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Lots of smoke from a 3.2 liter ('85) ??
Was wondering if anyone has had this happen...
My 85 911 idles at start fine, no smoke... can drive for miles non-stop without any smoke, if I stop due to traffic or at a long light, after take off it delivers puffs of smoke fairly continous that can travel for about 5 - 6 car lenghts behind me... the smoke is white. Any ideas on what the problem can be? |
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09-21-2005, 11:35 PM
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Guest
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Sounds like a head gasket. Check and see if the water level is getting low. Just kidding man. I couldnt help it. Free bump!
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09-21-2005, 11:44 PM
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Not Quite Banned
Join Date: Dec 1999
Location: Ft. Lauderdale
Posts: 1,223
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Normally when smoke appears unexpectedly the first thing you think of is a 'over fill' condition. On the other hand, you mention white smoke which sounds like condensation in the exhaust system. Have you either added oil or been in a situation where moisture could have entered the exhaust?
Good luck and please post any findings...
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Thomas Owen 1972 911T 1972 911S |
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09-22-2005, 03:36 AM
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Autobahn Garage
Join Date: Jun 2003
Location: Ohio
Posts: 1,546
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Sounds like the valve guides, some what common on the 3.2 ask me how I know. I have pulled down 3 engine and replaced all the valve guides in each one do to wear. Do a search I'm sure you can find more info on this problem
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T Tanner 76, 911s w/ Webers 76, 914/4 57, Speedster |
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09-22-2005, 04:58 AM
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By the way, the engine doesn't leak any oil, all the smoke comes out of the tail pipe... I'll check some more on the valve guides issue.
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09-22-2005, 08:39 AM
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Location: LaGrange, NY
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drain you oil ...look at it , and tell us what it looks like.
Re-fill ...CORRECTLY.. the proper amount, dyno oil, and test drive & report back.
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Looking for 87-89 Silver Cab 911, black interior, must be low miles, near pristine, no accidents, well sorted. |
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09-22-2005, 08:42 AM
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Location: Encinitas (San Diego CA)
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I agree with Ken.
Good luck, Doug
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1971 RSR - interpretation |
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09-22-2005, 01:09 PM
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GFCC
Join Date: Apr 2002
Location: Phoenix, AZ
Posts: 1,785
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And just so you know, The oil level has to be checked with the car idling and on level ground at operating temp.
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Jeff 1976 911 Coupe w/ Euro 3.0 - Sold 1987 Carrera Coupe - Sold 1999 Carrera Cabriolet - Current |
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09-22-2005, 01:45 PM
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Although I am a little new to the Porsche community, I do know about this issue with same vintage Ferrari's. The same issue has happened with 328's mainly. Car would run fine until you stop for a bit, then a puff of white smoke after the stop light. Valve guides or rings was usually the issue. You can tell if it is the rings if you get a small amount of smoke under heavy acceleration. Have someone drive behind you (not too close)while you hit the gas so the other can see what is going on. Does the car pass emissions? How is compression? Did you check your O2 sensor? Good luck!
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No physical quantity completely explains its own existence |
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09-22-2005, 02:02 PM
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durn for'ner
Join Date: Feb 2005
Location: South of Sweden
Posts: 17,090
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I would agree with lvporschepilot. If overfilled wouldn´t it smoke more or less all the time ?
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Markus Resident Fluffer Carrera '85 |
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09-22-2005, 02:34 PM
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If you still have the prob after checking the above, and if you're not burning large/abnormal amounts of oil, you might want to check your O2 sensor. I only say this because a couple weeks ago mine was smoking after it idled for a long period of time (during a smog check). I mean it was smoking like a mother.
So I reconnected up the O2 sensor and bingo...no smoking and passed the smog check.
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-Steve '87 Carrera Targa |
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09-22-2005, 03:07 PM
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Thanks for all the input...
I hope it's simple like the 02 sensor, I'll check it tonight. |
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09-22-2005, 04:11 PM
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MBruns for President
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Mine used to do that = no smoke at start up - but if you really got on it when you slowed down to a light it would smoke a little. Never dropped a drop of oil. oil consumption only got bad on the track - had some puffs of smoke at downshift.
Turned out to be valve guides - 6 bad valves -
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Current Whip: - 2003 996 Twin Turbo - 39K miles - Lapis Blue/Grey Past: 1974 IROC (3.6) , 1987 Cabriolet (3.4) , 1990 C2 Targa, 1989 S2 |
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09-22-2005, 05:44 PM
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Warren Hall Student
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Sounds like guides.
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Bobby _____In memoriam_____ Warren Hall 1950 - 2008 _____"Early_S_Man"_____ |
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09-22-2005, 07:40 PM
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I took out 3 spark plugs (2 from one bank and 1 from the other) see them attached.
Also attached is what the smoke looks like, it was a period of about 3 minutes...          
Last edited by sd_73_914; 09-22-2005 at 09:57 PM.. |
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09-22-2005, 09:50 PM
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By the way...
I checked the 02 sensor and it looked OK, I disconnected it and plug it back on to see if there was a loose connection, but the car behaved the same way. The wiring for the O2 sensor looked new, so the previous owner probably replaced it (i've had the car for a short time)... It makes me wonder if it was replaced correctly ??? I'll drain the oil this weekend and I'll let you know what I find... 
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09-22-2005, 10:03 PM
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I think you will have to prepare yourself for a top-end overhaul. That smoke is blue, which is an indication of burning oil, and the pictures of the plugs shows a wetness which is much more than what valve guides would cause.
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1966 Porsche 911R (Replica) 1984 Porsche 924 (Racecar) 1957 VW Beetle 2003 VW Passat 1.8T |
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09-23-2005, 02:41 AM
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Not Quite Banned
Join Date: Dec 1999
Location: Ft. Lauderdale
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Based on what I see from the smoke you will probably need a top end rebuild. Valve guides are most certainly the problem here.
Good luck -
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Thomas Owen 1972 911T 1972 911S |
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09-23-2005, 03:44 AM
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Anybody know of an independent mechanic in the San Diego CA area who can do the top end rebuild.... How much should I expect to pay?
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09-23-2005, 10:34 AM
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Gone to California
Turbo
73' Porsche Targa
1966 Porsche 911R Replica
Porsche
