2_point8_boy

What do you guys suggest to get rid of this crap??? I got a motor that is pushing 210 psi on the compression check, and it gets there very quickly. The service manual says taht it should be arouns 150 psi. I've heard in the past that Sea foam is the way to go, but I can't find it out here in Los Angeles? Any other fun forms to remove it???

Doward

Napa or Carquest carries Seafoam.

Or go to a GM dealer, and ask for their 'GM Top End Cleaner'

Otherwise, a wire brush works well, just don't do that on the pistons.

Dale

iTrader: (12)

I did the sea foam on mine, and fowled out some plugs, so after you do it, plan on changing plugs.

Maverick H1L

iTrader: (8)

NAPA sells a fuel injection intake cleaning kit which is supposed to clear out everything from the throttle body to the chambers themselves. I have yet to try it, but I heard it works.

AM91Camaro_RS

laeve it alone if its not lose and rattling around. it'll bump up your compression ratio a little and, on a N/A motor, more compression will help power. if you really want it cleaned out, what about the water method? spray a light mist into the intake.

2_point8_boy

well. the carbon build up has raised my reading on the compression gauge from 150 to 210 on every cylinder and I MUST run 91+octane boost for it not to ping. I've done everything short of actually removing the head, and everything else is within spec. I wouldn't mind so much, but having to run 91+a bottle of octane boost isn't good.

Also, I have already tried the water trick...didn't work. made a little bit of grey smoke, but nothing major. This engine is 20 years old and never been apart except for a valve adjustment, so it's tired.

p.s. this isn't a f-body motor, it's from a volvo, but I knew that you guys would have an answer for me.

Maverick H1L

iTrader: (8)

Having a nice coolant leak at the head gasket works wonders too. It ruins the head so it has to be machined, but the engine internals are clean as a whistle on my dad's 2.2L Cavalier...
Other than that, the best I can say is the kit from NAPA.

KED85

What's easier?
Paying for octane booster & pouring it or doing the dirty work & fix the engine correctly?
IF an old Volvo from late 80's they run for quite a long time.

Project: 85 2.8 bird

I got my can of Sea Foam from an advance auto. Just call around the auto parts stores, if no joy, call around the boat shops