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914 JUNKIE
Join Date: Aug 2007
Location: Willow Grove PA
Posts: 186
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3.2 Motronic smoking badly
Was out for a 3 hour cruise on Sunday. Rebuilt 3.2 Motronic with 18000k on the clock. Really reliable. While driving 20 mph thru a small town with traffic noticed large amounts of oil smoke coming out of the car. Thought it was on fire at first. Stopped and it was smoking out the left bank of a dual outlet muffler there was oil dripping from the left heat exchanger/muffler flange. Must need tightening. Towed home then started to pull into the garage. Now both banks are smoking. Idled at 1400 instead of 900/1000. Never been overrevved or overheated. Pulled all the plugs and they’re oil soaked. Doing compression test now. Could this be an oil surge issue from venting?
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06-06-2023, 01:51 PM
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just one Q did you put some oil in lately??there is a possibility that you have overfilled it..if you did tell us how did you do it..
Ivan
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1985 911 with original 502 191 miles...808 198 km "The difference between genius and stupidity is that, genius has its limits". Albert Einstein. |
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06-06-2023, 01:59 PM
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914 JUNKIE
Join Date: Aug 2007
Location: Willow Grove PA
Posts: 186
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No oil added.
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06-06-2023, 02:35 PM
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ok ,what is is your level on warm engine at idle?
ivan
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1985 911 with original 502 191 miles...808 198 km "The difference between genius and stupidity is that, genius has its limits". Albert Einstein. |
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06-06-2023, 03:09 PM
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Registered
Join Date: Oct 2001
Location: San Carlos, CA US
Posts: 5,547
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18,000 miles on a rebuild and it now craps out?
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Porsche 2005 GT3, 2006 997S with bore-scoring Exotic: Ferrari F360F1 TDF, Ferrari 328 GTS Disposable Car: BMW 530xiT, 2008 Mini Cooper S Two-wheel art: Ducati 907IE, Ducati 851 |
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06-06-2023, 05:06 PM
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914 JUNKIE
Join Date: Aug 2007
Location: Willow Grove PA
Posts: 186
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Quote:
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06-06-2023, 06:43 PM
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Stuck pressure relief valve causing massive blowby?
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06-06-2023, 09:24 PM
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Was the smoke actually coming out of the exhaust pipe or from the left side heat exchanger?
Rahl
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1976 930 turbo Carrera, "Ubich". Mostly stock, lightly sweetened. She’s an angry schwierigkeit. She doesn’t want flowers, she just wants to dance! And when she does, she shakes her hips to the rythem of the road. Drive her like you hate her! |
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06-07-2023, 09:06 AM
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914 JUNKIE
Join Date: Aug 2007
Location: Willow Grove PA
Posts: 186
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Quote:
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06-07-2023, 10:17 AM
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Join Date: Jul 2021
Posts: 689
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If oil is suddenly in every cylinder I say it's getting in through the vacuum system. Put a $20 scope off amazon down your inlet manifold to confirm, or open up the throttle plenum.
Sent from my SM-G988B using Tapatalk |
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06-07-2023, 11:16 AM
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Wicked Witch of the East
1976 Porsche 930
