Noz Posted May 15, 2020 Share Posted May 15, 2020 Had a spirited drive and now after tick over for a short time I begin getting quite a lot of blue smoke. Now. That tells me oil. But I'm after driving a short distance home and it going away. I'm uncertain why it only happens when I'm at idle. Then it vanishes. Any ideas? I'm stood now it on idle and waiting. Nothings coming out (just moved it from driving back). Intermittent blue smoke on idle? I'm confuzzled. Drove fine. Oil pressure ok. I'll check the engine over tomorrow when its light. For now. Experience welcomed. Quote Link to comment Share on other sites More sharing options...
rider Posted May 15, 2020 Share Posted May 15, 2020 (edited) PCV valve stuck/sticking? I had that once on one of my ancient cars that occasionally give a gulp of oily smoke out of the exhaust until I fitted a new PCV. Edited May 15, 2020 by rider (see edit history) Quote Link to comment Share on other sites More sharing options...
Noz Posted May 15, 2020 Author Share Posted May 15, 2020 PCV? I'm NAt single turbo. Quote Link to comment Share on other sites More sharing options...
Swampy442 Posted May 15, 2020 Share Posted May 15, 2020 Turbo oil drain? Quote Link to comment Share on other sites More sharing options...
Noz Posted May 15, 2020 Author Share Posted May 15, 2020 Turbo oil drain? Not sure what you mean buddy. Quote Link to comment Share on other sites More sharing options...
jza800 Posted May 15, 2020 Share Posted May 15, 2020 Had a spirited drive and now after tick over for a short time I begin getting quite a lot of blue smoke. Now. That tells me oil. But I'm after driving a short distance home and it going away. I'm uncertain why it only happens when I'm at idle. Then it vanishes. Any ideas? I'm stood now it on idle and waiting. Nothings coming out (just moved it from driving back). Intermittent blue smoke on idle? I'm confuzzled. Drove fine. Oil pressure ok. I'll check the engine over tomorrow when its light. For now. Experience welcomed. check you spark plugs, can be bad valve seals.. what oil pressure do you have? Quote Link to comment Share on other sites More sharing options...
Noz Posted May 15, 2020 Author Share Posted May 15, 2020 5 bar ish. Valve seals keeps coming up in multiple searches online. Just curious how valve seals are to blame from a leak during idle. Anti lag doesnt help the turbo I know but that would surely be a constant smoking rather than just at low rpm Quote Link to comment Share on other sites More sharing options...
Swampy442 Posted May 15, 2020 Share Posted May 15, 2020 Not sure what you mean buddy. The turbo oil drain is not big enough to drain the oil away Quote Link to comment Share on other sites More sharing options...
Mike2JZ Posted May 15, 2020 Share Posted May 15, 2020 I've had similar in the past with an old engine of mine that had "meh" cylinder ring seal. Noticed it whilst idling after beating the crap out of it on a dyno for a bit and got it nice and hot. If smoke is blue then its burning inside combustion chamber, so it can only be rings on the way out or oil being pulled from the head. White smoke that smells foul would be oil burning on exhaust wheel of turbo. Get a compression & leakdown test and that should indicate any issues with cylinder sealing. Quote Link to comment Share on other sites More sharing options...
Noz Posted May 16, 2020 Author Share Posted May 16, 2020 Thanks for the feedback everyone. Cheers mike I'll get a compression test done and take it from there. Out of curiosity. Can the valve seals be done with the head still on the car? Quote Link to comment Share on other sites More sharing options...
mellonman Posted May 16, 2020 Share Posted May 16, 2020 They can their is a thread somewhere where you put rope in the cylinder and then compress it to stop the valves falling into the cylinders Quote Link to comment Share on other sites More sharing options...
Noz Posted May 16, 2020 Author Share Posted May 16, 2020 They can their is a thread somewhere where you put rope in the cylinder and then compress it to stop the valves falling into the cylinders To honest mate I wouldn't even want to risk it. Maybe this is a good excuse to upgrade the cams? Quote Link to comment Share on other sites More sharing options...
ripped_fear Posted May 16, 2020 Share Posted May 16, 2020 The exact symptoms mine had when the valve stem seals were due. Only happened when the car had been ideling and then i would blip the throttle and it would give a good puff of smoke. Changed the seals and perfect. However i haven't heard of a ge engine needing VSS doing, maybe the addition of your turbo has heated them up and they just couldnt take the extra heat. Quote Link to comment Share on other sites More sharing options...
Noz Posted May 17, 2020 Author Share Posted May 17, 2020 Well, 600hp on a GE engine is likely to raise some not so typical wear and tear I suppose. I'm glad you've had a similar issue. I was worried it was a turbo seal or bottom end issue. Or head off situation. But I can live with VSS being done. I think anyone having head and valve work done should consider upgrading their stem seals for higher temperature ones. Considering it's clearly something that can go. Though I'm beating myself up over it, who owns a single turbo and not enjoy the power every now and then. Quote Link to comment Share on other sites More sharing options...
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