shawscove928s

I have a couple of hours invested in my search on this forum for a coolant hose diagram for a 86.5S. I need it to locate and identify all the rubber portions. I have to replace one in the front of the engine and need to check them all. Could someone please post one for me? I would be forever gratefulllllllll.

Paul Dortkamp

You may have to work it out from the PET for your MY. The only diagram I have seen is this schematic.

Rob Edwards

Go to the following website and download the 1983-86 928 PET parts catalog pdf file.

http://www.porsche.com/usa/accessori...spdfcatalogue/

Most of the coolant hoses are on pages 41-43, and the heater core hoses are on pages 369-370.

Be careful to get the ones listed for '86....

Jim bailey - 928 International

There is little need to "check " them since they are all probably 22 years old , only the radiator hoses get changed very often when someone pulls the radiator for a T-belt /water pump change. They probably all should be changed if you want the car to be a reliable driver. The little short hose to the heater valve is one which often bursts.....so common that some thought it was DESIGNED to fail as a "fuse" protective measure, but it simply get cooked by the engine heat. We stock the hoses....a phone call and they can be shipped today...

shawscove928s

Thank you Paul, Rob and Jim,
That Porsche PET pdf is helpful but very confusing. No wonder the dealer screws up your 928 when they try to work on it.
Jim,
I have already changed out the two radiater hoses and the short hose to the heater valve. Please email me a list of the others and their cost. I needed the coolant hose diagram to locate them all to see what all is involved and if I can change them myself.
Thanks again.
Ray