Valve seal? But would not be temporary. - Saab 9-5 Bulletin Board - Saabnet.com
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Valve seal? But would not be temporary.
Posted by LesH [Email] (more from LesH) on Sun, 10 Jan 2010 16:53:19
In Reply to: If not Turbo, what else gives temporary blue smoke?, RegQ, Sun, 10 Jan 2010 16:13:58
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Old GM small block V8s are famous for bad valve seals - the oil from the head can drain into the intake manifold and dump into the cylinders at start, causing a nice cloud of blue. I had a 305 V8 that did this. But it was pretty dependable to see the blue cloud in certain starting conditions.
My Corvair turbo would blow a blue cloud on startup if it was parked at an angle that let oil drain into a cylinder... never did figure out which cylinder was causing the trouble.
Leave it alone and see if it ever comes back...
Posts in this Thread:
- If not Turbo, what else gives temporary blue smoke?, RegQ, Sun, 10 Jan 2010 16:13:58
- UPDATE: NOT Turbo. and no new occurrence!, RegQ, Mon, 11 Jan 2010 22:09:59
- Was the vehicle repositioned?, Mark from Toronto, Sun, 10 Jan 2010 17:05:49
- Valve seal? But would not be temporary., LesH, Sun, 10 Jan 2010 16:53:19 <-- Viewing This Message
- I wouldn't worry., B Millar , Sun, 10 Jan 2010 16:25:48
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