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Offline AvgBear

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Re: Noisy clutch basket
« Reply #10 on: July 15, 2020, 05:52:29 PM »
The T800's Primary gear drive (from crankshaft to clutch) is a, normally somewhat noisey, straight-cut gear drive -- but, it is "spring-loaded" in order to keep it quiet.
The clutch basket, when engaged (h/bar lever released), is quiet b/c the clutch springs press everything together. The clutch plates can, however, rattle in the basket's grooves - if sufficiently worn? - when the clutch is released (h/bar lever pulled-in).
When the engine is running in neutral with clutch engaged the transmission's input shaft is turning. First gear's pinion is cut (affixed) to the input shaft and, so, is also turning. That 1st gear pinion is driving the 1st gear on the output shaft which is running free (since not engaged by a shift-fork) on a bushing on the output shaft. If that bushing is worn?, some noise may be produced.
Other gears may be turning - some on bushings - as well?
Another source (from the gearbox) could be due to the shifting drum not being fully "detented" and allowing shift-forks to be sliding components into improper locations? Fairly easy to check the shift-drum detent location.
There are a terrible lot of lies going about the world, and the worst of it is that half of them are true.
WSC

Offline AvgBear

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Re: Noisy clutch basket
« Reply #11 on: July 15, 2020, 11:03:05 PM »
n.b. From the above ^^^: "when the clutch is released (h/bar lever pulled-in)" = clutch disengaged.
There are a terrible lot of lies going about the world, and the worst of it is that half of them are true.
WSC

Offline Alan215

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Re: Noisy clutch basket
« Reply #12 on: July 16, 2020, 07:36:18 AM »
Ok when in neutral clutch leaver not pulled on the h/bar IT is noisy noticed low revs 2-3000 it seems gravely vibrations if u know what I mean

Offline AvgBear

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Re: Noisy clutch basket
« Reply #13 on: July 16, 2020, 11:00:15 PM »
Okay, clutch lever not pulled in (clutch engaged) means that the transmission's input shaft in the gearbox is turning along with a gear (or two? and a bushing or two?). The transmission's output shaft is not turning b/c neutral is selected (and it has the sprocket & chain).
The clutch is removed as a noise source b/c it is "engaged" (springs pushing all the parts together) and has no free, moving, parts inside.
This leaves transmission parts as the probable source of any noise? 
There are a terrible lot of lies going about the world, and the worst of it is that half of them are true.
WSC

Offline Alan215

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Re: Noisy clutch basket
« Reply #14 on: August 06, 2020, 05:52:51 PM »
Hello again Ive had a garage check this out and he says its normal he started it up and revel it to about 3000 so was happy but now Im finding when riding it at about the 3000 in 1st 2nd it sounds like a straight cut gear box u would have on a car so does this shed any light on what it could be or again am I paranoid
Thanks

Offline ozrob

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Re: Noisy clutch basket
« Reply #15 on: December 04, 2020, 01:23:06 AM »
My 2018 XCA has the same issue, rumble in neutral clutch engaged, the noise goes away when clutch dis-engaged(lever pulled in) as some have said in neutral the only things spinning is the input shaft so it could be the input shaft outer bearing as I can also feel the rumble when riding at 4000RPM in all gears. My dealer has no idea and did say the noise is normal....or the clutch basket....not sure on how it can be the clutch basket as the friction and drive plates are compressed together by the springs so technically the inner and outer are one drive unit with no free play, the oil pump is driven from the outer basket, which is constantly in motion, as the inner basket stops spinning when the clutch is dis-engaged, and the transmission input shaft stops spinning.
The dealer even suggested in replacing the pressure plate bearing that is housed in the inner clutch basket....I checked the bearing and it spins freely....thus it has to be a bearing on the transmission input shaft. The bearing is retained on the shaft within a housing, according to the workshop manual the input shaft needs to be removed ( after splitting the engine case) and the bearing pressed off.
Big job for the average workshop.....thus the noise is normal....just because the noise is normal does not make it correct, as the noise was not there when the bike was brand new, and the noise appeared at around the 1000km mark, and now has 30,000km and the noise is louder.
« Last Edit: December 04, 2020, 01:24:57 AM by ozrob »

Offline suffolktiger

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Re: Noisy clutch basket
« Reply #16 on: December 04, 2020, 06:02:47 PM »
Both my  previous 765 street triple and now my tiger have done this from very early, regardless of oil change etc.  Ive ridden a few others and they were all the same, including the speed triple interestingly.

I dont like it but it does appear to be normal

Offline boldie

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Re: Noisy clutch basket
« Reply #17 on: December 04, 2020, 07:51:03 PM »
My 2020 plate XRT does this too, started at around 500 miles.

Not keen on it, but comforting to know it's "Normal".

Offline chris_notts

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Re: Noisy clutch basket
« Reply #18 on: December 05, 2020, 05:24:23 PM »
Mine is 2014 and now has about 23K miles on it and its always had a rattle when in neutral, more or less from new. It still occasionally bugs me when I notice it, usually sitting at traffic lights and its a bit more noticeable if the engine is cold. It's been regularly serviced every 6K mmiles by a Triumph specialist  the last twice at 12K and 18K miles.

He commented when he first serviced it at 12K that noisy rattly clutches are pretty regular on Tiger 800s and Street Triples and nothing to worry about. It disappears when the clutch is pulled in, so therefore guessing it might be rattly clutch plates or something like that. My view for what its worth is if a guy who makes his living servicing Triumphs, says nothing to worry about and doesnt try and sell me anything extra to "correct the rattle", I'll trsut what he's saying and not worry about it.  :001: :350:

 


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