jayetoo

History: knocking/loss of power/low on oil, added oil - much improved. Drove 1 mile knock and power loss returned. Suggestions: drop oil look for signs of metal, check for rod bearing (sequential plug removal), compression check, oil pressure check, listen to block via a long screwdriver for location of sounds. UPDATE: I think it's toasted. ...after this workweek, dropped oil- no signs of metal, tried to do all tests again but will not idle. Knocking is much worse and now intermittant with new rattles, and clanks added to the symphony. All are very metallic sounds. I was going to change out the oil pump and pull the valve covers and cam assemblies... but I think it's a hopeless waste of 6-10 hours and money. I am going to pull the oil pan and check it for metal and see what the underside looks like but I am not hopeful. Its a shame only 140K on this Subie.

great suggestion thanks scrap!

Sound a little scary but willing to try anything THANKS!

Thanks russ... that is something that I can do today. I have heard about checking the oil for metal BUT no one has said exactly how to find metal in black liquid ... :-) until YOU!!

Hi - idles fine, does not burn oil, good gas mileage...what about bearing check (pulling each wire) is that not the right test? The dash guage is working, the pressure is low about 25. I can check with long screw driver where are the best spots to listen? Will try to get a oil pressure gauge, and am trying to locate the reseal kit for the oil pump, and the front cam seal (o-ring). Thanks for the reply. Anything else I can do?

PLEASE HELP!! 85 GL 145k LOUD heavy knock with power loss, added oil, better until 3500rpm loud knock returned, how do I test for problem source ? What do I do first? (have exhausted search feature). Has history of TOD used all treatments no luck. Have pulled plugs to check for a rod bearing-no differences. Afraid to drive, might blow engine? desperate-Need car for work HISTORY-Have tuned, changed oil 3x with all trmts MMO/seafoam/BG 44k, used Mobile1 10w30, no improvement in HLA noise on drivr side. Driving for 500mi with noise, then..driving at 75 loss of power down to 50mph, loud knocking on pass side- found very low on oil, added to full, pulled plug wires 1 at a time..no change so...I started OK- much improved. Drove 1mi at 3500rpm loud knocking/power loss returned. Now what?????