jprine
Veteran Member
details:
2003 manual, 156k, been using Mobil TDT oil for the last 30k?. Owned the car since 101k
Recently It started consuming allot of oil for the past 6k or so (about 1quart per 2000miles I would guess). It smokes constantly a bit, and smokes allot more when revved up or also allot under high boost in a high gear (WOT in 5th @ 70mpg on highway I can see allot of smoke in the rear view). It has always smoked a little bit after starting (valve seals) but not excessive, and that hasn't gotten any worse. The car drives pretty normal and has normal power (maybe sightly less power). Also the turbo sounds normal.
Did allot of searching on these forums, and it seems like the turbo or maybe the rings are the first things to check. I pulled the lower intercooler pipe and there was no pool of oil inside.. looks normal. Next I took the oil cap off of the valve cover while the car was running at idle to see how much blow by could be felt, and it felt like a ton of air was coming. (Is there a spec for how much crankcase pressure there should be so I can compare a gauge reading to a standard?)
I was going to pull the turbo inlet pipe off the turbo to feel for movement but my mechanic friend talked me out of it saying I'm better off pulling the down-pipe because if the seals are gone on the turbo but not the bearings it could feel normal but still be letting oil out. Also that with the excessive crank case pressure and that the turbo drives normal that he thinks its probably not the turbo anyway?
I will get the harbor fright diesel compression tester when I get a chance.
So is there anything other then bad/suck rings that can be causing my excessive pressure? And if it is my rings I read about treatments that can maybe fix it without having to open up the engine? (autoRX?)
Thanks!
2003 manual, 156k, been using Mobil TDT oil for the last 30k?. Owned the car since 101k
Recently It started consuming allot of oil for the past 6k or so (about 1quart per 2000miles I would guess). It smokes constantly a bit, and smokes allot more when revved up or also allot under high boost in a high gear (WOT in 5th @ 70mpg on highway I can see allot of smoke in the rear view). It has always smoked a little bit after starting (valve seals) but not excessive, and that hasn't gotten any worse. The car drives pretty normal and has normal power (maybe sightly less power). Also the turbo sounds normal.
Did allot of searching on these forums, and it seems like the turbo or maybe the rings are the first things to check. I pulled the lower intercooler pipe and there was no pool of oil inside.. looks normal. Next I took the oil cap off of the valve cover while the car was running at idle to see how much blow by could be felt, and it felt like a ton of air was coming. (Is there a spec for how much crankcase pressure there should be so I can compare a gauge reading to a standard?)
I was going to pull the turbo inlet pipe off the turbo to feel for movement but my mechanic friend talked me out of it saying I'm better off pulling the down-pipe because if the seals are gone on the turbo but not the bearings it could feel normal but still be letting oil out. Also that with the excessive crank case pressure and that the turbo drives normal that he thinks its probably not the turbo anyway?
I will get the harbor fright diesel compression tester when I get a chance.
So is there anything other then bad/suck rings that can be causing my excessive pressure? And if it is my rings I read about treatments that can maybe fix it without having to open up the engine? (autoRX?)
Thanks!