Delaminated Clutch

Steptoe · Nov 3, 2021

A warning. This is what happens after jet washing a bike and putting it away for a long period.

The engine has been started and run a few times during that time, but the clutch was never operated.

The metal in the friction material has corroded and stuck to the cover plate and pressure plate.... owner started the bike, put it in gear and BANG... it's in pieces.

Oh dear, how sad, never mind, too bad.

UturnTony · Nov 3, 2021

I think delaminated is under describing that mess

__YANNICK__ · Nov 3, 2021

Oh my god. How long did they store it? I would not have expected that. What could have prevented it? Running the gears a couple of times after the jet washing before storage or riding it while it was being stored?

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Posh Pete · Nov 3, 2021

__YANNICK__ said:
Oh my god. How long did they store it? I would not have expected that. What could have prevented it? Running the gears a couple of times after the jet washing before storage or riding it while it was being stored?

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Don't use a jet wash would be a good start! I learned that the hard way on my R60/6 40 odd years ago. Fortunately BMW picked up the damaged front wheel bearings under warranty. A bucket of cold soapy water, a rinse and then a ride to dry it off, is all you need.

MikeS · Nov 3, 2021

Excuse my ignorance but I thought the clutch was sealed. How/where did the water get into the clutch?

Posh Pete · Nov 3, 2021

MikeS said:
Excuse my ignorance but I thought the clutch was sealed. How/where did the water get into the clutch?

Nope. If it was sealed, how would the starter motor access the starter pinion on the flywheel? A high pressure jet will get in there no problem but not elbow grease!

Steptoe · Nov 3, 2021

MikeS said:
Excuse my ignorance but I thought the clutch was sealed. How/where did the water get into the clutch?

Water gets in the same way as oil leaks out when a crank/balance/gearbox input shaft seal goes.

UturnTony · Nov 4, 2021

Posh Pete said:
Don't use a jet wash would be a good start! I learned that the hard way on my R60/6 40 odd years ago. Fortunately BMW picked up the damaged front wheel bearings under warranty. A bucket of cold soapy water, a rinse and then a ride to dry it off, is all you need.

I agree, jet washes can be death to a bike. There are few riders in our Blood Bike group with a clean bike fetish that insist on washing the bejasus out of them and, posting pictures up on FB of them doing so :blast

The front wheel bearings on the Honda failed at an early stage and i reckon it was due to all the jet washing it got as there wasn't a scrap of grease in there when it was stripped down.
The recently acquired 1250RT is now getting the "treatment", i await developments

dashfixer · Nov 4, 2021

UturnTony said:
I agree, jet washes can be death to a bike. There are few riders in our Blood Bike group with a clean bike fetish that insist on washing the bejasus out of them and, posting pictures up on FB of them doing so
The front wheel bearings on the Honda failed at an early stage and i reckon it was due to all the jet washing it got as there wasn't a scrap of grease in there when it was stripped down.
The recently acquired 1250RT is now getting the "treatment", i await developments

I agree with you completely. But as far as the Honda is concerned, 12 years ago I had a Deauville 700 from new and it was never jet washed. When I came to replace the rear tyre after about 8 months I found the rear wheel spindle and spacers totally corroded. I'm an aircraft engineer with a very good tool collection and it took quite a bit of work with a rivet gun to loosen everything. I had a look at the complete bike lubrication and couldn't find any sign of grease. Honda said that it was no worse than they would expect for a bike of it's age (8-9 months!).

Steptoe · Nov 4, 2021

Jet washing and all the muck off shite that’s used is the worst thing you can do… Lots of seized alternators appearing on the 1200 models due to being jet washed and then put away in the garage… wet copper and aluminum aren’t good bedfellows…. Here’s just a small example of the rather large collection of completely fecked alternators I’m gathering, all due to corrosion. The bikes are lovely and shiny on the outside, but inside and out of sight is where the damage is done….. £700 for a new alternator, thank you. They can’t be reconditioned when this happens, and good luck finding a used one.

__YANNICK__ · Nov 4, 2021

What's wrong with the muc off stuff? I'm genuinely asking. I jet wash my bike (but I try to stay further away when getting to delicate areas) and use he big pink muc off spray and thought it should be fine. Especially the latter...

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transalper44 · Nov 4, 2021

Best thing is spray with Muck-Off, wait five minutes and then use a 5 litre plastic garden spray, pump it up, shifts the dirt with out the force of a jet wash, though if you've been green laning perhaps not powerful enough !

JJH · Nov 4, 2021

__YANNICK__ said:
What's wrong with the muc off stuff? I'm genuinely asking. I jet wash my bike (but I try to stay further away when getting to delicate areas) and use he big pink muc off spray and thought it should be fine. Especially the latter...

Sent from my AC2003 using Tapatalk

Can’t remember the specifics but there was a time when there was too much acid in it. Can’t remember if it was mucoff or one of the other brands. JJH

Steptoe · Nov 4, 2021

__YANNICK__ said:
What's wrong with the muc off stuff? I'm genuinely asking. I jet wash my bike (but I try to stay further away when getting to delicate areas) and use he big pink muc off spray and thought it should be fine. Especially the latter...

Sent from my AC2003 using Tapatalk

Used over long periods of time It used to rot electrical wiring.

BillyBoxer6 · Nov 4, 2021

UturnTony said:
The recently acquired 1250RT is now getting the "treatment", i await developments

Your lot have a 1250RT????

And here we are bimbling around on NC750X's and the old Deauvilles. :nenau

I AM NOT remotely jealous!!!

JohnnyBoxer · Nov 4, 2021

Steptoe said:
A warning. This is what happens after jet washing a bike and putting it away for a long period.

The engine has been started and run a few times during that time, but the clutch was never operated.

The metal in the friction material has corroded and stuck to the cover plate and pressure plate.... owner started the bike, put it in gear and BANG... it's in pieces.

Oh dear, how sad, never mind, too bad.

Which GS genre?

Engineer · Nov 4, 2021

I use normal hose pressure and then an air dryer to clear water from all the nooks and crannies - alternatively take the bike for a ride of a few miles to blow out all the excess water after cleaning. NEVER put a bike away wet.

__YANNICK__ · Nov 4, 2021

JJH said:
Can’t remember the specifics but there was a time when there was too much acid in it. Can’t remember if it was mucoff or one of the other brands. JJH

Steptoe said:
Used over long periods of time It used to rot electrical wiring.

Thanks. I didn't know that. I jet washed my bike today (from a distance!) and did the muc-off and then acf-50 for the winter. Exactly what I shouldn't have aparently, bit reading this post got me excited about cleaning my bike.

Sometimes the brain messes up a bit

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Flipfly · Nov 7, 2021

Would never use muck off, it’s shit.

I prefer to use proper detailing stuff, it’s much gentler.

I use a jet wash, but I’m careful about how close I get, I have a hand held gun with a 20 degree nozzle so as not to have to powerful a ‘jet’.

Delaminated Clutch

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