My Compression numbers are all even at 270 psi across the board (JDm ITR engine) my question is can I have a blown headgasket and perfect compression. My car needed some coolant thats why i was asking. Engine has never overheated

 

Yes. Leakdown would be a better tool to diagnose a blown headgasket.

Warren

 

thanx for the reply

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Warren &raquo;</TD></TR><TR><TD CLASS="quote">Yes. Leakdown would be a better tool to diagnose a blown headgasket.

Warren</TD></TR></TABLE>

Warren, could you explain more about the leakdown. The only leakdown I've ever seen is with the Leakdown test to see if your valves out of spec. ie: bent/stretched.

Thanks,

Len

 

Well, if the cylinder is pressurized, and your coolant overflow bottle is bubbling, well, that's bad.

Just listen for the leaking air. It's gotta go somewhere.

Also, look in your valve cover. Is it all milky looking?

Warren

 

You can also buy a fluid head gasket tester at your local auto parts store. You put it on the neck of the radiator, and if the blue fluid turns yellow or green, the head gasket is leaking. It's called a "block tester".

 

i pulled the valve cover off and there is no milky residue.