thebyus
11-24-2014, 08:16 PM
Was having a cage installed on the heap, and figured while it was in the shop I'd replace the glasspack with something quieter for the long road-trips.
When they took the glasspack off, they called me and said that I have oil in my old muffler!
When I drive it, I have NO smoke of any color, from the exhaust or anywhere else. I do SMELL oil burning, but there is no smoke, so I just assumed it was a drip onto the exhaust somewhere. Shop's thinking was that the oil in the muffler is blowby past the piston rings, but I have NOTHING indicating loose rings or cylinders; no knocking/slapping, no low oil pressure, and I am not burning through oil, etc. I even asked if it was OIL they found or just water/soot. They were sure it was oil.
It's an XJ, 2001, with 190K on it, original 4.0IL V6. Has plenty of power and acceleration, even rolling 35's on 4.56.
Anyone seen/heard of this before? Any solid thoughts on what it ACTUALLY is? I've seen/heard rings, valve seals, and valve stem guides, but ALL seem to be indicated by SMOKE, which I don't have.
Assuming it is the piston rings, if I keep oil in it, can I just keep driving it, or am I likely to throw a rod?
When they took the glasspack off, they called me and said that I have oil in my old muffler!
When I drive it, I have NO smoke of any color, from the exhaust or anywhere else. I do SMELL oil burning, but there is no smoke, so I just assumed it was a drip onto the exhaust somewhere. Shop's thinking was that the oil in the muffler is blowby past the piston rings, but I have NOTHING indicating loose rings or cylinders; no knocking/slapping, no low oil pressure, and I am not burning through oil, etc. I even asked if it was OIL they found or just water/soot. They were sure it was oil.
It's an XJ, 2001, with 190K on it, original 4.0IL V6. Has plenty of power and acceleration, even rolling 35's on 4.56.
Anyone seen/heard of this before? Any solid thoughts on what it ACTUALLY is? I've seen/heard rings, valve seals, and valve stem guides, but ALL seem to be indicated by SMOKE, which I don't have.
Assuming it is the piston rings, if I keep oil in it, can I just keep driving it, or am I likely to throw a rod?