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Registered
Join Date: Dec 2001
Location: Motorcity R.I.P.
Posts: 608
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85 930 Engine Bolt Question
I recently removed my muffler a noticed bolt #1 in the photo below wasn't tight. It doesn't appear to be contacting any threads. Does this bolt thread into the engine case? Anyone know how long it should be?
Thanks 
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85 930 Ruf BTR |
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05-24-2010, 01:46 PM
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Senior Advisor
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Humm, mine doesn't appear to be there also...
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08 Cayenne Turbo |
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05-24-2010, 02:13 PM
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Crotchety Old Bastard
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There is a long spacer behind that bolt. The bolt itself is very long and screws into the engine block. It is often left off because you cannot remove the bracket with the turbo in place (due to the turbo studs going through the bracket. Quite often that bolt is stripped as well.
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RarlyL8 Motorsports / M&K Exhaust - 911/930 Exhaust Systems, Turbos, TiAL, CIS Mods/Rebuilds '78 911SC Widebody, 930 engine, 915 Tranny, K27, SC Cams, RL8 Headers & GT3 Muffler. 350whp @ 0.75bar Brian B. (256)536-9977 Service@MKExhaust Brian@RarlyL8 |
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05-24-2010, 03:12 PM
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Registered
Join Date: May 2004
Location: Boulder, Colorado
Posts: 7,275
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Brian
Are these extra unthreaded castings on an SC/3.2 case there for various Turbo bits? And just don't get tapped for NA motors?   Last time questioned their function some thought they were there to support cam gears instead of chains for the Porsche airplane motor. But one of them looks like where you say the mystery bolt should fasten. And the picture makes it appear that there are some extra bolts on the right side of things also. Walt (not that intimate with turbos) |
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05-25-2010, 12:54 AM
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78 Porsche 911SC 3.0L, 3.3Turbo soon. 
