Shiny Spark Plugs???
#1
Shiny Spark Plugs???
OK so after a number of drives this year I noticed a slight engine stumble every now and again at idle and just off idle. It seems to be more pronounced when the engine is not at operating temp. The cap, rotor, plugs and wires all have less than 500kms on them.
So considering the episode I had last year with a broken intake rocker on cylinder #6 I figured I should probably do a compression check on the cylinders to get a better idea of what is happening inside the engine.
Here is what I found:
So considering the episode I had last year with a broken intake rocker on cylinder #6 I figured I should probably do a compression check on the cylinders to get a better idea of what is happening inside the engine.
Here is what I found:
- Cylinder # 1 135psi
- Cylinder # 2 130psi
- Cylinder # 3 135psi
- Cylinder # 4 125psi
- Cylinder # 5 100psi
- Cylinder # 6 135psi
- Cylinder # 7 135psi
- Cylinder # 8 110psi
#4
#6
Offence??? I took no offence!!! Your the one that made the lightbulb go off in my head!!! You were completely correct. That was the problem.
Thank you very much. Classic example of someone forgetting to check the simple things first.
Thank you very much. Classic example of someone forgetting to check the simple things first.
#8
#9
#12
#15
According to some other 425 threads on this site 130-135 is normal for this engine and mileage. That was also a dry test.
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bob p
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Mister
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