997.2 3.8 Engine Failure
12-24-2018, 05:11 PM
#16
Ummm something has gone, but I don't believe that to be the bottom end. I think bearings give you gold looking flakes. And the amount of debris.... I'm still not convinced you have a blown engine.
Do the water pumps have metal impellers?
I'm just throwing darts....
Do the water pumps have metal impellers?
I'm just throwing darts....
12-24-2018, 05:26 PM
#17
Rennlist Member
Don't start it, leave it be. Hopefully you have another form of transportation. Time to do your homework about repairing it.
Just wondering, you live in a northern climate. Do you do a lot of winter starting and driving? If so what were your warm up habits?
Just wondering, you live in a northern climate. Do you do a lot of winter starting and driving? If so what were your warm up habits?
12-24-2018, 05:30 PM
#18
Three Wheelin'
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Sounds strange that piston slap should occur so fast. Don't believe it is. As it's usually accompanied by excessive oil consumption.
I cannot really see metal shavings in the pic but then you should have them also in the magnet in the bottom of the filter housing.
I would definitely look further before going for a full rebuild.
I cannot really see metal shavings in the pic but then you should have them also in the magnet in the bottom of the filter housing.
I would definitely look further before going for a full rebuild.
12-24-2018, 05:54 PM
#19
Three Wheelin'
Lots of tiny metal flakes there. Something is up. As others mentioned, don't start the car again and have it towed to a good Porsche shop. Fingers crossed that it's salvageable.
12-24-2018, 06:36 PM
#20
Three Wheelin'
Doesn’t sound like a grenadine motor to me. Too loud (if that makes any sense) for piston slap and the absence of codes signaling any impending doom. Did you get a fix on where the noise was coming from exactly? +1 on not starting it again to find out though. Get it towed to a good Indy.
Also, what type of Motul did you switch to? My motorcycle mechanic (ex Factory Aprilia team tech) told me Motul is suited to race/track bikes and cars, with very short change intervals. Told me to stay away from it for street driven vehicles with normal change intervals.
Also, what type of Motul did you switch to? My motorcycle mechanic (ex Factory Aprilia team tech) told me Motul is suited to race/track bikes and cars, with very short change intervals. Told me to stay away from it for street driven vehicles with normal change intervals.
12-24-2018, 07:00 PM
#21
Three Wheelin'
Yuck. Sorry I was hoping it was something simple.
Are those black flecks on your finger? If so I would rule out water pump and go with Wayne's suggestion on the chain tensioner. On the .1 the chain tensioners are a caramel color so any wear results in brownish, black flecks in the filter (Im not sure if the .2 is the same). The metallic flakes in the filter could be from the chain beating itself to death.
If you are comfortable I would drain the oil and drop the oil pan to see if you can find any more debris. Or just flatbed it to your indy after xmas.
Are those black flecks on your finger? If so I would rule out water pump and go with Wayne's suggestion on the chain tensioner. On the .1 the chain tensioners are a caramel color so any wear results in brownish, black flecks in the filter (Im not sure if the .2 is the same). The metallic flakes in the filter could be from the chain beating itself to death.
If you are comfortable I would drain the oil and drop the oil pan to see if you can find any more debris. Or just flatbed it to your indy after xmas.
12-25-2018, 12:32 AM
#22
The video sounds like a water pump or pulley to me. I would park it and get an oil analysis before tearing in to anything. If it comes back OK, fire it up for a few seconds without the belt and see if it goes away.
12-25-2018, 01:45 AM
#23
Nordschleife Master
Agree with those who advice not to crank it up again but flatbed it to your dealership or indy of choice for diagnosis. As I've said before, I've yet to read or hear about a complete 997.2 engine failure needing total rebuild or replacement. Not to say it never happened because it hasn't been posted on RL but statistics seem to be on your side. Good luck and please keep us posted.
12-25-2018, 09:40 AM
#24
Pro
12-25-2018, 09:50 AM
#25
Pro
OP, it's hard to see from pictures what you are seeing. I think you've got to investigate further. I'd get another oil analysis done now while you're evaluating next steps. An engine expert is probably going to recommend dropping the oil pan for further investigation.
12-25-2018, 10:20 AM
#26
Rennlist Member
The car currently has 76k miles.
What are my options? What kind of diagnosis can i do at home? Drain oil and look for shavings? The car doesnt have any faults or check engine on the dash.
What is the cost of new engine? Rebuild? 4.0 build?
Any suggestions on the shop around Chicago area?
Any advice is appreciated.
12-25-2018, 11:25 AM
#27
Rennlist Member
We normally do not do repairs or rebuild engines, but from time to time we'll facilitate a rebuild - we can pull the engine but our space to store cars is limited as LN has displaced what used to be customer storage for Bilt Racing Service with our expanded manufacturing and warehousing.
For the DFI cars, we run the rebuilds through RND Engines. Engine gets pulled and sent off, and block comes back to LN for processing. Rebuild cost starts around $15,500 depending on what damage we find. Good thing is we have lots of cores if something is bad.
I'd be curious to see the used oil analysis from this engine.
Have you tracked the car at all or know the prior history?
For sure, with the engine having been making mechanical noises, that I would cease to operate it, so as to prevent any further damage.
For the DFI cars, we run the rebuilds through RND Engines. Engine gets pulled and sent off, and block comes back to LN for processing. Rebuild cost starts around $15,500 depending on what damage we find. Good thing is we have lots of cores if something is bad.
I'd be curious to see the used oil analysis from this engine.
Have you tracked the car at all or know the prior history?
For sure, with the engine having been making mechanical noises, that I would cease to operate it, so as to prevent any further damage.
12-25-2018, 01:33 PM
#28
RL Community Team
Rennlist Member
Rennlist Member
2009 C2S 130k miles
Thanx for posting Charles, Ummm just curious, why do you have so many cores around? What kind of 997.2 failures do you see.
Peace
Bruce in Philly
Thanx for posting Charles, Ummm just curious, why do you have so many cores around? What kind of 997.2 failures do you see.
Peace
Bruce in Philly
12-25-2018, 03:11 PM
#29
12-25-2018, 03:17 PM
#30
