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Need a new clutch, which one to choose?
My 1984 Targa clutch looks like it needs to be replaced, pictures below.
The engine is stock, so should I go for a stock clutch? This one? https://www.pelicanparts.com/More_Info/91511691100.htm?pn=915-116-911-00-M38&bc=c&SVSVSI=0581 ![]() ![]() |
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Join Date: Feb 2006
Location: Ontario Canada
Posts: 2,947
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flywheel looks a bit beat ...
cant tell much else on the disk from there pics, there is new thickness, wear limit etc, depends how thick it is I didn't replace mine on my engine build as there was lots left. based on current usage i calculated i will hit the wear limit in 42 years.
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1976 Yamaha XS360 ( Beats Walkin') 1978 911 SC Targa ( Yamaha Support Vehicle ) 2006 Audi A4 2.0T (Porsche Support Vehicle ) 2014 Audi A4 2.0T Technik (Audi Support Vehicle) |
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Yes, a Sachs clutch disc will be a good choice for OEM. In addition, at the very least you'll need a new release bearing, pilot bushing, pressure plate, and to get your flywheel resurfaced.
The bottom image is of the flywheel, so I imagine the surface your pressure plate (PP) is marred up as well. There's no transaxle fluid on your flywheel, so you know the o-ring in your transaxle is good, and that the rear engine oil seal is okay. You might take a look at this YT video, where Kurt goes through a complete clutch job: https://www.youtube.com/watch?v=Nxplw5V7dDM |
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Join Date: Mar 2001
Location: Marysville Wa.
Posts: 22,422
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Stock sachs kit and a new flywheel. Good to go. Light pedal and no shudder.
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https://www.instagram.com/johnwalker8704 8009 103rd pl ne Marysville Wa 98270 206 637 4071 |
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PCA Member since 1988
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If you're a pro and working on a customer's car, you put in a new flywheel. If you are a DIY, like me, you have the old one resurfaced, if it isn't deeply scored.
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1973.5 911T with RoW 1980 SC CIS stroked to 3.2, 10:1 Mahle Sport p/c's, TBC exhaust ports, M1 cams, SSI's. RSR bushings & adj spring plates, Koni Sports, 21/26mm T-bars, stock swaybars, 16x7 Fuchs w Michelin Pilot Sport A/S 3+, 205/55-16 at all 4 corners. Cars are for driving. If you want art, get something you can hang on the wall! |
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Join Date: Mar 2001
Location: Marysville Wa.
Posts: 22,422
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And if their grinder is true, it works, if not, it shudders. Ya pays yer money and ya takes yer chances. That's why I go new. Don't like to redo stuff.
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https://www.instagram.com/johnwalker8704 8009 103rd pl ne Marysville Wa 98270 206 637 4071 |
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Most people don't get a new flywheel during a clutch disc replacement because the shop will have them resurfaced somewhere. (probably call a Porsche shop and tell them you're a DIYer and would like to know where they get their flywheels resurfaced). However, a new pressure plate is typically purchased at the time of a clutch disc replacement.
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Join Date: Mar 2014
Posts: 10,751
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When I did my clutch I resurfaced the flywheel and it came out nicely, no shudder after assembly. I think JWW is right though, need to make sure it's a good shop with the right equipment--I would hop no shop would go around resurfacing flywheels without knowing what they're doing, but you never know.
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A new flywheel is $400. Not sure what it would cost to resurface, but let's say $100. In my opinion, $300 savings is not worth the gamble that may force another engine removal.
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-Tony Instagram: @Pablo_the_Porsche | @RuchlosRallye AchtungKraft #002 |
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Join Date: Mar 2004
Location: North Vancouver bc
Posts: 5,293
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using a new flywheel is the best option, imho.
shop around - price fluctuation extraordinaire. Last edited by creaturecat; 07-23-2024 at 08:53 AM.. |
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1988 Carrera
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I have a new Flywheel for for an 84.
Call me at nine85-two 90 six six 6 1 Bill
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88' Carrera 79' SC gone (lost to Katrina) 75' Targa gone 72'914 gone 72' 914 gone too |
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Thanks for all the input.
I ended up getting it resurfaced at a reputable local shop and then getting flywheel and new pressure plate balanced together at another local shop. |
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Join Date: Feb 2003
Location: Philadelphia
Posts: 507
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I'm just wrapping up getting my car back together. I also started out with just replacing the clutch. Tranny rebuild, new alternator housing, new fuel lines, new stainless exhaust pipes and muffler, powder coat a lot of stuff and more new stuff.
For the flywheel, I bought new unused Fidanza light weight off ebay for $200. I've got no real interest in a lightweight flywheel versus standard but the price was right so I thought I'd give it a try. If I don't like it, I'll go back to stock.
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1980 911SC Targa 1990 S2 Cabrio (sold) 2004 C4S (sold) 2006 Boxster (sold) |
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