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Author Topic: gearbox MK1  (Read 6521 times)

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Offline gmh

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gearbox MK1
« on: 16 Nov 2019 at 09:50 »
Hello from Slovenia!
I bought a Douglas 1948 mark1 (https://www.douglasmotorcycles.net/index.php?topic=1035.0)
The engine is now runing ok but in the midle of testig it jump in gear and block it.
I disassemble gearbox and there is no parts broken or damiged. Only problem i found is this on video.
https://youtu.be/AlnvBUQ0_Oo
Sory for my english.
Write slow i cant read fast. :lol:
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Offline Neville Heath

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Re: gearbox MK1
« Reply #1 on: 17 Nov 2019 at 14:46 »
Hi there in Slavenia. I think the brass bush has moved on the shaft towards the gearbox.
Neville Heath 





Attachments converted to linked images - Dave, 07Feb2021
« Last Edit: 07 Feb 2021 at 07:19 by Dave »
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Offline Neville Heath

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Re: gearbox MK1
« Reply #2 on: 17 Nov 2019 at 14:54 »
My photo shows where the bush should be. If it is too far forward it would foul the inside of the input part.
Neville
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Offline gmh

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Re: gearbox MK1
« Reply #3 on: 17 Nov 2019 at 17:41 »
Thank you Neville
You are the best! This is right foto .
Wellcome to https://en.wikipedia.org/wiki/Slovenia (not Slavenija)
Gregor M. Humar
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Offline gmh

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Re: gearbox MK1
« Reply #4 on: 17 Nov 2019 at 18:25 »
Problem is located.
Oil hole is blocked and no channels. 

Thanks!
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Offline Eric S

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Re: gearbox MK1
« Reply #5 on: 17 Nov 2019 at 21:26 »
Hello you (?)
It looks like somebody made a sleeve of brass without all the channels but on your video the teeth do not seems to fall in front of notches. Can't you rotate the shaft around?

Eric
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Offline gmh

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Re: gearbox MK1
« Reply #6 on: 06 Mar 2020 at 19:10 »

new part is made

Gregor
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