Help!!! after t-belt job bad engine vibrations but b-shafts ok!!!

[dsmoverboosted]

Well about 6 months ago my b-belt decided to grind off all its teeth and throw the whole engine into a shake. It didn't snap so im ok but I have just gotten a chance to fix it this week. I finished the job (new timing and balance everything) and fired it up it was smooth. I went to drive it and give a little boost to my new 20g and it still shook alot.

Its almost as bad as when i was driving it with the b-belt removed (I needed a bunch of work done before i could fix the b-belt and needed to drive it). The boost gauge vibrates so bad the needle is unreadable but only when boosting more than 5 psi.

So I just whent to make sure the b-shafts where ok and my timing marks are still all good along with the front shaft and the rear one is not out 360 (screw driver went in farther than 3 inches in freeze plug)

What could be causing this? I have recently installed my turbo with mani, o2 and intake but I dont know how this could cause this. Also my mani came with a hole drilled in the number 1 and i only have a bolt pluging it. It leaks a bit, not that much but it does leak could that cause the vibrating i am getting?

Please someone help. I gotta get something out of this car that has takin so much from me

 

[dsmoverboosted]

Could the small crack in the exaust mani be causing this?

 

[dsmoverboosted]

Since all the timing marks line up and the oil sproket is correct I should be ok to bolt the cover and pully's back on right? Chances are it's unrelated?

 

[el aguila]

Since all the timing marks line up and the oil sproket is correct I should be ok to bolt the cover and pully's back on right? Chances are it's unrelated?

Check your motor mount.

 

[dsmoverboosted]

I did take a quick look at them before and they looked good to me but i will check again. Is it pretty obvious when there bad? Basically if they look good there good right?

 

[dsmoverboosted]

the timing belt side motor mount has some rips and cracks in it but is overall together. from what I could see of the others ones they look good

 

[dsmoverboosted]

Also my drivers side cv boot is torn. I noticed it the same time i pulled my shredded b-belt out. It was pretty new and it looked like something cut it because there was a clean rip and big splatter of grease on my oil pan. could that be the cause?

 

[dsmoverboosted]

well I guess I will go ahead and put the belt and cover back on and wait for some help

 

[dsmoverboosted]

Well I just went for a ride paying more attention to when its shaking. At idle it vibrates a bit, if I rev it up it gets smooth. When driving its fine without boost till about 4-4500 rpm than it sputters and breaks up. It shakes bad under boost. I also got a chirping belt the whole time the engine is running that gets louder when accelerating. All the belts are tight to.

I replaced the plugs with no change. I think the exaust mani leak is the cause of the sputtering at 4500, I will go for another cruise with my logger to see the fuel trims and o2 to confirm.

 

[Defiant]

Your rear balance shaft is 180° out of phase, and it also sounds as though you may have a failed harmonic balancer.

Close for bumping, though.