mekemelorry Posted April 13, 2012 Share Posted April 13, 2012 After a bit of help in regards to whats causing it to smoke, its in a 97 GSR lancer I get blue smoke from the exhaust after it has been idling for a few minutes and i go to take off. No smoke when idling, only when you touch the accelerator , Doesn't smoke when your up and running , and short stops and starts (traffic lights etc) Have done a oil flush and change + filter Turbo has been serviced so its not that Im thinking Rings or valve stem seals? Any help/known problems or further testing suggestions I could try would be great Thanks in advance Quote Link to comment Share on other sites More sharing options...
Taistorm Posted April 14, 2012 Share Posted April 14, 2012 Do a compression test mate. Quote Link to comment Share on other sites More sharing options...
macd0g Posted April 14, 2012 Share Posted April 14, 2012 Sounds like valve stem seals to me... Had the same thing in an old mitzi of mine Also had another Mitzi with buggered rings, and that smoked all the time, so the symptoms don't sound like that Quote Link to comment Share on other sites More sharing options...
kyteler Posted April 14, 2012 Share Posted April 14, 2012 Definitely sounds like valve stem seals, strange though that it's not factory mitsubishi oil control ring smoke... Quote Link to comment Share on other sites More sharing options...
fuel Posted April 14, 2012 Share Posted April 14, 2012 4G93s (like the newer generation 6A1x, 4A3x, 4B1x, 6B3x etc) are generally good for not smoking, it's the older 4G6x, 4G3x, 4G1x, 6G7x, 4G5x etc which tend to have softer rings and therefore smoke early on. I would gather it's probably valve stem seals or the rebuild of the turbo (really, what was involved in this 'service'?) causinig the smoke. You should be using a 5W40 or 10W40 or similar semi-synthetic or full-synthetic oil. Quote Link to comment Share on other sites More sharing options...
mekemelorry Posted April 14, 2012 Author Share Posted April 14, 2012 4G93s (like the newer generation 6A1x, 4A3x, 4B1x, 6B3x etc) are generally good for not smoking, it's the older 4G6x, 4G3x, 4G1x, 6G7x, 4G5x etc which tend to have softer rings and therefore smoke early on. I would gather it's probably valve stem seals or the rebuild of the turbo (really, what was involved in this 'service'?) causinig the smoke. You should be using a 5W40 or 10W40 or similar semi-synthetic or full-synthetic oil. The turbo was rebuilt by AutoKraft in Palmy, so Im crossing my fingers thats its valve stem seals (supposibly you can change them with head still on) I have a 10w40 Caltex oil in it. Quote Link to comment Share on other sites More sharing options...
mekemelorry Posted April 14, 2012 Author Share Posted April 14, 2012 Do a compression test mate. Ive been told a compression test isn't going to tell me alot, as it would be the oil control rings worn, and they wouldnt affect the compression much? Quote Link to comment Share on other sites More sharing options...
fulloc Posted April 14, 2012 Share Posted April 14, 2012 running some engine flush through could help if the oil rings are stuck. you'll need a specific tool to get the stem seals off with the head on. ive heard you can cut a spark plug and weld an airline fiting to it. then you can pump compresed air into the cylinder and keep the valves from dropping down. i had the same prob with a 4age, in the end i just pulled it apart, its probably gonna happen anyway... Quote Link to comment Share on other sites More sharing options...
mekemelorry Posted April 25, 2012 Author Share Posted April 25, 2012 For future reference, its was the valve stem seals, Easy job, even without removing head. Quote Link to comment Share on other sites More sharing options...
Ogre Posted April 26, 2012 Share Posted April 26, 2012 Caltex is shit oil and alot of mitsis will eat and smoke that shit.Go for shell mobil or total in the future Quote Link to comment Share on other sites More sharing options...
Simon Posted April 26, 2012 Share Posted April 26, 2012 The turbo was rebuilt by AutoKraft in Palmy Ohh mate. Won't be the turbo then Quote Link to comment Share on other sites More sharing options...
QCADTA Posted April 26, 2012 Share Posted April 26, 2012 done them on a nissan with head in place, took plugs out, feed nylon rope in cylinder i was doin and spun crank with socket till i felt the piston push rope up against valves to hold them in place. then self expiainatry from there. Quote Link to comment Share on other sites More sharing options...
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