OK. Got this girl on the road, but....after a say, 80km ride on the freeway or even a mix of highway/street/freeway (about 100km/h etc) I'll be sitting at the stoplight near home and I can hear a clacking and it changes with RPM. (Sounds like it's coming from the valve train but I'll use a stethoscope to narrow it down). Not present when cold started. Just to throw a wrench into the story, I drove her today for a good mix of town/highway for about 50 km. and not a sound. She's otherwise fine. I've put 3500 km on her lately and averaging 960km per tank of petrodiesel.
Wondering if this is a lube issue (maybe need a better oil pump?) from the oil thinning out after a long run (I use good oil & I let her cool after a run so the turbine doesn't coke up) or not enough pressure to lube the top end? . I would like to put in an oil pressure guage but not sure which of the two senders I should tee out. Finding conflicting posts during a search of this site and the "other" one :lol: . I'm running GTX 15w40 (Synthetic isn't really an option right now). What's all this I'm seeing about a 32mm oil pump and would that fit my sweetie? Or am I getting tunnel vision and should be looking for something else? (btw, she's got 370k on the clock)
Cheers,
Andy
Topic: tapping noise after warm up...90 TD Jetta (Read 2093 times)
