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Author What could cause this damage?
JM_16v
Member
Registered: 17th Oct 05
Location: Essex Drives: GLC63S
User status: Offline
2nd Sep 12 at 13:27   View User's Profile U2U Member Reply With Quote
Stripped my engine down after it starting to smoke on the Dyno, i found this damage as well as bits of metal that looked like turbo fan blades, i spat out the exhaust turbines of two turbos early least year and have done 500 miles since. after 500 miles have they just wiggled free of the intercooler?

or is it DET?

All four pistons have gone

could it be mapping error?










[Edited on 02-09-2012 by JM_16v]
JM_16v
Member
Registered: 17th Oct 05
Location: Essex Drives: GLC63S
User status: Offline
2nd Sep 12 at 14:41   View User's Profile U2U Member Reply With Quote
Damage is parts missing of the pistons, i can see the rings on some of the pistons there are also some dented/melted areas on the pistons and on the head.
SportBoy
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Registered: 5th Oct 01
Location: Retford, Nottinghamshire
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2nd Sep 12 at 15:09   View User's Profile U2U Member Reply With Quote
Looks like det to me. would think it would be picked up by the op if it started on a dyno? Ie det cans

[Edited on 02-09-2012 by SportBoy]
davegreen
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Registered: 20th May 12
Location: Oxfordshire
User status: Offline
2nd Sep 12 at 19:46   View Garage View User's Profile U2U Member Reply With Quote
As sportyboy said looks like serious case of det been happening for some time by the looks of it. your going to need to get fueling and timing sorted if you rebuild the engine. can also be caused by burning oil or water. not nice to see that when you take head off!
Warren G
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Registered: 14th May 06
Location: Kent
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2nd Sep 12 at 20:05   View User's Profile U2U Member Reply With Quote


marks on head are from forgien objects entering the combustion camber, ie tops of pistons

hard to say by the pics
gazza808
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Registered: 30th Jun 08
Location: Peterborough
User status: Offline
2nd Sep 12 at 21:20   View User's Profile U2U Member Reply With Quote
Do the marks match between pistons and head?

If you've had two turbos let go I'd say that tbh,

Mate had pretty much the same on his supra, but the bits of the turbine will still stuck in the head lol.

 
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