frothy brown oil residue in expansion tank, dipstick oil OK
#1
Burning Brakes
Thread Starter
frothy brown oil residue in expansion tank, dipstick oil OK
This just came on with the last drive, after I topped of the expansion tank with distilled water.
Prime suspects?
Prime suspects?
#3
Burning Brakes
Thread Starter
Thanks, that's pretty much what I thought, but want others more knowledgeable to chime in here in case there are other prime suspects such as head gasket failure which would explain oil in coolant but no coolant in oil. I'm due for a heater control valve replacement, but that involves only the coolant system, with no oil mix potential.
#4
Nordschleife Master
Thanks, that's pretty much what I thought, but want others more knowledgeable to chime in here in case there are other prime suspects such as head gasket failure which would explain oil in coolant but no coolant in oil. I'm due for a heater control valve replacement, but that involves only the coolant system, with no oil mix potential.
Report back with what you find when you open up the oil cooler.
#5
Burning Brakes
Thread Starter
OK, thanks.
Follow up questions: This is an '86 Turbo, which I gather has the early type housing and Oil Pressure Relief Valve, so I need the early version seal kit, for about $35.
Any particular brand or source to get, or to avoid?
Is it really necessary to replace the been-working-fine-or-30-years OPRV, or just use a new O ring?
Is it worth removing the exhaust manifold (perhaps risking stripping a stud, etc.), or (with the belly pans already off the car) just bust knuckles working under a raised car?
Follow up questions: This is an '86 Turbo, which I gather has the early type housing and Oil Pressure Relief Valve, so I need the early version seal kit, for about $35.
Any particular brand or source to get, or to avoid?
Is it really necessary to replace the been-working-fine-or-30-years OPRV, or just use a new O ring?
Is it worth removing the exhaust manifold (perhaps risking stripping a stud, etc.), or (with the belly pans already off the car) just bust knuckles working under a raised car?
#6
Rennlist Member
I agree with Magk 100%. I had this issue with mine about 10 years ago. I have not had any "milkshake" since the repair was done. Good luck.
I can't comment on your other question because I paid a shop to do mine (had a drive planned for a few days after the failure occurred).
I can't comment on your other question because I paid a shop to do mine (had a drive planned for a few days after the failure occurred).
#7