Did a compression test tonight on 192.

[Boostdtalon]

Well the car does not smoke at first start, if it does it's very light. It normally doesn't start smoking till after I start driving. Call me paranoid but I would hate to put the new head on my car just for it to continue smoking.

Something else I was looking at. Going off the VFAQ site, the service limit is different between the GVR4 and a T/E/L. Now this is not the original engine. It was swapped in from a Laser.

 

[turbowop]

Quoting fuel:
A good indication of weak valve stem seals is smoke on first startup after sitting for a while as oil weeps down onto the back of the valve head.



Not really. In our engines the valve seals sit above the floor of the head, so the oil doesn't seep by when the car isn't running. It's mostly an issue at idle or during decel due to oil being slung around from windage and vacuum sucking it in past the seals. FWIW, back when I had really bad valve seal issues, it never smoked right at startup. Only after periods of idling.

 

So what does it mean when you get that big puff of white/grey smoke at startup that everyone thinks is the issue?

 

[turbowop]

I've actually never seen a 4g63 do that. Unless it was smoke from a super rich start up.

 

[thecman02]

Yeah when my valve seals were smoked. Idling was horrendous. I didn't get any smoke at start up either. The white smoke could just be condensation, and grey can be a mix of hydrocarbon (rich) and condensation burning. Just being optimistic though.

If your smoking problem isn't consistent I'd make sure your pcv setup was working correctly.

 

Quoting turbowop:
I've actually never seen a 4g63 do that. Unless it was smoke from a super rich start up.



Guess its a super rich startup or condensation I guess, it usually does it if the car has been sitting for a while goes
away after a few seconds though and yes I just replaced the pcv valve with a new one from mitsubishi. I may add one of
those inline check valves and a saikou michi catch can soon.
Thanks....