

Moved to turbo forum

Could be a bad valve. Is this cold or hot engine? Try putting a little oil in the low cylinders and see if that fixes it. Could also be the HG.

 

Study harder next time.

 

lame lol

 

If its a turbo motor, maybe it was overboosted and it has bad rings in those two cylinders. Prolly not though just cuz with over boosting all the cylinders usually have the same low reading. Like Hyjynx said, might be bad valves. Put a layer of liquid soap around the head gasket and manually crank the motor, if you see bubbles, its the head gasket.

 

try again next semester

 

wtf?


i was told it isnt a HG becuase the cylinders that have low comp. would be side by side.

i'll mess with it some later today.

 

it can be a combination of things......think aboot it, what is the area that is being compressed? Now, where can that compression go to if its not being contained....either up or down. Going up would cause it to be a bad hg or down would give you blow by/bad rings/broken ringlands/etc.

 

Or it could be caused by a valve problem. A valve could be heat damaged or have heavy carbon deposits on it.