found the source of my knock

[berserker6]

I used the belt off of a TTA GATES Part # K060630 the stock replacement for a GN was 640 I think.

thanks rich. i dont mean to be redundant but that belt is a little shorter?

 

[king kong]

I had the same problem when i first installed rebuild with a new belt. the stock replacement is a little to long and i to was getting strange knocking noise. Put old belt on and it went away......alittle shorter is better :biggrin:

 

[Rich Gio]

thanks rich. i dont mean to be redundant but that belt is a little shorter?

Yup...just a tad shorter.

 

[hesermon]

thanks rich. i dont mean to be redundant but that belt is a little shorter?

FYI, the last three numbers are the length (around) in inches. i.e. 640 is 64.0 inches, the 630 indicates 63.0 inches.
The first 6 indicates the number of ribs in the belt

 

[bsdlinux]

FYI, the last three numbers are the length (around) in inches. i.e. 640 is 64.0 inches, the 630 indicates 63.0 inches.
The first 6 indicates the number of ribs in the belt

The 635 belt is the magic number for the these cars I had all kinds of noises and replaced the stock belt with the 635 one after researching on TB.com. Very quiet now .....:biggrin:

Here is one of the short threads : http://www.turbobuick.com/forums/general-turbo-buick-tech/272219-serpentine-belt.html

Also years ago when I first got into TBs the first car I bought came with a bunch of notes etc and the former owner mentioned the shorter 635 belt.

 

[chrisgarrett]

Get this puppy.

 

[Rich Gio]

Not to Hijack, but...

Chris, do you think the 630 is going to be too short?

 

[TurboBuRick]

I run a 630. No problem.

 

[chrisgarrett]

Never ran a 630, but I trust Rick. :smile:

 

[87rdgn]

I had a slight knock after a fresh rebuild.It had 20 miles on it when it started.Turns out it was the water pump bearing on a new pump.Just thought I would add this from my experience in an unknown knock.

 

[Pittsburghkid]

Get this puppy.

That's what I have on my car and it's only $20 on fleabay.

Goodyear Engineered Prod 4060635 Serpentine Belt - eBay (item 190471655588 end time Dec-22-10 15:50:13 PST)