This is my first post in USMB :-)
Right now I have 3 subarus - 82 GL 2WD, 88 DL 4WD and 90 Legacy AWD. Today I'm asking about my 88.
It has 200K+ on the clock and a few weeks ago started making a really loud growling noise. It does this at idle, when I rev in nuetral, and in any gear. Louder with engine speed. Background info:
I start the car some morning to go to work. I notice a tapping noise that I haven't noticed before, but head to work anyway. A block down the road my oil light comes on. Knowing this light only comes on when the oil is really low, I head home and put two quarts in. I start driving again, takes a while for the oil light to go out, but I think the tapping is still there. I get on the highway and travel a few minutes at speed. Suddenly, something changes. The car starts making a very loud GROWL. I pull over and check oil, gear oil, etc. Everything is ok. I limp to work at low speeds and at low RPM to keep the noise down. I limp home the same way.
So, first I think the timing belt(s) have slipped or broken and I am getting no compression. I take the front of the engine apart and everything looks ok, but I replace them anyway. I check the ignition timing with a timing light, it looks fine too. I check compression and get 150/150/150/100 which is basically what I got the day I bought the car. I pull the distributor cap off and check it's position with the 0 degree mark, which also looks fine.
Any idea what this could be? I can't tell if there is a loss of power or not because the noise is so loud and scary I don't want to drive it hard (no tach either).
I did a search and someone had stated that a growling noise can be tranny gears - I am guessing this means the transfer gear because I don't even have to be IN gear to hear it. Any help is appreciated!
PS anyone want to buy it? It starts and runs!