knocking

asc_up · Post by **asc_up** » Wed Aug 15, 2007 8:52 pm

hey so i FINALY managed to get my engine in and whatnot. BUT here's the kicker.

the car started up just fine. i added oil and coolant and ATF for my power steering. but when it started there was a loud knocking noise. i decided to let it run for awhile because i figured that the engine just must have been starved of oil and that's what was causing it. but i've let it idle for about ten minutes and i still hear the noise.

i'm also having a problem where i'm not getting full boost (when i was with my old longblock) and then the turbo smokes. oil leaking from somewhere on it i suppose.

anyone know what the problems are and if there's a solution for them?

EDIT: i also have a CEL and did a check. it threw a 12 and/or 22. i couldn't exactly tell haha. but 12 is the starter switch and 22 is the knock sensor.

douglas vincent · Post by **douglas vincent** » Thu Aug 16, 2007 1:06 am

the lifters make a HORRIBLE racket, I have had them make noise for 20 miles before it went away.

icrman · Post by **icrman** » Thu Aug 16, 2007 4:49 am

Don't know the full story, but it could be one of those,,,, rebuilds. Not with subaru but many other brands have witnessed so called top rebuilds bite the dust.

asc_up · Post by **asc_up** » Thu Aug 16, 2007 11:33 pm

ok. i'm just sort of scared to drive the car. it just sounds bad.

anyone know why there's a CEL for the knock sensor?

or why smoke looks like it's coming out of my O2 sensor on my DP?

douglas vincent · Post by **douglas vincent** » Fri Aug 17, 2007 12:51 am

How long have you actually had it running?

Like I said, lifters sound HORRIBLE because they are starved for oil

When we pulled the motor out of the purple wagon to replace the seals, it was without oil for only a few hours, and it took 15-20 minutes of running before the lifter noise went away.

asc_up · Post by **asc_up** » Fri Aug 17, 2007 4:04 am

well i went on a 20 mile drive.
there's still a knocking noise and smoke.

anymore thoughts?
is it possible that when i put the timing belt on, it was a little off? like would that cause the noise?

Post by **Legacy777** » Fri Aug 17, 2007 5:52 pm

It shouldn't knock or make noises. When I rebuilt my motor, I had a little bit of noise from the valves initially, but not too long.

As for what the problem is.....not really sure...

evolutionmovement · Post by **evolutionmovement** » Fri Aug 17, 2007 10:10 pm

I had the valves making a racket for about fifteen minutes. It was so damn loud I shut the car off immediately until I figured it was the lifters. IIRC, I also got the knock code due to the noise setting it off. A reset fixed it.

Is it a rapid-fire sound or a slow knock?

douglas vincent · Post by **douglas vincent** » Fri Aug 17, 2007 11:43 pm

And where is the smoke coming from?

asc_up · Post by **asc_up** » Sun Aug 19, 2007 11:36 pm

found the problem.

1 gallon of synthetic oil and 1 quart of oil cleaner stuff = no more noisey lifters.

apparently the synthetic gets into places better than the petroleum oils and then the oil additive helped to clean sludge out so the oil could get the the lifters even better.

as for the smoke. there was oil spilled on the turbo and an exhaust leak where the turbo and DP match up. after burning off the spilled oil and a new gasket...i'm set.

thanks guys.

douglas vincent · Post by **douglas vincent** » Mon Aug 20, 2007 12:35 am

I am glad we were right!

Those noisy lifters scare the pants off you, didnt they!?!?!!?!?

asc_up · Post by **asc_up** » Mon Aug 20, 2007 11:16 pm

hahaha yeah. all i thought when i started it up was "well there's $800 wasted"

lol. thanks again for your help.

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knocking

knocking