Interesting Job in yesterday.. dropped valve.

Steptoe

Him/Bloke/Fella.
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Delivered all the way from France for me to find the problem and fix it after the owner was quoted ridiculous costs in her home country.. The dealer had suggested the engine had broken a con-rod, even though the bike started and ran on one cylinder but with a very loud knock (a twin cylinder engine with a broken con-rod wouldn't run at all) and with a repair bill running into thousands or the possibility of the bike being scrap -

Turned out was a dropped valve that had embedded itself into the piston, after ricocheting around the head.. So a fairly straightforward repair :thumb2

2lkwqbb.jpg


2nt8r54.jpg
 
Which cylinder is it? Any build up of carbon on the other exhaust valve stem?

Al
 
Which cylinder is it? Any build up of carbon on the other exhaust valve stem?

Al


Righthand cylinder. Low mileage bike, i think it's a 2005 model, french number plate so can't tell by the reg. Everything else looks normal.
 
That head casting looks only lightly damaged. New seats, or a complete new head ?

Why does it always seem to be an '05 model bike and right hand cylinder ??
 
Why does it always seem to be an '05 model bike and right hand cylinder ??

I wonder if it's been dealer serviced and had the updates done. There were several revisions to the fuel map on the early 1200's. The head tech in my local dealers told me that failures on the right hand pot of early bikes was due to a coding error which made that side run too lean. :nenau
 
We didn't need a screwdriver pointing to the offending valve :nenau

:D :D

:beerjug:
 
We old motorcyclists didn't Mick but you know how it is with some of these young uns....:augie

You're right of course Mike, they'll not even know what a valve is, let alone what it does :eek:

Hope my grammar OK :D

:beerjug:
 
Im sure the thing they made in 2005 had gear box valve issues, looks like this was what happened in this case.
 
Thank you for corroborating my point.... :D

Yes the pic clearly shows the final drive was ok and its a gearbox issue as a result of the long way round, they used inferior products and mass produced stuff that has caused problems for a Galec friend..
 
Yes the pic clearly shows the final drive was ok and its a gearbox issue as a result of the long way round, they used inferior products and mass produced stuff that has caused problems for a Galec friend..

I think you mean "Gallic", old chap.... :)
 
Yes but were there any dusky dudes hiding in the tool box, last seen bolting across East London?

Surely getting it to you must have been a far more interesting tale than spannering?
 


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