Oil lines cold when engine is hot
#16
Instructor
ok, good. Let us know what you find. Any don't even think about unscrewing the big plug for the main thermostat insert using the slot in it. Simply won't work.
#17
Hey everyone I replaced my thermostat and it seems to have done the trick. Once engine is warm the oil lines are hot so the thermostat is working. Also the oil pressure came down once it does warm up. The car is running great. Thank you everyone for the help. Now I am back on the search for some 8x16 fuchs wheels.
My 86 911
My 86 911
#22
Rennlist Member
Just another note, typically an over-heating car will thin the oil and pressure will go down.
#24
Seems like an example of a crazy price for a simple part.
Are there any alternatives to buying an OEM Porsche 'stat?
How common is it for this part to fail?
#25
Team Owner
Wow, it seems that the oil cooler thermostat is like a $400 part. Were you charged about that much by your mechanic?
Seems like an example of a crazy price for a simple part.
Are there any alternatives to buying an OEM Porsche 'stat?
How common is it for this part to fail?
Seems like an example of a crazy price for a simple part.
Are there any alternatives to buying an OEM Porsche 'stat?
How common is it for this part to fail?
This is why there are so many threads on pelican about this. Sometimes you are into other specialized hardware and oil lines too.. they can get damaged or cut off during removal.
#27
Team Owner
#28
Instructor
sure, some are beyond repair. The nice thing about the cap however is that it is like the thermostat body itself out of aluminum. So no bad contact corrosion like with aluminum and steel. The trick to remove the cap with the thermostat in place is using the biggest possible pipe wrench. The trick when the thing is removed from the car is using a fine saw blade and carefully saw the metal gasket between the thermostat body and the cap. This will remove the tension and the cap can be unscrewed relatively easily. As you said, if they are heavily corroded, nothing will help.
#29
Team Owner
sure, some are beyond repair. The nice thing about the cap however is that it is like the thermostat body itself out of aluminum. So no bad contact corrosion like with aluminum and steel. The trick to remove the cap with the thermostat in place is using the biggest possible pipe wrench. The trick when the thing is removed from the car is using a fine saw blade and carefully saw the metal gasket between the thermostat body and the cap. This will remove the tension and the cap can be unscrewed relatively easily. As you said, if they are heavily corroded, nothing will help.
i just dropped my engine and was thinking about replacing this line that goes to the external stat ( SC ) but looks challenging. the flex end is "sweating "
#30
Instructor
the only tip I have for that one is using a Dremel and cut (or almost cut) thru the nut. Then use a larger screwdriver and break the nut open. I would not even try to turn the steel nut on the aluminium regulator body with any kind of wrenches. It will almost guarantee to ruin the threads.