Cylander Help!!

[eraser3469]

Hey all im running into some problems on my mp3. I have done a compression test because im losing oil quite often. on top of that my idle is really rough, and i feel like she is under powered. if my guage is right, from drivers side the compression reads: 160, 190, 190, 170.
is this normal.. could this be the reason she feels under powered?Any thoughts will e appreciated.

 

[tweety2300]

i would say your piston rings are bad. if its lost that much compression it could result in a loss of power and burn oil. i believe the manual says they shouldnt be more than 20 apart for each cylinder or somewhere in there. either way looks like you need a rebuild

 

[Maxx Mazda]

160 is a bit low.

 

[eraser3469]

could it be the head bolts.. i changed my head gasket last summer and re-used the old ones.. they may have been e-longated

 

[tweety2300]

Yes that could explain why the preassure on the outside cylinders are low and the middle ones are fine. I would say replace those and test it again