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Fluid (oil?) Leak


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Parked the GT3 after a couple of hours driving and several days later when I returned to the warehouse I had a small fluid drip on the floor. I did not do anything at that point because it did not look like oil, but over the next 3 months the spot got quite large. I would describe the fluid as a clear to yellow color which is not particularly slick. Has no smell. It does look like engine oil as there is no real color to it. However, it has a consistency which is probably thicker than coolant. It is coming from the center of the car just behind (to the rear) of the rear tires. I have no clue what it is but is definitely problematic. I attached photos of the issue. Thank you for any help.

post-25418-0-44982700-1319652025_thumb.jpost-25418-0-57738200-1319652034_thumb.jpost-25418-0-26839400-1319652049_thumb.jpost-25418-0-49220500-1319652061_thumb.jpost-25418-0-78312100-1319652071_thumb.j

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update: finally got to try to locate the source of the leak and although I could not determine the precise source of the leak, I have determined it is motor oil. just dropped it off today at my mechanic's shop and will update with the diagnosis. thanks for the input.

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update: just got a call from my mechanic and the source of the oil leak is the fly wheel seal. he is going to replace the seal and says the recommended fix is the non-GT3 seal. Says this is a common problem. Has to drop the tranny. Costs (including standard service, replacement of faulty oil pressure sensor, and repair of horn) is $1,800.00. Thanks for all the input.

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  • Admin

There different schools of thought on this but Porsche recommends 997-102-264-91 - which is used on the RS.

Be sure you verify whether the spacer ring is there per TSB 3/08 1359 Spacer Ring for Crankshaft Sealing Ring -- dated Feb 18, 2008.

"As of November 21, 2007, a spacer ring is fitted on the crankshaft sealing ring on the flywheel side on GT3 engines. The spacer ring is fitted between the crankcase and crankshaft sealing ring."

Details are in the TSB.

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  • 3 weeks later...

all repaired and after doing some additional work (replace break fluid, replace transmission fluid, replace radiator fluid, oil & filter change, replace oil pressure sending unit, new wipers, new horns, and RMS leak fix), final costs $2,400.

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