s2jerris

Recently did a compression check on my engine and my numbers came up to
200,190,150,200
The car seems to have lost some power also, it doesnt smoke at all but There is a misfire puf every now and then... any suggestion as to what the problem may be???

JDMProductions

Could be a multitude of things. More information would be helpful!!

s2jerris

Doesnt burn much oil, idles rough at times, dies at stops, leakdown test indicated a leak through the exhaust on cylinder 3

helloimsteve

There's definitely something wrong with cylinder 3. Usually +/-15-20 is acceptable. Not sure what may have caused it, but that's no bueno.

s2jerris

Could it be that it needs adjusting?

T-Smac

20% difference between the highest cylinder and lowest cylinder is the most you want. You have 25%. Coming from the exhaust means you have defective exhaust valves. They could be burnt exhaust valves (specifically cyl 3) or possibly worn springs (once again cyl 3)

s2jerris

How can you tell if the valve is burnt or the spring is worn?

T-Smac

Pulling the head off and inspecting them. More likely cause would be burnt valve

s2jerris

Damn that means i gotta park my car for a few days haha

jh4db536

Might be bent valves? Was the car ever overreved?

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