Please bare with me, I'm a novice but enjoying myself!

After my recent thread asking what to do regarding my MY00 giving out blue smoke and having a misfire, I have done a compression test myself and got some results.

220psi across all four cylinders.

I have read it should ideally be higher even for a car of this age with 86k on the clock.

Where do I go next with my investigations?

Cheers, will the novice from Solihull.

 

220 psi x 4 is good, no worries there. Don't have an answer to your problems though.

 

So glad to hear that, tozerman! Thank you. So, oil is still being burnt somehow and I have a substantial misfire in the low down revs.

 

Valve stem oil seals?

Whip off the exhaust manifold, if the valves are soaked in oil, 99% certain that's valve stem oil seals.

 

Would that not give low compression readings? I love how you say 'whip' it off like its a 5 minute job haha. Cheers for the reply, will.

 

No worries.

No mate, that wouldn't alter readings, if it was worn valve seats that would.

Believe me, when you've owned an Astra 2.0 Turbo, the S2000 is a 5 minute job in comparison

 

Is your PCV working? Take it off and test it, its a lot quicker.

Put up a photo of your vacuum hose setup

 

It's a standard setup on a my00 joeh. I'm not sure how I 'test' the pcv? Please forgive my novice attitude towards our wonderful cars.

 

Clean off the oil with a tissue and blow through both sides.

One way should feel like its blocked the other way should blow through fine.

If both ways are blowing through, get a new one.

Sometimes the buildup of oil and minor debris can cause the PCV to be stuck open

If you have some carb cleaner, give it a spray

Joe

 

Right! Thank you, that's the next step towards diagnosis! I would love to find this is the issue and the misfire is a coil. Saves me alot of monies.