Rear chain lubrication screw

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stevewhitt
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Rear chain lubrication screw

Post by stevewhitt »

Hi Guys

There is a hole in my primary chain cover which needs, I believe, a chain lubrication screw!

The part book lists 5770-43, which I think is correct - please let me know if I am wrong.

I get the feeling there should be a screw in addition to the needle?

I can't seem to find anyone who sells one. Drags doesn't even list it, neither do ACMEStainl.

Any ideas very welcome.
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simon.holyfield
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Re: Rear chain lubrication screw

Post by simon.holyfield »

The screw has a needle point on the end and a knurled cheese head - there's one here:

https://draganfly.co.uk/shop/70890/adju ... t/#5770-31
cheers

Simes

'51 Square Four,
'58 Huntmaster,
'42 W/NG,
'30 Model A
https://ariel-square-four.blogspot.com
stevewhitt
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Re: Rear chain lubrication screw

Post by stevewhitt »

Thank you very much Simon, for some reason, not in my parts list.
JohnnyBeckett
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Re: Rear chain lubrication screw

Post by JohnnyBeckett »

hi some clutch chain cases just have a screw on the outer case and some have a longer tapered screw and spring to lube the rear chain i think the longer ones are on the open rear chain guard the fully enclosed chain guard has a rubber pipe from the oil tank to lube the chain on my Ariels with the long screw i turn it in to turn the oil off and stop the oil getting on the rear tyre and i lube the chain with a spray on lube and once a year i take the chain off a wash it and if it is ok i put it in grease you get in tins and heat it up :D
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Roger Gwynn
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Re: Rear chain lubrication screw

Post by Roger Gwynn »

The type you are looking for was only fitted to the few contracts with steel chain cases instead of the usual ally ones. They used I different arrangement with a plunger, Screw and spring. I have never seen one but I may have a pattern that I can draw for you.
Roger Gwynn, Membership Secretary, curator of the Machine Register and the works drawings. Director of Draganfly Motorcycles, Craven Equipment and Supreme Motorcycles mostly retired.
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