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Registered
Join Date: Apr 2007
Location: Seattle
Posts: 3,032
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Flywheel bolts
So, I have my motor on a stand in order to replace the clutch as well as bunch of other "while your in there" stuff.
My clutch and flywheel actually look to be in really good shape. I pretty sure the slippage was from to the recent power mods. So I'm replacing it with a Kep stage 1 The flywheel looks good but I think it would be wise to pull it off and have it resurfaced. Anyway, here's my question. Is it foolish to reuse the FW bolts ? I'm on a low budget but I don't wanna save $125 now only to have to spend thousands later. I am a cheap bastard but...
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81 Pacific Blue 930 Euro coupe slicktop on a strict diet, Rarlyl8 headers, Blowzilla turbo, Tial waste gate, Full bay I/C, Home made center out exhaust, Leask WUR, MSD 6AL, PLX wideband Wevo shifter, LSD. Next up, Cams, Heads and port work |
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04-23-2015, 11:59 AM
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Preferred pronoun:Maestro
Join Date: Sep 2012
Location: Group W Bench
Posts: 11,351
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I recall reading that the FW bolts are of the stretch variety, so I didn't re-use mine.
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When in doubt, use overwhelming force. |
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04-23-2015, 12:00 PM
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3 restos WIP = psycho
Join Date: Feb 2005
Location: North of Exit 17
Posts: 7,665
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NEVER EVER EVER EVER EVER reuse flywheel bolts. They are deformation type. Use once only.
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- 1965 911 - 1969 911S - 1980 911SC Targa - 1979 930 |
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04-23-2015, 12:46 PM
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Registered
Join Date: Nov 2013
Location: NW NJ
Posts: 1,242
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I got new ones in the clutch kit from turbokraft. Maybe call him to see what his cost if you haven't already? Had no idea they were expensive, let alone crazy expensive like that...
With a new friction disc, I would imagine resurfacing the flywheel is a good idea, no? I just got mine resurfaced and posted it in my build thread.
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1988 930 Venetian Blue |
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04-23-2015, 01:08 PM
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Preferred pronoun:Maestro
Join Date: Sep 2012
Location: Group W Bench
Posts: 11,351
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You can spend as little at $2.50 each ...
Pelican Parts - European Automotive Parts and Accessories - Porsche • BMW • Mercedes • Volkswagen • Audi • Saab • Volvo • MINI
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When in doubt, use overwhelming force. |
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04-23-2015, 01:15 PM
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Registered User
Join Date: Oct 2010
Location: Southern NH
Posts: 3,553
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Glad I read this...
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04-23-2015, 01:57 PM
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This is interesting...most if not all folks say that flywheel bolts should be replaced. I did some research and came across this. Keep in mind that this applies to 9 bolt flywheel...not 6 bolt flywheel. It's best to check for yield but who measure each bolt length before and after installation?
http://forums.pelicanparts.com/porsche-911-technical-forum/164089-flywheel-bolts-replace-not.html 
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MikeD '87 930 |
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04-23-2015, 04:42 PM
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3 restos WIP = psycho
Join Date: Feb 2005
Location: North of Exit 17
Posts: 7,665
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When Steve Weiner tells me to replace them - and not on a motor that he is touching - then gives me a set, gratis...that tells me all I need to know.
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- 1965 911 - 1969 911S - 1980 911SC Targa - 1979 930 |
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04-23-2015, 04:45 PM
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MikeD930
