Whining after timing belt change

[cn90]

Do a google search on Water Pump:

Aisin WPV800 is used in many many and many Volvo models.

PS: How many kilometers in your car?

[rspi]

I have installed some belts that were indeed very tight, hard to get them on. Once on, there was a little slack in the path until I pulled the tensioner pin. I do hear noise from my timing belt path every once in a while, a little groaning or something like that. No high pitch whine though.

Glad you guys pulled the rollers and verified they were nice and smooth. Hopefully it will work out for you. OEM parts help things go smoother.

[rubylarock]

I may have found the cause of the whining.

My engine number is 127xxxx and i searched online for the timing belt parts and found that there are 2 different tensioner rollers, tensioner and idler pulley for different engine numbers.

What i have found is that with my engine number the tensioner roller should be this one:

http://media.skandix.de/pimg/1002704.jpg

The tensioner roller that is installed os this one:

http://media.skandix.de/pimg/1002705.jpg

The first is for engines up to number 131xxxx. The last is for engines after 131xxxx. The are different on the contact point of the tensioner piston being the last one taller and putting more tension on the timing belt.

Also the idler pulley are different following the engine number. One has the pulley on center, other has the pulley off center.

You guys should already know this but my question is if using different parts according to engine number can result in this over tension on the belt causing the whine.

[abscate]

Hmmm. Wrong parts, bad fit, whining ....!!

[Ben850]

The first pulley is for the '93-'94.5, 21mm 143 tooth belt.

The second is for the '94.5- ... 23mm 148 tooth belt.

Incidentally, my '93 has the latter as an upgrade with a gates blue belt. ( My '96 Turbo Wagon as well now.) You do not have to use the old style, 50,000 mile belt. The newer pulleys and tensioner utilize the same bolt holes, and the gears are the same.

New Gates Blue 23mm 148 tooth and related pulleys INA.

Installed in the 1993 850GLT

This belt makes a comforting whine. It is a Kevlar infused composition and sounds a bit like a supercharger when you first install it. (Blower whine.) It is not very noticeable after a couple thousand miles, but I can still hear it sometimes with my windows open. It sounds good to me.