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Car Forum / Saab Cars / March 2005Oil Smells Like Gas and Is Thin
1985 900 8V (non-turbo) with 165.000 miles. I did an oil change a few months back. I checked my oil the other day and noticed an slight overfill. I thought that maybe I had done it accidently during that last change (but didn't really think so). So, a few days later, I checked it again. Now, it seemed to be even more overfilled. I noticed it also looked very thin, so I applied the nose test and found that it smelled very much of gasoline. Apparently, significant amounts of gas are being washed into or leaking into the oil somewhere. I'm sure that if the oil gets too thin, my motor is toast. I will change the oil, but I also want to fix the cause of this problem. Any thoughts? Thanks! -- Christian Save Darfur -- http://www.savedarfur.org/ World Vision (Darfur) -- http://donate.wvus.org/OA_HTML/xxwvibeCCtpItmDspRte.jsp?section=10025&item=1072182 ICC (Sudan) -- http://www.persecution.org/Countries/sudan.html > 1985 900 8V (non-turbo) with 165.000 miles. I did an oil change a few > months back. I checked my oil the other day and noticed an slight [quoted text clipped - 3 lines] > it also looked very thin, so I applied the nose test and found that it > smelled very much of gasoline. Could be coming past the rings, or maybe valve guides. Not many other options. How's it running? Pull the plugs, see if they look OK, or if one is markedly different than the others? Easist problem would be a misfiring plug, which would give you problems with how well the car runs. 165,000 is pretty young for worn rings or guides, though. > Could be coming past the rings, or maybe valve guides. Not many other > options. How's it running? Pull the plugs, see if they look OK, or if > one is markedly different than the others? I've seen this caused by a ruptured diaphragm on mechanical fuel pump. If this car is carburetted, then it's definitely worth taking a look at the pump.  SignatureGrunff >> Could be coming past the rings, or maybe valve guides. Not many other >> options. How's it running? Pull the plugs, see if they look OK, or if [quoted text clipped - 3 lines] > If this car is carburetted, then it's definitely worth taking a look at > the pump. Ah yes, I forget about those since we didn't get carbs for long before that time. >> Could be coming past the rings, or maybe valve guides. Not many other >> options. How's it running? Pull the plugs, see if they look OK, or if [quoted text clipped - 3 lines] >If this car is carburetted, then it's definitely worth taking a look at >the pump. And of it's got injection, then it could be a leaking injector dribbling fuel in through an open inlet valve whilst the car's parked. Not sure if that applies to these particular engines though - do they have port injection? Cheers, Colin. >> Could be coming past the rings, or maybe valve guides. Not many other >> options. How's it running? Pull the plugs, see if they look OK, or if [quoted text clipped - 3 lines] >If this car is carburetted, then it's definitely worth taking a look at >the pump. Electric fuel pump. Fuel injected. -- Christian Save Darfur -- http://www.savedarfur.org/ World Vision (Darfur) -- http://donate.wvus.org/OA_HTML/xxwvibeCCtpItmDspRte.jsp?section=10025&item=1072182 ICC (Sudan) -- http://www.persecution.org/Countries/sudan.html > Electric fuel pump. Fuel injected. Hmm, ok. I'm not convinced about the likelyhood of *lots* of fuel getting into the oil. As Dave said, pull the plugs, have a look, and tell us what they look like (or put a photo up somewhere and link to it). SignatureGrunff Your cold start valve is bad. It is remaining open and allowing gasoline to flow into the intake. I am surpriised you could get it to run properly. >Your cold start valve is bad. It is remaining open and allowing >gasoline to flow into the intake. I am surpriised you could get it to >run properly. You could have something there. My cold start valve was malfunctioning about a year ago that I disconnected the wiring to it. (It would flood so bad it wouldn't start at all.) But, it still has fuel to it and that may be where it's leaking in. Thanks! -- Christian Save Darfur -- http://www.savedarfur.org/ World Vision (Darfur) -- http://donate.wvus.org/OA_HTML/xxwvibeCCtpItmDspRte.jsp?section=10025&item=1072182 ICC (Sudan) -- http://www.persecution.org/Countries/sudan.html >> 1985 900 8V (non-turbo) with 165.000 miles. I did an oil change a few >> months back. I checked my oil the other day and noticed an slight [quoted text clipped - 11 lines] >problems with how well the car runs. 165,000 is pretty young for >worn rings or guides, though. It doesn't have any trouble starting. Motor sounds good and runs fine. It idles a little high and wants to die when the AC is on but it has done that for quite awhile and probably just needs a tune-up. It doesn't smoke but does blow small amounts of black liquid from the tail pipe during/after initial startup. -- Christian Save Darfur -- http://www.savedarfur.org/ World Vision (Darfur) -- http://donate.wvus.org/OA_HTML/xxwvibeCCtpItmDspRte.jsp?section=10025&item=1072182 ICC (Sudan) -- http://www.persecution.org/Countries/sudan.html >>> 1985 900 8V (non-turbo) with 165.000 miles. I did an oil change a few >>> months back. I checked my oil the other day and noticed an slight [quoted text clipped - 15 lines] > It idles a little high and wants to die when the AC is on but it has > done that for quite awhile and probably just needs a tune-up. Pull the plugs & take a look. > It doesn't smoke but does blow small amounts of black liquid from the > tail pipe during/after initial startup. That's probably water condensation with soot, yes? Dave Hinz >>>> 1985 900 8V (non-turbo) with 165.000 miles. I did an oil change a few >>>> months back. I checked my oil the other day and noticed an slight [quoted text clipped - 17 lines] > >Pull the plugs & take a look. Okay. It has been quite awhile since I've had them out. I only use my Saab to get back and forth to work so it chalks up only a small amount of miles each year. >> It doesn't smoke but does blow small amounts of black liquid from the >> tail pipe during/after initial startup. > >That's probably water condensation with soot, yes? That's what it looks like. -- Christian Save Darfur -- http://www.savedarfur.org/ World Vision (Darfur) -- http://donate.wvus.org/OA_HTML/xxwvibeCCtpItmDspRte.jsp?section=10025&item=1072182 ICC (Sudan) -- http://www.persecution.org/Countries/sudan.html |
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