Jump to content
SAU Community

Is My Timing Belt On The Way Out?

brodie_84

By brodie_84,
in General Maintenance

 Share

Recommended Posts

brodie_84 Contributor

brodie_84

Posted
Posted

I just picked up an R33 gtst s2. It needed a new diff and radiator so I've just finished replacing those and today I just noticed a slight whirring noise, which I think is coming from the timing belt cover.

Has anyone had this noise before? It only does it just off idle then it's fine after that. I've already ordered a new timing kit and water pump today which I'll fit on Friday, and hopefully that fixes it.

The motor has done just over 100,000kms so I'm gonna play it safe and replace the belts and pulley, and water pump while I'm at it.

Link to comment
https://www.sau.com.au/forums/topic/325911-is-my-timing-belt-on-the-way-out/
Share on other sites
Kinks Grand Master

Kinks

Posted
Posted

100k service = change timing belt. you're due so change it, interference motor means things get ugly if it snaps.

aftermarket belts eg gates make some noise anyway, but if yours hasn't been done and it's the OEM belt then it could be a warning sign that you should change it!!

i never heard a peep out of my OEM belt, got a gates on there now and it does make a slight whirr just off idle but they often do that.

brodie_84 Contributor

brodie_84

Posted
  • Author
Posted

Yea I'm prayin it's only the timing belt. I bought the car off a mate and he was straight up with the few things that were wrong with it and he did mention the timing belt hasn't been done yet. The motor sounds perfectly smooth, only the slight whirr just off idle. My parts should get here Thursday, so I should have it all completed by Friday arvy. I'm massively keen to get it on the road but don wanna playin Russian roulette n end up blowin the motor by drivin it with the old belt.

Andy R33 GTS Apprentice

Andy R33 GTS

Posted
Posted

Hey guys, I am having the same issue ....HOWEVER,

my 96 R33 GTST (100km covered), was due for a timing belt, especially as I only just got the car a few months ago and didn't know if its been done.

I bought a timing kit, had it fitted, and within 2 weeks I am getting a whirr/growl from top of timing cover,

the noise only happens a few hundred RPM over idle and goes when revved higher, I have noticed that the growl goes once its warm (after a few mins) but have also notice when quite hot... I am getting a high pitched groan/moan from the same area.

Is the idler bearing shot? or tensioner? or is it just a noisy belt?

My other concern is that the tensioner has been set too tight and its worn the bearings ... is this possible?

Note, The noise wasn't there before the timing belt was done. :down:

Muchly appreciated if anyone else can shed some light?

Andy

Andy R33 GTS Apprentice

Andy R33 GTS

Posted
Posted
New belts usually do that before theyre settled in, If it's a Gates timing belt, completely normal, might need retensioning down the track if it still does it

So a little growl just above idle for a few minutes is normal?

will it quieten down with age? Is this the same for the hum/whine when it is warm?

Thanks

brodie_84 Contributor

brodie_84

Posted
  • Author
Posted

so, i changed the timing belt yesterday and changed the tensioner and idler pulley while i was at it. The water pump was weeping out of the 'tell tale' hole so i replaced it as well.

It would have been approximately a 4 hour job, but my mate that was helping me accidently snapped off one of the 6mm bolts that holds the top timing cover on. Then it turned into a big mission to find a small enough ezi-out kit in town. And in the end I ended up drilling out the bolt and tapping it to an 8x1.25 hole instead and now its all sweet.

Anyways, now the new belt is fitted, the whirring noise that was there before, is now completely gone :-)

There is now the higher pitched whining/whirring noise... which is obviously characteristic of a new timing belt until it runs in.

But other than that, everything looks fine.

  • 4 weeks later...

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • silviaz
      Need AC Compressor for R32

      By silviaz · Posted

      Ah yep. I asked a auto electrician about getting a cheap rebuilt alternator vs a new one. He also said he used to it back in the day but it ended up costing similar to what a new one would and recommended getting a new one,.
    • silviaz
      Will I Need A Retune After Cahanging My Catalytic Converter ?

      By silviaz · Posted

      Ah, to clarify if the car has already been tuned and has been modified and you want to go from a oem cat to a 100 cell or decat or vice versa.Are you saying that the car doesn't need to be tuned after a cat change if it's already been tuned?
    • Komdotkom
      High temp brake fluid?

      By Komdotkom · Posted

      This has been covered a bazillion times but google wet boiling point vs dry. Motul is only good when it's fresh, once it absorbs moisture it gets pretty average very quickly. So as above, make sure you change it if you're going racing. I run the Endless brake fluid in mind, but only because a mate is a distributor and it's cheap. It's not quite as good as SRF but I'm running 380mm rotors on a Skyline so it's not like they get hot.
    • Kinkstaah
      Does 98ron contain ethanol?

      By Kinkstaah · Posted

      That's the thing, they still add it and it makes fuel cheaper, implying adding 10% of it drops the cost of 91 by what, 5c a liter? I remember when it was barely half the price of 98. Because you know, 85% of what is in the fuel is way cheaper than 91 fuel is by volume.
    • GTSBoy
      Need AC Compressor for R32

      By GTSBoy · Posted

      Auto electricians that do repairs on automotive AC systems can source service kits. I don't know where they actually source them. I do know that there is one available for the R34 comp that I would need it for. If you have to pay someone to dismantle, clean and do needed repairs and fit kit contents, then you'd probably end up spending a good fraction of the cost of a new one. I would not be paying for that, because I would be doing it myself. My mechanic (bro-in-law) will happily source what is needed. Back in the day (like in the 80s and 90s), rebuilding an AC compressor was the standard approach, same as for starter motors, alternators, etc, because new replacements were v. expensive. After the China manufacturing boom and the rise of the disposable approach to everything, people just started throwing broken/worn stuff away and not rebuilding things.
×
×
  • Create New...