As shown in the pic below, I have a leak coming from a hose at the passenger side of the radiator. Is this an oil line? I changed the fuel lines a couple of years ago, so I was wondering if I could use the leftover hose from that job to replace this one, or if I would have to use something different. Would it be the same process as the fuel lines, where I would just dremel off the metal sleeve on each end, replace the hose and use hose clamps on each end? The leftover hose that I have is from Roger's kit, if that helps. Thanks in advance!

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That should be the Trans cooler line , and carries significant pressure I think. I replaced those on mine recently by having them made up, but found the genuine items were not much more $.
jp 83 Euro S AT 55k

 

Transmission oil cooler line. I did take mine off and took it to a hydraulic specialist shop and they remade it for about $70 US.

 

if this line is now weeping,
you should get under the car and inspect the hoses that run down the TT ,
especially at the top of the cats,
these hoses will leak fluid onto the heat shield,
and then drip onto the cats and catch fire,
the lines should be rebuilt from the trans to the front of the car.

The lines In the front may be able to cut off and then new Hydro line installed and good quality screw clamps used

 

Arent the lines down the TT steel, with hoses at each end ?
jp 83 Euro S AT 55k

 

the lines that run down the TT are steel except at each end there is flexible hose and these are the connections where the leaking will occur.
The most important hoses to check are the hoses over the cats, more than a few 928 have gone up in smoke from these lines leaking.
Important also to make sure the hard lines are routed to the 4 O clock position on the TT ,
looking from the back of the car forward
otherwise the heat shield may hit the lines,
also consider if the MMs are worn then the TT will also be riding closer to the heat shield

 

Yeah, the trans cooler lines at the TT were leaking when I bought the car, so I had them all replaced. Even the line directly under the currently leaking hose was replaced (you can kind of see it in the pic), but for whatever reason they left this hose alone. I guess it was the only one that wasn't leaking at the time, but they must've known that it would only have been a matter of time.

So do you think I could use the high pressure fuel hose and clamps that I already have to replace this, or do I have to go to a hydraulic shop?

 

You can get the correct Hydraulic hose at the shop,
fuel line may not be the best for this it may deteriorate from the Hydro fluid ,
fuel line is made to resist different chemicals than Hydro hose does

 

Cool, thanks for the heads up. Does anybody know what the diameter is of the hose in question? I am just asking because I would ideally like to get the hose on the way home from work today considering that most places that sell the hose I need will be closed for the long weekend. Otherwise I would just take the hose off and measure it myself.

 

take some calipers and measure the hard line diameter on both ends of the hose,
get a few different diameters of hose in the correct length, though you may only have one choise on hose size also see if they have good hose clamps

 

I had them rebuilt by a hydraulic shop. For the connection to the hard line and one side of the keyed hose the shop provided some sturdy hose clamps.

 

Nice Aryan

 

Thanks, it's nice to have it cleaned up. The hose clamps are very practical for the keyed hose, not sure if the OP has that hose.

 

That looks great! I'm going to take the hose off sometime this weekend and I'll probably take it to a shop next week. Thanks for the tips!

 

Does any one know the part number for these hoses?