Timing belt noise?!

[KLA33E]

Hello!

I just recently had my Timing belt done and all the accesories, tensioners/pulleys etc. The shop who did the job is very reputable and have done many jobs like this before.
So when I got my car back I didn't notice anything, the car sounded fine. Drove it home, (3 hour journey) and just as im arriving when I do a pull from 1st gear in the parking space I hear a whinning noise from the engine? Was pretty tired so decided to look it up the next day. I read through some forum posts with people who experienced similar problems. That their belt would make squeaky noises, when warmed up mostly and around idle. In my case this is what i've discovered so far: Noise is there both when the engine is cold and warmed up and only seems to be apparent from 1000--1500rpm. Anyone have any ideas what this noise can be?!? More frustrating than anything!

The timing belt kit installed is a Blueprint oem replacement.

Video how it sounds: https://m.youtube.com/watch?v=OEsFwTc3Rp0

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Edited September 5, 2016 by KLA33E

[Aussie_Delivered_R32_GTR]

Unfortunately non OEM belts can be noisy.

My V-Spec II had a Gates belt on it and it was ridiculously loud,

Another GT-R I had had a very expensive competition belt on it and it was even worse!

Both were replaced with OEM and they were as quiet as a mouse.

You simply can't beat a genuine OEM Nissan belt from Nissan for noise.

Bob.

[KLA33E]

Okey! I was just in Contact with the shop. Im taking her back to them for inspection. Will post here how it goes.

[djvoodoo]

I have a Gates racing belt on my 34R. Sounds very similar to the video you posted. As people have said, aftermarket (gates) are notoriously noisy.

My Gates has been on the car now for 20 Thou K's. No issues

[Dobz]

It's just not the right tension is all, though there is a chance it could be a quality issue with blueprint brand. I have a gates belt that is hardly noticeable.

Edited September 6, 2016 by Dobz

[KLA33E]

(Update) We loosened everything up, starting with the easy stuff, servo, ac, and so. Noise was still there so we removed the timing belt. Then discovered that the tensioner pulley had residues of rubber on it from the belt probably? So the tensioner pulley was taken off and inspected for damage but seemed fine. Everything was removed and installed back together.

So my guess is the belt was put on a little bit too tight. The tension was doubled checked. Anyway the car is much quieter now, but I can still hear a small belt noise on idle but it goes away when the car warms up and introduces another sound (when warm) when you rev the car and it drops off at 1000rpm.

Overall I reckon the car is quieter now than before but not perfect. Guess i'll just have to drive it for a while and see if it goes away and if not, I may replace it with an Oem Nissan belt. 

 

Edited September 9, 2016 by KLA33E

[ADM33T]

Same issue on my R33 S2
Timing belt done at 140ks, factory belt... Purred like a kitten before.

Approx week after getting it back it developed the exact same noise.

Was told that it maybe evident prior to even getting done and sure enough it turned up a week later.

As we all find out OEM just can't be beaten for it.

Pretty sure mine was a gates belt.