Can we fix our Cayman’s transmission? Or is it a $15K dealer repair?

Tom
Update by Tom Suddard to the Porsche Cayman project car
Mar 8, 2024 | Porsche, Cayman

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Remember that broken 981-chassis Porsche Cayman I picked up for $15,000–or less than half price–then drove cross-country with its four working gears? After tearing out its transmission, it was finally time for the moment of truth: cracking it open and figuring out what really went wrong. Finally, I’d learn why fifth and sixth gear were missing.

Remember, this car fell into …

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Comments
wae
wae PowerDork
3/8/24 8:20 a.m.

All those machine tools you bought and you're not even going to just manufacture your own pin?

TJL (Forum Supporter)
TJL (Forum Supporter) SuperDork
3/8/24 8:20 a.m.

Woohoo! Score! 
 

are you sure you dont want to buy a new $15,000 trans just to be sure?  
 

 

fusion66
fusion66 Reader
3/8/24 8:26 a.m.

Everyone loves a happy ending smiley

So now what are the plans for the Cayman? A potential keeper for future upgrades to produce content or a quick flip that produced a cool road trip and a few repair stories? It seems like either could be succesful but the quick flip has to be enticing .

Tom Suddard
Tom Suddard GRM+ Memberand Publisher
3/8/24 8:33 a.m.
wae said:

All those machine tools you bought and you're not even going to just manufacture your own pin?

I know, I know. But it's cheaper to buy the pin than to buy the stock to make one. 

Marjorie Suddard
Marjorie Suddard General Manager
3/8/24 8:55 a.m.
Tom Suddard said:
wae said:

All those machine tools you bought and you're not even going to just manufacture your own pin?

I know, I know. But it's cheaper to buy the pin than to buy the stock to make one. 

Plus you can sell the other 24 for $250 apiece as a specialty part that solves a known Porsche transmission weakness. Think of the dinners you could buy your mom with the profits! (I'm kidding except for the part about taking your mom out to dinner.)

Margie

Lof8 - Andy
Lof8 - Andy GRM+ Memberand UltraDork
3/8/24 9:36 a.m.

Hell ya!  Major score!

Stampie
Stampie GRM+ Memberand MegaDork
3/8/24 9:44 a.m.

Was the missing .2 mm wear or just like that from the factory?

Stampie said:

Was the missing .2 mm wear or just like that from the factory?

i would guess that the hole got wallered out as the pin made its exit

AxeHealey
AxeHealey GRM+ Memberand SuperDork
3/8/24 9:48 a.m.

Gotta love that outcome. Nice!

adam525i
adam525i GRM+ Memberand SuperDork
3/8/24 10:04 a.m.

If the 6 mm dowel is a bit loose just hammer in a 1/4", I'm sure that would be fine! Glad you found the problem, good luck with the reassembly. 

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