My first post to this forum, apologies for any faux pas...
My '97 Outback 2.5l DOHC 5speed, 105k, is making a Screeching sound since having its schedualed cam belt replacement. Begins at 2500rpm up to 3000, and probably beyond, but drowned out by regular engine whine. By my ear it's coming from the alternator, so I had hoped for a mis-adjusted belt. Took it back to the reputable independent shop (but my first activity with) for a look see. Removed both the alternator and AC belts and started it up; same noise unchanged. He thinks it is a normal condition, I assured him it is not and has only done so since his service. Gave me the shrug-of-the-shoulders answer. So, anyone care to venture a guess? I've not seen inside this part of the motor, so it's just speculation, but since the cam belt tension is hydraulic, auto adjusted, what else might be the cause? Idler gears or some type of belt guide? Hmmm...might just have to drive it 'till sumpthin' stops. Not.
Thanks for any input.