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Puff of blue smoke on startup after sitting - normal?
Hi,
I'm looking at a 1987 911/ 3.2 G50 to purchase. It has 122,000 miles and has service history since 1992. It has had regular valve adjustments, oil changes, and things like distributor cap change, replacement of camshaft o-rings and gaskets and misc other things, but no top-end or valve guide replacement. The owner says that after it sits a long time and he starts it, he gets a puff of blue smoke. But not when its warm. Is this normal? or does this indicate an upcoming top-end (I don't want a bill for 10k soon if I can help it). BTW the owner says that all 911's do this. Thanks Marvin
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2016 Honda Civic LX in White 2015 Honda CRV EX in Black 1987 Porsche 911 3.2/G50 Targa in Guards Red *SOLD* 2005 Honda Odyssey LX in Gold *SOLD* 1986 BMW 325 in Black owned for 21 years *SOLD * |
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08-12-2007, 04:43 PM
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Yup, it's normal. Does it blow smoke on decel? That's not normal...
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'85 Defender 90 V8 Station Wagon (mine), ‘16 Mini Cooper S Countryman All4, ‘79 Mini Moke Californian (hers). '83 SC Coupe SOLD '96 Carrera 4 Coupe SOLD '89 Carrera Targa SOLD |
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08-12-2007, 04:52 PM
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Friend of Warren
Join Date: Oct 2000
Location: Lincoln, NE
Posts: 16,494
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What Paul said. Completely normal.
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Kurt V No more Porsches, but a revolving number of motorcycles. |
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08-12-2007, 05:40 PM
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Join Date: Dec 2005
Posts: 3,384
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It is normal however it is also advisable to get a compression and leakdown test with any engine. Usually valve seals will let a bit of oil through when tired so you get the smoke until they warm up. If it checks out with compression and leakdown then I would say you are pretty safe.
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08-12-2007, 05:42 PM
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19 years and 17k posts...
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Be sure to get a PPI!
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Art Zasadny 1974 Porsche 911 Targa "Helga" (Sold, back home in Germany) Learning the bass guitar Driving Ford company cars now... www.ford.com |
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08-12-2007, 05:50 PM
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Good to hear that it's normal.
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2016 Honda Civic LX in White 2015 Honda CRV EX in Black 1987 Porsche 911 3.2/G50 Targa in Guards Red *SOLD* 2005 Honda Odyssey LX in Gold *SOLD* 1986 BMW 325 in Black owned for 21 years *SOLD * |
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08-13-2007, 08:45 AM
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I also emailed the guy again and he re-iterated that it sometimes smoke on startup,
but no always, and that a rebuild may be about 40-60k out yet: "The car [87 3.2/G50] does smoke on start-up when it has been sitting for a while. This does not always happen. I had a '77 911S where it happened every morning. When I had the PPI done at Kahler's, I asked Denny Kahler about the need for a top end rebuild and if he thought it would be required. He thought I could probably get 40-60K more miles on the car before it became necessary." I will definately get a leakdown & compression test if I pursue this car to see how it is doing.
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2016 Honda Civic LX in White 2015 Honda CRV EX in Black 1987 Porsche 911 3.2/G50 Targa in Guards Red *SOLD* 2005 Honda Odyssey LX in Gold *SOLD* 1986 BMW 325 in Black owned for 21 years *SOLD * |
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08-13-2007, 08:47 AM
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If my car sits for more than 4 days it blows some smoke at startup. The engine was rebuilt less than 15k miles ago. My guess is that oil seeps into those horizontal cylinders when sitting long enough.
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2000 Boxster S 2004 330ci convertible 1978 450 SLC 1924 Model T Ford touring Fleet of Ford Buses, Sedans, SUVs and Limos |
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08-13-2007, 09:30 AM
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durn for'ner
Join Date: Feb 2005
Location: South of Sweden
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If you can get a truthful answer, the oil consumption is not a bad indicator of overall engine health.
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Markus Resident Fluffer Carrera '85 |
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08-13-2007, 09:49 AM
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SC Coupe
Moke
MazdaSpeed3
Old Yeller
Boxster
