Trying to resolve an extremely heavy oil leak coming from the front seal on a 2004 BEW TDI Jetta. Our tech installed a new seal, which leaked, and tried another one, which also leaked. I took it apart myself a third time and replaced the crank seal again. Crank snout was slightly worn, and was cleaned up with fine emery cloth. We are using a PTFE seal, which is being installed dry and the last time I let the car sit for 4 hours before starting it.
This car has just under 600,000km on it. After each seal replacement, the car will run that day with no signs of leaking. I drove this car/had it idling for 8 hours without any problems. After the vehicle sits overnight, the seal leaks (badly) just idling in the parking lot shortly after starting it. The first two failed seals had torn on the outside lip. I'm wondering if maybe the crank is moving around, worse when cold, and causing the seal to fail.
Im a VW tech and have installed 30+ crank seals, even more cam seals. Never a single problem. I even took my time on this one.
We're putting an engine in the car now, but I wanted to see if anyone has had a similar experience.
This car has just under 600,000km on it. After each seal replacement, the car will run that day with no signs of leaking. I drove this car/had it idling for 8 hours without any problems. After the vehicle sits overnight, the seal leaks (badly) just idling in the parking lot shortly after starting it. The first two failed seals had torn on the outside lip. I'm wondering if maybe the crank is moving around, worse when cold, and causing the seal to fail.
Im a VW tech and have installed 30+ crank seals, even more cam seals. Never a single problem. I even took my time on this one.
We're putting an engine in the car now, but I wanted to see if anyone has had a similar experience.