- Dec 12, 2011
- 4,656
I have it all back together and took it for a drive....I'm not sure what is going on exactly yet but I believe I'm on the right track.
This is what I did today:
Replaced plugs
Replaced valve cover gasket, TB Gasket, Intake manifold gasket.
Throughly cleaned out the lash adjusters on cylinders 1-4 except for the front adjuster on Cyl1 as it was buried behine some phaser hardware.
Replaced lash adjuster on Cyl 1 exhaust side, 2nd from front. This is the adjuster that just felt all wrong, 7/64" travel compared to just about 1/16" on the rest...almost double and a weak spring, also had play in the bore of the adjuster...not the head.
At this point I put it all back together and started it up, first thing I noticed was a greatly reduced valvetrain chatter. Wasn't too bad before but I can hear a difference. After about a minute I started hearing the noise again but not as loud...never really "peaked" after about 4-5 min like before then settled again, but just stayed there at the level it did before when warmed up but just slightly louder than that.
I let the motor run for about 5 minutes and the noise kinda went in and out briefly but never went away.
I shut it down and changed out the CPAS before it got too hot and fired it up and the noise was the same. I started cleaning up and this took about 20 min, at this point the noise was getting much quieter and at times I had to bury my head in the wheel well just to try to hear it. Would come back and go away and before I left it was very quiet but I could hear a knock every so often.
Went to get gas then a cup of joe, in line I could always hear it echoing off the building in the drive-thru....I could barely hear it and only because I was listening for it, otherwise it's unnoticeable to the untrained ear.
Arrived home and I could hear it again but at a greatly reduced level. Not sure but I really wish I could have cleaned up the last 8 adjusters, may not be the reason but based on what the others looked like they need some TLC for sure.
I will get a video tomorrow hopefully and also put some miles on it. One thing's for sure....it runs a WHOLE lot better now, much more responsive and likely a combination of all the goodies. The intake gasket was flush with the manifold...very little sealing going on and I'm sure it was leaking slightly somewhere.
The motor sounds different too, hard to describe but it does..alot quieter.
I would keep the synthetic in there...only does it good. Some of those adjusters were so tight they are digging into the cam lobes.
This is what I did today:
Replaced plugs
Replaced valve cover gasket, TB Gasket, Intake manifold gasket.
Throughly cleaned out the lash adjusters on cylinders 1-4 except for the front adjuster on Cyl1 as it was buried behine some phaser hardware.
Replaced lash adjuster on Cyl 1 exhaust side, 2nd from front. This is the adjuster that just felt all wrong, 7/64" travel compared to just about 1/16" on the rest...almost double and a weak spring, also had play in the bore of the adjuster...not the head.
At this point I put it all back together and started it up, first thing I noticed was a greatly reduced valvetrain chatter. Wasn't too bad before but I can hear a difference. After about a minute I started hearing the noise again but not as loud...never really "peaked" after about 4-5 min like before then settled again, but just stayed there at the level it did before when warmed up but just slightly louder than that.
I let the motor run for about 5 minutes and the noise kinda went in and out briefly but never went away.
I shut it down and changed out the CPAS before it got too hot and fired it up and the noise was the same. I started cleaning up and this took about 20 min, at this point the noise was getting much quieter and at times I had to bury my head in the wheel well just to try to hear it. Would come back and go away and before I left it was very quiet but I could hear a knock every so often.
Went to get gas then a cup of joe, in line I could always hear it echoing off the building in the drive-thru....I could barely hear it and only because I was listening for it, otherwise it's unnoticeable to the untrained ear.
Arrived home and I could hear it again but at a greatly reduced level. Not sure but I really wish I could have cleaned up the last 8 adjusters, may not be the reason but based on what the others looked like they need some TLC for sure.
I will get a video tomorrow hopefully and also put some miles on it. One thing's for sure....it runs a WHOLE lot better now, much more responsive and likely a combination of all the goodies. The intake gasket was flush with the manifold...very little sealing going on and I'm sure it was leaking slightly somewhere.
The motor sounds different too, hard to describe but it does..alot quieter.
I would keep the synthetic in there...only does it good. Some of those adjusters were so tight they are digging into the cam lobes.