07-22-2010, 10:32 AM
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#1
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Engine Surgeon
Join Date: Aug 2008
Location: Cleveland GA USA
Posts: 2,425
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Those people with 150K on their clutches are going to need a new flywheel when they do change them..
The clutches in these cars can function fine and be chewing the flywheel all to hell for a few thousand miles.
Needing a preventive for a clutch change and running the car into the ground without preventive measures are two different things. If you run the car until it requires a clutch it will require more money to be spent.
__________________
Jake Raby/www.flat6innovations.com
IMS Solution/ Faultless Tool Inventor
US Patent 8,992,089 &
US Patent 9,416,697
Developer of The IMS Retrofit Procedure- M96/ M97 Specialist
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07-22-2010, 10:52 AM
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#2
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07 Carrera S Cab
Join Date: Nov 2005
Location: New Jersey
Posts: 2,273
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Yes, but that's 3 clutches to one clutch plus a flywheel replacement (assuming 50k, 100k, and 150k clutch change intervals vs. one new clutch and a flywheel at 150k. Which one ends up costing more? By 100k, he may have decided to sell the car, and thus, he even can leave the next clutch change to the next owner.
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Current: 07 Carrera S Cab in Midnight Blue
Previous: 01 Boxster in Arctic Silver, 86 944 in Guards Red
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07-22-2010, 11:15 AM
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#3
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Registered User
Join Date: Sep 2004
Location: Atlanta
Posts: 1,820
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Quote:
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Originally Posted by Boxtaboy
Yes, but that's 3 clutches to one clutch plus a flywheel replacement (assuming 50k, 100k, and 150k clutch change intervals vs. one new clutch and a flywheel at 150k. Which one ends up costing more? By 100k, he may have decided to sell the car, and thus, he even can leave the next clutch change to the next owner.
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it's my understanding that these flywheels (DMF) cannot be resurfaced because of the elastomer between the FW pieces. if that's the case, a proper clutch job would include a flywheel even at 50k. it's that, or you use the old one w/ its glaze & hot spots, thus reducing the life of the clutch you just installed.
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07-22-2010, 01:26 PM
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#4
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There Is No Substitute.
Join Date: May 2007
Location: West Coast
Posts: 3,253
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I took my Boxster by dad's (very honest, but non-Porsche) mechanic and he said that the clutch felt fine and he didn't detect any slipping. I also tried the uphill test mentioned earlier three times. I was going about 30mph and shifted from 2nd to 5th and floored it, the RPM's dropped lower then stabilized and I was crawling up the hill. Which I think means it is not slipping.
This mechanic has reasonable prices but I am not too fond of being lied too. I am going to hold off until the clutch is noticeably failing, and from what I found out it only takes a day to get the clutch replaced.
Thanks again for the great advice! (You guys just saved me $1300, for now)
__________________
1999 Ocean Blue Metallic Boxster - blueboxster.com
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07-22-2010, 01:49 PM
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#5
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Engine Surgeon
Join Date: Aug 2008
Location: Cleveland GA USA
Posts: 2,425
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Quote:
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This mechanic has reasonable prices but I am not too fond of being lied too. I am going to hold off until the clutch is noticeably failing, and from what I found out it only takes a day to get the clutch replaced
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Then be prepared to buy a new, 1000.00 flywheel.
__________________
Jake Raby/www.flat6innovations.com
IMS Solution/ Faultless Tool Inventor
US Patent 8,992,089 &
US Patent 9,416,697
Developer of The IMS Retrofit Procedure- M96/ M97 Specialist
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07-22-2010, 03:16 PM
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#7
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07 Carrera S Cab
Join Date: Nov 2005
Location: New Jersey
Posts: 2,273
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Quote:
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Originally Posted by blinkwatt
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Hey, thanks for that link Blink! Good price!
__________________
Current: 07 Carrera S Cab in Midnight Blue
Previous: 01 Boxster in Arctic Silver, 86 944 in Guards Red
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07-22-2010, 02:50 PM
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#8
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07 Carrera S Cab
Join Date: Nov 2005
Location: New Jersey
Posts: 2,273
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Quote:
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Originally Posted by rick3000
I took my Boxster by dad's (very honest, but non-Porsche) mechanic and he said that the clutch felt fine and he didn't detect any slipping. I also tried the uphill test mentioned earlier three times. I was going about 30mph and shifted from 2nd to 5th and floored it, the RPM's dropped lower then stabilized and I was crawling up the hill. Which I think means it is not slipping.
This mechanic has reasonable prices but I am not too fond of being lied too. I am going to hold off until the clutch is noticeably failing, and from what I found out it only takes a day to get the clutch replaced.
Thanks again for the great advice! (You guys just saved me $1300, for now) 
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Good for you! Let us know how long it ends up lasting!
__________________
Current: 07 Carrera S Cab in Midnight Blue
Previous: 01 Boxster in Arctic Silver, 86 944 in Guards Red
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07-24-2010, 05:20 AM
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#9
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Registered User
Join Date: Jun 2007
Location: Freeport, New York
Posts: 472
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Quote:
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Originally Posted by Jake Raby
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The clutches in these cars can function fine and be chewing the flywheel all to hell for a few thousand miles.
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What exactly is different in these cars that causes this unusual result as compared to other cars?
Regards, Maurice.
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