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New 931 - question about radiator

 
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Bryan S  



Joined: 26 Nov 2016
Posts: 15
Location: Mesa, AZ

PostPosted: Sat Nov 26, 2016 9:38 pm    Post subject: New 931 - question about radiator Reply with quote

Hello,

I just towed my 1982 Porsche 924 Turbo home today. It needs some work so I will posting some questions here over the next few weeks. The engine turns over but it will need a radiator. My question is, will a radiator from a NA (non turbo) car fit my 931?

Thanks,
Bryan
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Rasta Monsta  



Joined: 12 Jul 2006
Posts: 11332
Location: PacNW

PostPosted: Sun Nov 27, 2016 5:16 am    Post subject: Reply with quote

Radiators are the same, I believe. If you get a used one, make sure it's serviced at the rad shop before use. Also, if you don't know timing belt history, don't crank it any more.

Fwiw, Ron Davis Racing has a nice albeit expensive aluminum replacement. I might consider it in the desert...it is a very nice unit.

Also, beware the non factory replacement found at some vendors...garbage.
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ideola  



Joined: 01 Oct 2004
Posts: 15462
Location: Woodstock IL

PostPosted: Sun Nov 27, 2016 10:35 am    Post subject: Reply with quote

Yes, 924 NA radiator is the same as 931. It is vitally important on the 931 that you have the dual fan shroud, and that the fan system is working correctly.

I can also heartily recommend converting over to the slightly better, lighter, and slimmer profile 944 radiator setup, including eliminating the 931 expansion tank in favor of the fender mounted 944 unit. New rads for the 924/931 are increasingly difficult to find, while the 944 stuff is relatively inexpensive and plentiful.

Here is a writeup:
http://www.924board.org/viewtopic.php?t=36438

Here is a link to the parts required to do the 944 expansion tank:
http://garage.ideola.com/prod-CoolingSystemKits.html#CRU
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Bryan S  



Joined: 26 Nov 2016
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Location: Mesa, AZ

PostPosted: Sun Nov 27, 2016 11:33 am    Post subject: Reply with quote

Excellent. Thanks for the info!
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Bryan S  



Joined: 26 Nov 2016
Posts: 15
Location: Mesa, AZ

PostPosted: Sun Nov 27, 2016 12:10 pm    Post subject: Reply with quote

Thanks for the info. Do you know if there are any good YouTube videos or manuals that cover the Timing Belt/Water Pump replacement? I did this job on a 1988 944 but I don't know if it's the same for a 1982 924 Turbo.

Thanks,
Bryan
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ideola  



Joined: 01 Oct 2004
Posts: 15462
Location: Woodstock IL

PostPosted: Sun Nov 27, 2016 2:14 pm    Post subject: Reply with quote

Timing belt procedure is much simpler on 2.0L.

Same for water pump and bleeding. Do you have a Haynes Manual?
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15 981 GTS | 88 924S SE | 82 931 Holbert | 82 931 Rallye | 81 937 | 81 Euro 931 | 81 Weissach | 80 US 928 | 80 US 931 '941' | 80 US 931 | 80 931 GTR | 79 Sebring | 78 D-Prod Replica | 78 w/D-Prod kit | 78 Poli-Form | 78 Limited Edition | 77 Martini
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Bryan S  



Joined: 26 Nov 2016
Posts: 15
Location: Mesa, AZ

PostPosted: Sun Nov 27, 2016 10:09 pm    Post subject: Reply with quote

Thanks, ideola! I'll purchase the Haynes Manual next.
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Rasta Monsta  



Joined: 12 Jul 2006
Posts: 11332
Location: PacNW

PostPosted: Mon Nov 28, 2016 4:20 am    Post subject: Reply with quote

Fwiw I put a scirocco expansion tank on my car. Much, much higher quality than the Porsche unit and less than $20.
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nickthompson  



Joined: 26 Mar 2013
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Location: Central Georgia

PostPosted: Mon Nov 28, 2016 11:53 am    Post subject: Reply with quote

Bryan S wrote:
Thanks, ideola! I'll purchase the Haynes Manual next.


I have an extra one. Since the only thing still 924 in my car is the suspension the book doesn't much apply to my car.
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nickthompson  



Joined: 26 Mar 2013
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Location: Central Georgia

PostPosted: Mon Nov 28, 2016 11:55 am    Post subject: Reply with quote

Rasta Monsta wrote:
Fwiw I put a scirocco expansion tank on my car. Much, much higher quality than the Porsche unit and less than $20.


That is brilliant. I'll have to look into that when the used 944 unit I bought goes south.
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Bryan S  



Joined: 26 Nov 2016
Posts: 15
Location: Mesa, AZ

PostPosted: Mon Nov 28, 2016 10:02 pm    Post subject: Reply with quote

nickthompson wrote:
Bryan S wrote:
Thanks, ideola! I'll purchase the Haynes Manual next.


I have an extra one. Since the only thing still 924 in my car is the suspension the book doesn't much apply to my car.


I just ordered one. Thanks though!
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