So, recently I installed a set of Hayame camgears.
All good and well...they're still sitting at 0deg adjustment.

At the same time I cut out the side of my valve cover. So I can adjust them. And ofcourse look at them.
I have the Invidia G300 on my car, wich is LOUD. But day before I put the silencer back in. Now I noticed a whirring sound.

At first I thought my tranny was going bad. But after closer inspection, it's definately the camgears.

The belt looks fine. They don't seem to rub on anything. No burning smell or unusual heat. No wobble. Just that whirring noise. Sounds like a frickin supercharger.

Is this caused by the aftermarket gears? Or do all of them do this, but I just didn't notice until I opened up my valvecover?

What are your thoughts?

 

Last time i heard that on a customers car, we found out the gears had ever so slightly been rubbing on the inside of the gear and the head itself because they stuck in a bit further. We had to space them out just a couple mm's to fix the problem.

 

are those cam gears anygood?i just bought a set thats why i ask.

 

yea if I had to put money on it I would say its rubbing on the inside of the gears somewhere next to the head.
Matt

 

are you sure it isnt your distro bearing going bad?

also could the camgears could be hitting that stupid timing cover behind it..

 

I'll look for more symptoms of rubbing.
I can't think of anything else either. The belt is just a few K old. SO that can't be it.

 

I agree with the previous posts, could be rubbing just alittle from behind the gear(s). On a side note, those are nice cam gears, they go well with the VC.

 

thats a badass picture


do you have high-res of it i wanna use that as my computer backround

 

from the picture it looks like ur belt is grinding the camgears. look at it, look like some of ur camgear been eaten by the belt, maybe u tight it too tight?

 

Camgears are used. They came a little worn. Like I said. Not a mark on the belt.

If you remove the ".sized" in the image link you'll get a bigger version.

 

how new is your water pump. the bearings in that could make a wiring noise. try using a long screwdriver and place the tip on the pump and put it handle up to you ear and listen.

 

Pump is a few thousand miles old.

My ears are fine. It's DEFINATELY coming from the camgears.

 

I had the same sound on my Z6 with a Skunk2 gear. It was rubbing the plastic on the rear timing cover.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 91SiZ6 &raquo;</TD></TR><TR><TD CLASS="quote">I had the same sound on my Z6 with a Skunk2 gear. It was rubbing the plastic on the rear timing cover.</TD></TR></TABLE>


zingggggggggg

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Deetz &raquo;</TD></TR><TR><TD CLASS="quote">Last time i heard that on a customers car, we found out the gears had ever so slightly been rubbing on the inside of the gear and the head itself because they stuck in a bit further. We had to space them out just a couple mm's to fix the problem.</TD></TR></TABLE>

How did you go about spacing them out? My TAS adjustable cam gears rubbed too so I had to ditch the plastic cover that sits hard up against the block.

 

I've had whirring noises before; they were all from the belts (timing, alt., p.s.) being overtightened or bad bearings. Not saying your cam gears aren't rubbing, I can't hear your motor from this far