soclosenotnear
Active member
- Joined
- Oct 12, 2011
- Location
- summerville, south carolina
1990 740 turbo aw71
My brother and I are trying to solve his rather large oil leak. We have meticulously cleaned the engine bay to try and track this down. We also changed the oil separator box for Volvo oe. Verified all pcv hoses are clear and even the small brass nipple.
After these efforts, he is still having to add a half quart every other day or so. He noticed a slight wetness around the box and also under the distributor. But then dry all around it, so couldn't be the major source.
Every time the car is parked, a small pool forms under where the engine and transmission meets. Has to be the rear main seal, yes? Oil pan gasket isn't great, but dry on the sump. I imagine this leak is likely worse under boost when he's driving and that's when the oil loss really happens. But it leaks even with the car off(?).
I've never pulled an auto trans in my life, but how much harder than an m46/m47 could it be. But that is a last resort so we are just trying to verify.
My brother and I are trying to solve his rather large oil leak. We have meticulously cleaned the engine bay to try and track this down. We also changed the oil separator box for Volvo oe. Verified all pcv hoses are clear and even the small brass nipple.
After these efforts, he is still having to add a half quart every other day or so. He noticed a slight wetness around the box and also under the distributor. But then dry all around it, so couldn't be the major source.
Every time the car is parked, a small pool forms under where the engine and transmission meets. Has to be the rear main seal, yes? Oil pan gasket isn't great, but dry on the sump. I imagine this leak is likely worse under boost when he's driving and that's when the oil loss really happens. But it leaks even with the car off(?).
I've never pulled an auto trans in my life, but how much harder than an m46/m47 could it be. But that is a last resort so we are just trying to verify.