timing belt issue

[green97gstspyder]

I just installed a new timing belt and pulleys and i am having trouble with the inner edge of the belt fraying a little on the inner lip of the tensioner pulley. I am certain this is the cause since it isn't touching anywhere else. will this stop or only get worse? It is a gates belt with stock pulleys on a 6 bolt. I also tried sliding the belt to the outter edge of the cam pulleys but it went right back to the inside.

 

[GSTurbo1]

is everything torqued down to the right spec?

 

[green97gstspyder]

yes all bolts were torqued but I will double check on monday to rule this out. I have done a few timing belts on these motors and this is a first for me.

 

[bryanwheat]

Check to make sure that the crank timing plate isn't bent at all.

 

[pauleyman]

Did you use a 2g or a 1g tensioner pulley? They aren't quite the same.

 

[green97gstspyder]

I thought i ordered a 1g one. Its has the green ring on it if you look at it from the front. I know the old one was blue but i remember i had to get two because the one i bought wasnt spaced right and was rubbing against where it mounts so i had to get another from advanced.

Also whats different between the two??

 

[Alan11]

i cant recall exactly but the 1g tensioner pulley is wider that the 2g tensioner.. or vice versa... they are not interchangable though..

Check the crank trigger plate like brian said.. I dont think a pulley would do this kind of damage.

 

[pauleyman]

They don't sit in the same relative position and the eccentric is different. 1g and 2g procedures are also different. Dots go up on 1g, down on 2g. Don't remember where the year split is that this changed.

 

[green97gstspyder]

From what i remember i rotated the dots clockwise. I have the old pulley was in good condition may just put it on. I believe the belt sits a good ways away from the trigger plate but ill check that too

 

[green97gstspyder]

there is one other thing that I remember when I put the timing belt on was when I went to set the pre tension on the tensioner pulley if I put too much it would slip and spin all the way around. I dont remember this happening before but its been a while could this be an indication of the wrong pulley?

 

[pauleyman]

yup.

 

[themanotb]

make sure the oil pan bolts aren't hitting it...

 

[green97gstspyder]

oil pan bolts were the first thing i checked.

as far as having the wrong pulley since it would slip all the way around. what is the difference between the two setups just that one pulley? or are the belts different as well or are both pulleys different. I just want to make sure of what Im going to have to change out. I only want to do this once more. I have the old tensioner pulley that was in good condition as well as the other pulley I just wanted all new stuff on there so if I have to Ill just throw those on.

 

[pauleyman]

I pointed that out above. The bolt hole is in a different place so the eccentric motion is different. I don't recall which one has more. They also do not sit in the same relative position, One pulley has a different backspacing from the other. It's a small difference but it's there. The other pulley is the same. The bolts are the same. If you compare a 1g and 2g tensioner pulley it will be plainly obvious what the differences are aside from color. Color doesn't mean squat anyway, it's merely a different manufacturer.

 

[green97gstspyder]

So if i have the right pulley it wont slip all the way around?

Also is this belt still safe to use?

 

[pauleyman]

Hmm....unless it's a pretty good illusion I think I'm wrong. I have 1g and 2g tensioner here. The bearings are different but when held up they appear to have the same eccentric. They are different part numbers, not just different manufacturers.

 

[green97gstspyder]

How does the inner lip look? Is it the same? Also should it be a 1g tensioner even though its a 2g bracket?

 

[pauleyman]

Lip looks the same but I measured a depth difference from the back.

 

[green97gstspyder]

Same diameter? Im sure the first one i had was wrong since i couldnt get the proper clearance on the pulley. It was rubbing against where it mounts

 

[pauleyman]

Yes, same diameter. Maybe you can spin it around but I don't see how.