jenyap

I’m confused. I looked up diagrams for a 1986 and for 1987 on pelican parts website. They are somewhat different and I’m not sure which would apply to my car since it’s a 1986.5
Link to 86: https://techinfo.porsche.com/techinf...86_KATALOG.pdf See page 171


Link to 87: http://www.pelicanparts.com/PartsLoo...-85-Frame3.htm

I have not had a chance to get the exhaust removed to see what I have but it would be nice to be able to order parts asap

PorKen

Pelican has the ROW PDF catalog linked for some reason. Here is the USA version for 83-86:

https://techinfo.porsche.com/techinf...86_KATALOG.pdf

See illustration 308-86 for the cooler lines for '86.5 (F 92GS8 61000>>).






All the USA PDFs:
https://techinfo.porsche.com/techinf...e=MainFrameSet

jenyap

Thanks PorKen, that looks just like S4 So it's a metal line with rubber hoses attached at both ends. I bet those are a bit harder to fabricate.

jenyap

Update:
got exhaust out of the way and found the leaking hose. It's leaking from the rubber purt above the cat on one of the lines. The whole rubber part is cooked! Took the line to a shop and had the cooked part replaced (the shop only had enough hose of the right size to do that part). Put the line back on, started the car and it held pressure. The strange thing is-the other crimps started getting wet I don't understand what is going on. All the lines except for the burned one were bone dry before I fixed the bad one. Is it normal for lines to leak a little bit once fluid is reintroduced?

jenyap

Any thoughts?

no doubt

Lines should *not* be damp. Sounds like a bad crimp (blocked hose??). Could be that your new hose is allowing (or denying) full pressure...impacting your old hoses.

WallyP

The cooling circuit has very little pressure on the lines, since the return from the cooler is open and simply dumps inside the transmission.

Perhaps you moved the lines enough to crack the old cooked line. Both lines would be the same age and have received the same treatment...

jenyap

I think it’s done. I had a hydraulic shop replace the remaining rubber hoses on the lines. This time I could see no leaks. It would have loved getting new fittings that come with brand new lines but since this car is my daily driver I opted for the quick fix. My advice to those who haven’t replaced those lines- do it! Do it as soon as possible. It’s easy and inexpensive. 928 Specialists sell those lines or you can have your local hydraulic shop fabricate them.
Thanks to all who contributed advice!

Glenn M

My early 87 (0444) is different from the later ones. From the rear both lines go along the passenger side following the torque tube and both cross over to the drivers side before the flex plate bell housing. Here they connect to the hoses going forward to the cooler. So my car has four lines total and the lines going to the cooler come from the drivers side.

I could only get one new side, the other I got from 928 Specialists who happen to have a rebuit one from an 86.5. If rebuilding, each rubber hose end needs to be rebuilt. I couldn't find a local place to rebuild mine.

Can I cut a radiator hose to slip over the rubber lines to protect them?

Good luck and thanks,
Glenn

jenyap

I covered my lines with a length of heater hose in the areas where abrasion is likely and heat shield tape in areas near exhaust.

Mrmerlin

good sounds like you prevented a fire and you should not have any leaks for another 20 years