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Rb25 Noisy Timing Belt

MCR33

By MCR33,
in General Maintenance

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MCR33 Enthusiast

MCR33

Posted
Posted

I'm not too sure wtf it is now... i've checked over a few things but i want other peoples opinions on the subject first as well.

Timing belt was replaced awhile ago, (3-4 Months) and since then i've driven it daily. My current issue is that it wasn't noisy... but now it is, and it becomes concerning when i can hear it over my turbo.

I know from checking it, that it's coming from the left pulley, i just want to know what other people think it is.

It's driving me nuts!!!

Plus, want to know if it's a good or bad idea to run my car without it's belt cover.... because it was a bitch to get off.

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https://www.sau.com.au/forums/topic/400782-rb25-noisy-timing-belt/
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MCR33 Enthusiast

MCR33

Posted
  • Author
Posted

@JJman, Just a Dayco Timing belt was the replacement and no the sound is exactly the same with the cover on and off.

@Moodles, Thanks for clearing that up.

@Dobz, Really? Because the sound is LOUDEST from the Left cam pulley but i'll give it a go and see what happens.

It was replaced proffesionally at a shop, but no i don't think the bearings were changed.

Luke stock R33 Rookie

Luke stock R33

Posted
Posted (edited)

I agree with Dobz ask for an invoice stating that the bearings were changed.

(Side comment)Recently got my timing belt done for shits because I didn’t know if it had been done at 100,000Km and my mechanic recommended that the bearings be changed as well . (car doesn’t back fire now)

Do u live in a dusty area because I know with trucks that i drive get squeaky belts because a glaze has built up on the pulley from bull dust and alike (because i didn’t care i just put a bit of soapy water around the problem area and the sound would go away)

?

Edited by Luke stock R33
89CAL Grand Master

89CAL

Posted
Posted

I can't believe the belt was changed, but not the bearings as well, and by the sounds of it the crank and cam seals weren't done either.

I don't think its really practical to do a front seal with a timing belt change. Cam half moons maybe but this can be done easily anytime, I didn't do mine in my 100,000km service, did them when I resealed my can covers

MCR33 Enthusiast

MCR33

Posted
  • Author
Posted

And since i've been running the machine without the cover, the CAS has been running fine, was also checked by an RB proffesional and he's happy with how it's set.

Cover will be going back on, but yeah.

Dan_J Veteran

Dan_J

Posted
Posted (edited)

mine sounds just like this after i put new cam shafts in, i think i put the idle bearing spring under the stud on the block instead of over,will this cause much harm to the engine?

figure i'll fix it in a few months once i get a carport or it stops raining for awhile

Edited by Dan_J

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