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cylinder barrel

BSA M20 cylinder barrel photo bsa wm20 cylinder.jpg

Is this still usefull ? Because of the damaged top of the liner

Thanks
John

email (option): john.kater@chello.nl

Re: cylinder barrel

Hello John.

It is not optimal and in is hard to judge from the photo
How deep it goes down the barrel, but I have a WM20 that runs great
With such a barrel.

I believe that as long as there is still enough clearance of good barrel
Above the top compression ring, (say about 2mm?)
It is usable, but it is only my opinion from experience.

Cheers,
Noam.



Re: cylinder barrel

And fitting a new liner seems to be rather easy - someone wrote recently (never tried it myself, though)

Re: cylinder barrel

Michael
And fitting a new liner seems to be rather easy - someone wrote recently (never tried it myself, though)


Normally it's easy enough to replace a liner if you have access to a hydraulic press. I believe liners are available from Draganfly.

email (option): teladelujo@msn.com

Re: cylinder barrel

I bought a new liner recently from the late Goef Myers wife (Russell Motors) for £25. Ron

email (option): ronpier@talk21.com

Re: cylinder barrel

Thanks for the response, the reason for changing my barrel is the damaged fins.
But I think € 30,- is not much for it, but on the other hand this outlet guide is hammered.

John

email (option): john.kater@chello.nl

Re: cylinder barrel

Hello John.

The exhaust valve guides are often find in this way because of overheating,
Or because not installed properly (It should sit lower than the intake guide)
It is not a big problem or expense to replace it, and with a simple tool
(Shown at the manual and easily made by lathe) you can replace it yourself.

Please note that the IN and EX guides are different length.

Whenever I install a barrel I replace them just to start from fresh state.

Noam.

Re: cylinder barrel

Also take in mind that the exhaust seat looks much to wide so this would need attention too.

Good luck, Michiel

Re: cylinder barrel

Michiel W
Also take in mind that the exhaust seat looks much to wide so this would need attention too.

Good luck, Michiel


Thank you, but when I enlarge the photo, it seems the inlet has a larger seat.

Here a different look at things.

John

 photo bsa m20 cylinder.jpg

email (option): john.kater@chello.nl

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