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07-12-2012
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#1 |
 
Join Date: Jun 2007
Location: West Norriton, Pa.
Posts: 36
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Engine Smokes
I have a 90 ZR-1 w/ 41k on the clock and an engine that's started to smoke. I figured I'd get some expert advice on exactly where to begin here on the registry. Here's the details
Smoke is blue in color Smokes and has a strong ordor when initailly started then disapates when run about 15 mi. or so Doe's not burn any oil ( at least from dipstick indicator ) Doe's not leak any oil New plugs and wires less than 2k mi. ago Any assistance would be welcome and thanks in advance. |
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07-12-2012
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#2 |
Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,180
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Re: Engine Smokes
No seals on the exhaust valves.....try a 15-50 oil Mobile 1 carries it
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
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07-12-2012
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#3 |
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Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,180
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Re: Engine Smokes
if its a fuel smell and bogs, could be an injector
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
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07-12-2012
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#4 | |
 
Join Date: Jan 2009
Location: Portland Oregon metro area (Washington side)
Posts: 3,193
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Re: Engine Smokes
Quote:
Oil level ok? What do you use? How long have you had it? Has it been sitting?
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Scott  Vett owner since 1979._It's about the car and the people |
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07-12-2012
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#5 |
 
Join Date: Dec 2003
Location: Chicagoland,IL
Posts: 2,667
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Re: Engine Smokes
1990 ZR-1's/LT5's did not have exhaust seals, they get a puff of smoke at start up no harm done,basicly normal.
If you ever do top end job i would suggest installing exhaust seals. Pete
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'91 #1635 PoloGreen 350 LT5 11.09 @ 129.27 11.04 @ 128.86 474RWHP 400RWTQ http://www.youtube.com/watch?v=SFNFOhGGlR4 http://www.youtube.com/watch?v=ZlRIOMwaDYY https://sites.google.com/site/peteszr1garage |
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07-12-2012
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#6 | |
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Join Date: Jan 2009
Location: Portland Oregon metro area (Washington side)
Posts: 3,193
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Re: Engine Smokes
Quote:
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Scott Vett owner since 1979._It's about the car and the people |
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07-12-2012
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#7 |
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Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,180
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Re: Engine Smokes
When I went to 15-50 race oil it stopped on my 90 and 15-50 is the weight many turbo motors use to stop turbo blow by
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
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07-13-2012
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#8 |
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Join Date: Jan 2007
Location: Florida
Posts: 240
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Re: Engine Smokes
Plus if I recall Mobil 1 15-50 has the high ZDDP content.
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07-13-2012
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#9 | |
Join Date: Nov 2007
Location: Squires (near Ava MO in the Mark Twain N'tl Forest) - Missouri
Posts: 6,466
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Re: Engine Smokes
Quote:
T'would be interesting to see how/why you determined that (the equiv of) 10W-32.5 is significantly different from 10W-30 - enough so anyway to go thru the bother...  P. |
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