Jump to content
SAU Community

Recommended Posts

When riding the clutch, particularly up my driveway, it will frequently begin to make a horrid grinding/drilling sound. I've noticed that if I push the clutch in, then attempt to go again, it just starts making the sound immediately once more. The only thing that will stop it from happening when I try to move again is if I let the clutch out for a few seconds in neutral. It also will occasionally (depending how long I allow it to make the sound) give off a strong burning metal smell....similar to an actually clutch smell, but distinctly not.

Also, recently there will be a very faint chirping/circulating squeak sound coming from the clutch area when idling in neutral, which disappears with even the *SLIGHTEST* touch of the clutch pedal...

Could this indicate a problem with my thrust bearing? The clutch is only about a year old, and has only done just under 20,000kms. I have only ridden it twice at about 3,000rpm for a second or two by accident, trying to get out of stupid traffic...though this smell is different to the above one. Otherwise, I am very easy going on the clutch itself, particularly changing gears. I wouldn't expect it to be damaged from use or worn out, which is why I don't think it's the cause.

The clutch is an Exceedy (I think heavy duty) organic

Thoughts?

yeh my money would be on the release bearing.

When riding the clutch, particularly up my driveway, it will frequently begin to make a horrid grinding/drilling sound. I've noticed that if I push the clutch in, then attempt to go again, it just starts making the sound immediately once more. The only thing that will stop it from happening when I try to move again is if I let the clutch out for a few seconds in neutral. It also will occasionally (depending how long I allow it to make the sound) give off a strong burning metal smell....similar to an actually clutch smell, but distinctly not.

Also, recently there will be a very faint chirping/circulating squeak sound coming from the clutch area when idling in neutral, which disappears with even the *SLIGHTEST* touch of the clutch pedal...

Could this indicate a problem with my thrust bearing? The clutch is only about a year old, and has only done just under 20,000kms. I have only ridden it twice at about 3,000rpm for a second or two by accident, trying to get out of stupid traffic...though this smell is different to the above one. Otherwise, I am very easy going on the clutch itself, particularly changing gears. I wouldn't expect it to be damaged from use or worn out, which is why I don't think it's the cause.

The clutch is an Exceedy (I think heavy duty) organic

Thoughts?

$800 will get you a full clutch kit replacement.

4 hrs labour is about the usual + bearing $40 if the clutch is ok. so say about half.

the thrust bearing itself will cost stuff all, the labour can obviously get a little pricey as your gearbox needs to come out

I don't anticipate there being an issue with the clutch, unless it is faulty. Otherwise it has received very little abuse whatsoever, and symptoms/troubleshooting is suggesting otherwise. At least that's some food for thought tho, thankyou. If the clutch is bung, I don't know whether I'll just leave it be for now, and get a good double plate and possibly new flywheel further down the track, or rip it out and sell it to my mate for sweet shit all...ehh we'll see, but if it's just the bearing then that's not much at all.

Thanks for the input :(

Pretty sure from what I've read the symptoms you're describing with the noise (with pressing clutch pedal) indicate more an input shaft bearing noise?

IE:

Foot off the clutch = noisy/rattling

foot on the clutch = noise instantly goes away

Input shaft bearing in gearbox is fked too Jrm, but I know that noise. It's the horrid grinding/drilling noise when I ride the clutch a little bit (1000-1500rpm) up my driveway that is the main symptom.

When I let my foot off at idle in neutral, it makes the sandy sound of the input bearing, but there's a slight chirping sound somewhere else. This goes away the instant I touch the clutch pedal and apply the TINIEST bit of pressure (not even depressing it at all, just enough to "load" or touch the thrust bearing)

I had the exact same issue with my old crappy NPC button clutch - it did not want to be riden at all.. Changed the entire clutch, pressure plate, release and spigot.

The clutch was worn badly from improper fitment, but not sure if it was that or the spigot that caused it. Either way do your self a massive favour and ensure that the idiot who fits it cleans the entire assemebly and bell housing of all grease, and use graphite powder for assembly instead. Demand it!!

Input shaft bearing in gearbox is fked too Jrm, but I know that noise. It's the horrid grinding/drilling noise when I ride the clutch a little bit (1000-1500rpm) up my driveway that is the main symptom.

When I let my foot off at idle in neutral, it makes the sandy sound of the input bearing, but there's a slight chirping sound somewhere else. This goes away the instant I touch the clutch pedal and apply the TINIEST bit of pressure (not even depressing it at all, just enough to "load" or touch the thrust bearing)

Where did you take your car to get the gearbox checked and how much, having troubles with my box,

Cheers

  • 3 weeks later...

Hey Troy, I'm sorry to hear about your clutch issues, as you know I replaced the clutch for you before I sent it down when you bought it (can't beleive its been over a year!)

The clutch in it is a Exceedy Sports Organic with a upgraded pressure plate from a R32 GTR HD kit. All parts were installed brand new and correctly by my one and only trusted mechanic.

It sounds from whats written here, your slave or throwout bearing could be the culprit, as for the heavy grinding at low revs, thats sounds more than likely a gearbox gear issue, ie your Input shaft, syncros ?

What was the result of dropping the box?

  • 3 weeks later...

Didn't drop the box, and yeah Zac I'm not sure if I've worded things right, but it's definitely not the gearbox. Technically the internals of the box are more or less stationary when it happens.

Good thing is I don't think it's happened since I said I was going to get the box dropped (which again, never went through)

The workshop I took it to said they sprayed some lube on a few bits (sounded to me as though they only did the pivot boot thingy which squeaked a little sometimes like rubber on rubber), but they may have lubed the thrust bearing too? if that's both possible to do, and possible without droopping the box...

So yeah Sorry Usamah, can't really help. Though if you understood what I was saying exactly and you're having the same sound...and not all the time, it might be the thrust bearing too. If you can drop your own gearbox out, have a look, otherwise the labour won't be cheap to have a look. I was advised to just deal with it until it gets worse, because if my suspicions were correct, when it finally eats shit, a thrust bearing is rather cheap anyways.

  • 5 months later...
Also, recently there will be a very faint chirping/circulating squeak sound coming from the clutch area when idling in neutral, which disappears with even the *SLIGHTEST* touch of the clutch pedal...

Sorry to bump up thread but this is all i could find.... Im having this squeaky noise coming from the clutch area as well, and as Trozzle said, with a very light push onto the clutch, the noise goes away.... what could this be? should i be worried?

Thanks.

It will be your spigot bearing in the back of the crank or the throw out bearing is shot.... that is all, but you will need to take out the gearbox to do both.. Remember to soak the new spigot bush in oil before installation.

Thanks for that... any harm/danger leaving these alone for now? or should i do something about it now? (looking at buying a new clutch but not sure)

Cheers

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


  • Similar Content

  • Latest Posts

    • Yeah, all the crude is used for fuels and petrochem feedstocks (pesticides, many other chemicals, etc etc). But increasingly over the last few decades, much of the petrochem synthessis has started with methane because NG has been cheaper than oil, cleaner and easier and more consistent to work with, etc etc etc. So it's really had to say what the fraction either way is. Suffice to say - the direct fuels fraction is not insigificant. Heavy transport uses excruciatingly large amounts. Diesel is wasted in jet heaters in North American garages and workshops, thrown down drill holes in quarries, pissed all over the wall to provide electricity to certain outback communities, etc etc. Obviously road transport, and our pet project, recreational consumption camouflaged as road transport, is a smaller fraction of the total liquid HC consumption again. If you're talking aboust Aussie cars' contribution to the absolute total CO2 production of the country, then of course our share of the cubic mile of coal that is used for power generation, metallurgy, etc adds up to a big chunk. Then there is the consumption of timber. Did you know that the production of silicon metal, for example, is done in Australia by using hardwood? And f**king lots and lots and lots of hardwood at that. Until recently, it was f**king jarrah! There are many such sneaky contributors to CO2 production in industry and farming. NG is used in massive quantities in Australia, for power gen, for running huge water pumps (like, 1-2MW sized caterpillar V16 engines running flat out pumping water) for places like mine sites and minerals/metals refineries. And there are just a huge number of those sort of things going on quietly in the background. So NG use is a big fraction of total CO2 production here. I mean, shit, I personally design burners that are used in furnaces here in Oz that use multiple MW of gas all day every day. The largest such that I've done (not here in Oz) was rated to 150MW. One. Single. Gas burner. In a cement clinker kiln. There are thousands of such things out there in the world. There are double digits of them just here in Oz. (OK< just barely double digits now that a lot of them have shut - and they are all <100MW). But it's all the same to me. People in the car world (like this forum's users) would like to think that you only have to create an industrial capability to replace the fuel that they will be using in 10 years time, and imagine that everyone else will be driving EVs. And while the latter part of that is largely true, the liquid HC fuel industry as a whole is so much more massive than the bit used for cars, that there will be no commercial pressure to produce "renewable" "synthetic" fuels just for cars, when 100x that much would still be being burnt straight from the well. You have to replace it all, or you're not doing what is required. And then you get back to my massive numbers. People don't handle massive numbers at all well. Once you get past about 7 or 8 zeros, it becomes meaningless for most people.
    • @GTSBoy out of the cubic mile of crude oil we burn each year, I wonder how much of that is actually used for providing petrol and diesel.   From memory the figure for cars in Australia, is that they only add up to about 2 to 3% of our CO2 production. Which means something else here is burning a shit tonne of stuff to make CO2, and we're not really straight up burning oil everywhere, so our CO2 production is coming from elsewhere too.   Also we should totally just run thermal energy from deep in the ground. That way we can start to cool the inside of the planet and reverse global warming (PS, this last paragraph is a total piss take)
    • As somebody who works in the energy sector and lives in a subzero climate, i'm convinced EV's will never be the bulk of our transport.  EV battery and vehicle companies over here have been going bankrupt on a weekly basis the last year. 
    • With all the rust on those R32s, how can it even support all the extra weight requirements. Probably end up handling as well as a 1990s Ford Falcon Taxi.
    • Yes...but look at the numbers. There is a tiny tiny fraction of the number of Joules available, compared to what is used/needed. Just because things are "possible" doesn't make them meaningful.
×
×
  • Create New...