BigBadTL

I just installed the stock diameter UR crank pulley and replaced all the belts as well as the tensioner and pulley component...I used all OE equipment from the local dealership. I'm getting belt squeal on start-up only in the morning, but it is fine during the day and when driving. After doing some research, it seems I should be using the GATES belts and that should stop the squeal...am I correct?

fsttyms1

Try spraying a bit of belt dressing on the belts. See if that fixes the problem or see if it comes back. If it does try changing the belt.

Rajca

iTrader: (8)

after i installed my ur pulley i had a squeal afterward. used belt dressing and helped then it came back, changed the belts and its all good now.

BigBadTL

^^did you folks use the GATES belts?

Rajca

iTrader: (8)

i used the belts from auto zone.

EL19

iTrader: (4)

duralast?

01tl4tl

Is the torque on the new crank pulley bolt set at 181 foot pounds?
If its not on tight enough- there can be a mis-alignment of the belt and cause a noise

iirc some 03s got a new pulley and timing belt on recall- a misalignment was wearing out the belt early

Rajca

iTrader: (8)

i think its duralast, thats what autozone sells so i guess that thats what i got.

BigBadTL

mine's a 2002 TL-S, so I don't think the recall applies, but I did hear about it before...

I just picked up the Gates belts from NAPA, so hopefully they will take care of the problem when the're installed on Monday.

Excelerate

iTrader: (1)

1. Check the tension on the belt.
2. Make sure it's a Gates Belt
3. Apply belt dressing
4. Replace it if it's worn or not a Gates belt since they work best with the UR aluminum pulleys.

BigBadTL

Quick update for folks you may read this thread in future...if you plan to run a UR stock size crank pulley, you MUST use the Gates belt. I was experiencing squealing, and a low rpm ticking noise with the stock size OE belt. This was after replacing the tensioner/pulley and both belts using the the Honda/Acura brand. It turns out that a brand new Gates serpentine belt is about 3/4" of an inch smaller in diameter than a brand new Honda/Acura serpentine belt. When using the UR pulley, the Honda/Acura belt (because it is longer than the Gates belt) fully extends the tensioner, causing both a low rpm ticking/rattling noise and a periodic squeal. My mistake was believing that since both brands list that model belt as the stock size replacement, that it wouldn't matter which one I used.

In my searches about this problem, it wasn't ever fully explained why the Gates belt had to be used, so hopefully this will help other folks out in the future.

DC3328

iTrader: (22)

where do u get a Gates belt?

MrHeeltoe

iTrader: (1)

+1




But toss out that belt dressing idea. That stuff usually works for the short term only, as mentioned above.

MrHeeltoe

iTrader: (1)

We get the timing belts:
http://www.heeltoeauto.com/Gates-Tim...-pr-63565.html


And we get the pulley belts for NST TSX kits.

If you can shoot me a belt number I can get the belt for you no problem.

01tl4tl

call local parts stores and ask if they sell gates belts- you will find one fast

BigBadTL

I got mine from NAPA...their brand is manufactured by Gates.

Excelerate

iTrader: (1)

http://store.excelerateperformance.c...s/b-10643.aspx

Or buy them from Napa b/c Napa has Gates make their belts, as was mentioned below.

jproy

I have used all gates belts and used several different UR pulleys of both OE size and under drive size on the CLS. All of them had a low RPM squeal that chirped with every firing of the cylinders especially when the AC is on after I put about 1500 miles on the belts. Each pulley was different and all have had only new belts with the pulley install. I have even tried changing the belts again. As always, in about 1500 miles the squeal comes back. It is annoying as hell. Sometimes I hear it in my sleep. Do not use belt dressing. It causes more problems in the long run. I have the UR under drive on now and it is really pissing me off. I may try a belt one size smaller than specified for the UR UD pulley. I have also replaced the entire tensioner with a new OE unit all three times I installed a different pulley. As soon as I went back to the stock pulley twice the noise was completely eliminated. The improvements with the pulley are great however.

BigBadTL

please post what size belt you decide to try...so far, mine has been good, with no squeals or other noises...

jproy

I have not done it yet and I forgot to mention in the post above that the noise is only at >1500rpm when the A/C compressor is on.