DISASTER! (is it?)
#16
12-02-2011 | 04:16 PM
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From: Southlake, TX
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OP:
Please let us know what the final diagnosis is and good luck with it.
#19
12-02-2011 | 04:52 PM
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The 20 most problematic cars..... no where on the list is Porsche..
The Porsche like any other is just a car... the joy and satisfaction of owning and polishing and driving outweighs the problems...having said this, these cars are not without problems. Remember when you are reading these forums you are only reading a very small percentage of all the people with Porsches. Most of us have no problems with the Porsche than any other car we own
The Porsche like any other is just a car... the joy and satisfaction of owning and polishing and driving outweighs the problems...having said this, these cars are not without problems. Remember when you are reading these forums you are only reading a very small percentage of all the people with Porsches. Most of us have no problems with the Porsche than any other car we own
Last edited by 1BlinkGone; 12-02-2011 at 04:57 PM.
#24
12-03-2011 | 08:51 AM
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Joined: Dec 2010
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From: Del Rio, TX
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sorry to hear.
but congrats on 10years of marriage !
and don't let this ruin the wknd for u and ur wife.. she will never forgive u. lol.
maybe u r suppose to drive the Tundra this wknd to Niagara.. things have a funny way of working out.
let the dealership take a look at ur Pcar.. maybe its a simple fix.
if not, upgrade time ! j/k
anyways, in the big picture, its just a car.
btw, did u park ur car on an incline ?
but congrats on 10years of marriage !
and don't let this ruin the wknd for u and ur wife.. she will never forgive u. lol.
maybe u r suppose to drive the Tundra this wknd to Niagara.. things have a funny way of working out.
let the dealership take a look at ur Pcar.. maybe its a simple fix.
if not, upgrade time ! j/k
anyways, in the big picture, its just a car.
btw, did u park ur car on an incline ?
#25
12-03-2011 | 02:25 PM
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Joined: Apr 2007
Posts: 1,352
From: long island
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m97 and m96 997.1 engines are known to die due to those main reasons:
1. ims failure - bearing gets no lubrication, falls apart, engine is gone
2. timing chain stretches, tensioner is not working well when you start your motor as it got not enough oil yet - first symptom will be a very specific chain rattle at engine startup that goes away in 10-15 sec. when it stops going away - consult with mechanic.
3. overheating of 6th cylinder - some say 160deg thermostat helps to prevent this, or 3rd radiator helps, imho it is if engine is destined to die due to this - it will die no matter what.
4. sometimes as result of #3 cylinder sleeve comes apart.
5. rod bolts in m97/m96 are not made from forged steel - they are cast and stretched when installed - so they fall apart at max load, engine gets totalled with no core
6. AOS issue - oil gets into cylinder and destroys it due to hydraulic shock. may happen very fast on a track, may progress slowly. 996 cars used to produce a lot of smoke with AOS starting to fail, 997 cars somehow do not smoke so it usually a sudden death.
there was something else to add, but those above are most important ones. you can and should keep your ears open for chain rattle, and at 40k miles it is worth to drop off gearbox to inspect condition of RMS and other stuff down there. or just ditch m97 motor for newer version with yet unknown death simptoms.
plus newer is always better, especially while on warranty.
ps. i forgot crankshaft coming apart from uncompensated harmonic vibrations. 997 cars have heavy dual-mass flywheel to partially compensate those vibrations but due to how well engine was balanced at factory it may also happen. especially on those cars where stock clutch is combined with lightweight flywheel. usual workaround is to use clutch that has sprung-suspended disk that partially buffers those vibrations.
1. ims failure - bearing gets no lubrication, falls apart, engine is gone
2. timing chain stretches, tensioner is not working well when you start your motor as it got not enough oil yet - first symptom will be a very specific chain rattle at engine startup that goes away in 10-15 sec. when it stops going away - consult with mechanic.
3. overheating of 6th cylinder - some say 160deg thermostat helps to prevent this, or 3rd radiator helps, imho it is if engine is destined to die due to this - it will die no matter what.
4. sometimes as result of #3 cylinder sleeve comes apart.
5. rod bolts in m97/m96 are not made from forged steel - they are cast and stretched when installed - so they fall apart at max load, engine gets totalled with no core
6. AOS issue - oil gets into cylinder and destroys it due to hydraulic shock. may happen very fast on a track, may progress slowly. 996 cars used to produce a lot of smoke with AOS starting to fail, 997 cars somehow do not smoke so it usually a sudden death.
there was something else to add, but those above are most important ones. you can and should keep your ears open for chain rattle, and at 40k miles it is worth to drop off gearbox to inspect condition of RMS and other stuff down there. or just ditch m97 motor for newer version with yet unknown death simptoms.
plus newer is always better, especially while on warranty.
ps. i forgot crankshaft coming apart from uncompensated harmonic vibrations.
997 cars have heavy dual-mass flywheel to partially compensate those vibrations but due to how well engine was balanced at factory it may also happen. especially on those cars where stock clutch is combined with lightweight flywheel. usual workaround is to use clutch that has sprung-suspended disk that partially buffers those vibrations.
Loving my 06 and you can't have it. Get a grip man.
Last edited by Gpjli; 12-03-2011 at 02:27 PM.
#27
12-03-2011 | 03:08 PM
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I took it to the only place I trust, Brent, at Hunter Motorsports in Mississauga.
Its a strictly Porsche garage, Brent has been working on Porsches for over 30 years, I highly recommend his shop. Look it up.
Its a strictly Porsche garage, Brent has been working on Porsches for over 30 years, I highly recommend his shop. Look it up.
#29
12-04-2011 | 06:56 AM
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From: Long Island, New York
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Glad to hear it wasn't any thing major!
And Happy Anniversary.
#30
12-04-2011 | 09:52 AM
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From: Florida
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I'm one of those with an '80s Porsche, an '87 Carrera Coupé in which I've put 46k miles in a little over 4 years (bought it in 2007) without a hiccup!