compression Test Results

[Moncha]

Actually for 260k km that looks pretty clean! Not very much carbon build up at all, at least on the head.

Depending on what the valve seat shows, I'd say bad valve. If the seat has a chinger in it, then maybe foreign object. Maybe a chunk of carbon. What's the top of the pistons/cylinder look like? Was the ring intact?

After looking at it more; looks like incomplete burn or oil build up.

What did the spark plug look like? was the electrode intact?

What's that cylinder look like?

Did the gasket survive enough to take pics?

[FuddyMucker]

Spark plug was intact and looked ok
Piston rings look ok and have standard slack.
Head Gasket shows no sign of leaking (but I will replace it anyway).

Thank goodness the chip of valve got blown out of the engine and didn't fall back in to the cylinder (the cylinder wall also looks good for 260,000)

[VX crazy]

can you give us a tad more info, what made you get the compression test done, how was it running etc....

[FuddyMucker]

It was running Rough, it wouldn't idle but would hunt between 550 to 1200 rpm
noticable lack of power (more so at low revs).
This was one of the last checks I did after replacing the sparkplugs, checking the MAP sensor, checking the MAF sensor, checking each coil pack, checking the fuel pressure in the line, looking into the EGR system, checking for water in the oil, checking for oil in the water ect...
Put it this way, it didn't seem like a compression issue but I was running out of other things it could be.

[VX crazy]

It was running Rough, it wouldn't idle but would hunt between 550 to 1200 rpm
noticable lack of power (more so at low revs).
This was one of the last checks I did after replacing the sparkplugs, checking the MAP sensor, checking the MAF sensor, checking each coil pack, checking the fuel pressure in the line, looking into the EGR system, checking for water in the oil, checking for oil in the water ect...
Put it this way, it didn't seem like a compression issue but I was running out of other things it could be.

Great.....mine rough idles sometimes...not all the time, today was just perfect running......I need to clean my EGR too.