Layshaft noise
Discussion
IBDAET said:
THe noise is actually the clutch release bearing, not the gearbox. As Mark says this is common, and not really an issue. It will get really noisy before it fails, then I'd replace the whole clutch.
That's a relief I was under the impression its the gearbox ,thanks for your help.Eccles52 said:
My Sigma 150 has the same thing, it's been like it from new (2007) and has done 15K without getting any worse so I would think it's fine although mine is a much lesser machine
Admittedly it's still bloody annoying and I'd like to fix it
Interestingly , does yours sound like the engine is knocking until you depress the clutch ? Or have you a different noise.Admittedly it's still bloody annoying and I'd like to fix it
Ahh, hah, perhaps I have a different noise then. Mine is a rattly rumble which slows and disappears when you put your foot on the clutch - you can hear the input/driven shaft slow down in the box.
Not sure if heavy duty bearings would cause this but can't imagine Caterham would fit them as standard.
Not sure if heavy duty bearings would cause this but can't imagine Caterham would fit them as standard.
Flyuwhjeel has nothing to do with it. It is 90% CRB, or if the car has had its neck wrung and uses a sprung clutch pressue plate it can be the springs in the clutch plate rattling where they have becoime loose.
On an R500K there is no organic plate that is really capable of handling the required torque capacity, so there is a slim chance its the plate.
On an R500K there is no organic plate that is really capable of handling the required torque capacity, so there is a slim chance its the plate.
IBDAET said:
Flyuwhjeel has nothing to do with it. It is 90% CRB, or if the car has had its neck wrung and uses a sprung clutch pressue plate it can be the springs in the clutch plate rattling where they have becoime loose.
On an R500K there is no organic plate that is really capable of handling the required torque capacity, so there is a slim chance its the plate.
Thanks, if what you say is correct and I decide at some point to replace the clutch ,given the high torque, is there a more substantial kit I should go for, or should I keep oem.On an R500K there is no organic plate that is really capable of handling the required torque capacity, so there is a slim chance its the plate.
IBDAET said:
Flyuwhjeel has nothing to do with it. It is 90% CRB, or if the car has had its neck wrung and uses a sprung clutch pressue plate it can be the springs in the clutch plate rattling where they have becoime loose.
On an R500K there is no organic plate that is really capable of handling the required torque capacity, so there is a slim chance its the plate.
Thanks, if what you say is correct and I decide at some point to replace the clutch ,given the high torque, is there a more substantial kit I should go for, or should I keep oem.On an R500K there is no organic plate that is really capable of handling the required torque capacity, so there is a slim chance its the plate.
When I searched about this some years ago this is what I found: "The first motion shaft and laygear are dancing around a bit due to the fact that they are effectively idling with alternating accelerative and deccelerative cycles in time with the engine"
Apparently Caterham has varied the tolerances over the years and some boxes do it and others don't
Apparently Caterham has varied the tolerances over the years and some boxes do it and others don't
There are only two clutches suitable for road use, unless you want to get into race clutches which will only last a couple of thousand miles (been there, done that). Today I run a 260bhp K and have done 5k miles on a Helix organic clutch having wrecked the AP alternative sold by Caterham previously with a less powerful engine.
The weak point is the cover, not the drive plate. I have the Helis whihc has a drive plate rated at 130lb/ft and I'm putting around 180lb/ft through it with no issues of slippage.
The weak point is the cover, not the drive plate. I have the Helis whihc has a drive plate rated at 130lb/ft and I'm putting around 180lb/ft through it with no issues of slippage.
MoPho said:
When I searched about this some years ago this is what I found: "The first motion shaft and laygear are dancing around a bit due to the fact that they are effectively idling with alternating accelerative and deccelerative cycles in time with the engine"
Apparently Caterham has varied the tolerances over the years and some boxes do it and others don't
I was under the impression it was this , I presume when depressing the clutch the shaft becomes motionless, thus no noise.Apparently Caterham has varied the tolerances over the years and some boxes do it and others don't
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