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1980924turbo
Joined: 29 Apr 2016
Posts: 9
Location: Springville
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 Posted: Fri Apr 29, 2016 1:26 pm Post subject: 944 fan shrouds |
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Greetings. I am new here. I have a 1980 931 that I am going to do a radiator swap on from a 944. Are the fans and shrouds the same from 1985 on up? The shroud numbers are a little different but they look the same?
Has anyone ever used the aftermarket aluminum radiators off of ebay like GPI racing ones? Any help would be appreciated. |
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ideola
Joined: 01 Oct 2004
Posts: 15548
Location: Spring Lake MI
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1980924turbo
Joined: 29 Apr 2016
Posts: 9
Location: Springville
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| Posted: Sat Apr 30, 2016 2:55 am Post subject: |
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| Thanks. I have read the thread and profile on how to do the mod. Do you use two lower hoses for the 931 or 2 lower hoses from a 944? Do all of the other hoses from the 931 work including the thermostat neck? |
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ideola
Joined: 01 Oct 2004
Posts: 15548
Location: Spring Lake MI
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| Posted: Sat Apr 30, 2016 4:23 am Post subject: |
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If you read the whole thread, you must have missed this post in it:
| ideola wrote: | Once you have the expansion tank installed, you can start on the hoses. Here's the list of what you'll need:
QTY 2: 046.121.061 (yes TWO; lower rad hose)
QTY 1: 944.106.245.04 (expansion tank to rad)
QTY 1: 944.106.249.01 (expansion tank to rad overflow fitting)
QTY 1: 944.106.251.00 (expansion tank overflow hose)
QTY 1: 931.106.159.00 (t-stat housing to upper water pipe)
Unfortunately, this last hose is NLA and I have not found a suitable replacement, although I'm working on it. I simply re-used one of the several I have salvaged from various projects that was in good enough condition.
The first problem is to get the stock 931 hose installed. As mentioned above, the ports on the later rad are larger than on the original 924 rad. I just used a bunch of assembly lube on the inside of the stock lower rad hose and the outlet from the rad. I used a tiny screwdriver to gently persuade the smaller hose opening to stretch and fit onto the outlet. Here it is installed:
The second problem is that the stock upper rad hose (931.106.157.00) that goes from the hard water pipe to the upper inlet is also too small. Rather than fight with it, I just used a second lower rad hose. It has the perfect 90 degree bend, and the larger opening that ordinarily would connect to the lower water pump inlet is perfect for the upper rad inlet. Here's it is installed:
Install the t-stat-to-hard-pipe 90 degree elbow (the one that is NLA) as normal.
Install the expansion-tank-to-lower-rad hose, the long squiggly 944 part number. Here it is installed:
 
Install the two smaller overflow hoses as normal. Done! |
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erstwhile owner of just about every 924 variant ever made |
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1980924turbo
Joined: 29 Apr 2016
Posts: 9
Location: Springville
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| Posted: Sat Apr 30, 2016 10:10 am Post subject: |
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| The reason I ask is I will not be using the stock burp tank. I will be using the original one. From the description it looks like I need to order an extra radiator hose for a 931 to be used on the 944 radiator. Is that correct? |
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ideola
Joined: 01 Oct 2004
Posts: 15548
Location: Spring Lake MI
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| Posted: Sat Apr 30, 2016 11:05 am Post subject: |
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I haven't installed this using the stock expansion tank, so I'm not sure which hoses would be required...the post above should give you a rough guide before you order, but I'd recommend getting the rad first, and then sorting out the hose connections.
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erstwhile owner of just about every 924 variant ever made |
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