I just replaced the engine in my 2002 2.5 Outback, got through 1,000 mile break-in, changed oil and I am about half way to the first 3,000 mile until I change the oil again.
When I start the car and let it warm up a little and accelerate I hear a ticking/knocking noise, which sounds like the lifters, but when it warms completely the noise stops. The sound is not there when I simply manipulate the throttle under the hood and only seems to be present when the car is under a load during acceleration.
I took the car into the shop where they serviced the heads, during the swap, and they checked the valve clearances and said the side I checked and adjusted was a little off, going by what Chilton's specs where, not knowing the clearances were posted on the bottom of the hood, so they reset them.
The engine is still making the noise, but it baffles me as to why it stops once the engine is at optimum temperature, because it seems like if it were lifter or bearing related it would get worse as the oil thinned out as it heats up.
At this point the only thing I can figure is that I put a Pure Power billet aluminum oil filter on the new engine that pumps 19 gal per minute, and that maybe this was somehow pumping too powerful a stream, causing the oil not to properly get up top when the oil is cool and thick, if that makes any kind of sense.
If anyone has any kind of insight into this, or if this ticking is normal with some 2,500 miles on new engine, any help would be greatly appreciated.
Thanks!
When I start the car and let it warm up a little and accelerate I hear a ticking/knocking noise, which sounds like the lifters, but when it warms completely the noise stops. The sound is not there when I simply manipulate the throttle under the hood and only seems to be present when the car is under a load during acceleration.
I took the car into the shop where they serviced the heads, during the swap, and they checked the valve clearances and said the side I checked and adjusted was a little off, going by what Chilton's specs where, not knowing the clearances were posted on the bottom of the hood, so they reset them.
The engine is still making the noise, but it baffles me as to why it stops once the engine is at optimum temperature, because it seems like if it were lifter or bearing related it would get worse as the oil thinned out as it heats up.
At this point the only thing I can figure is that I put a Pure Power billet aluminum oil filter on the new engine that pumps 19 gal per minute, and that maybe this was somehow pumping too powerful a stream, causing the oil not to properly get up top when the oil is cool and thick, if that makes any kind of sense.
If anyone has any kind of insight into this, or if this ticking is normal with some 2,500 miles on new engine, any help would be greatly appreciated.
Thanks!