BSA Owners' Club Workshop Discussions

The BSA Workshop => Pre War => Topic started by: tonyairconchap on 06 May, 2018, 20:56

Title: Sloper primary chain lubrication adjustment
Post by: tonyairconchap on 06 May, 2018, 20:56
Hi all,  hopefully an easy question to answer for you experts
Got my Bsa sloper , M34 12 on the road , done aprox 240 miles and really enjoying it , especially the hand gear change.
But i am losing a lot of oil from the
primary chain case, i can see it leaking out the inspection cover. Inside the primary cases is a small drip feed pipe which i assume is where all the oil is coming from. On the engine casing above the chaincase is an adjuster, is this the one i need to adjust to slow down the drip feed.  If so , which way to slow it down, anticlock or clockwise?
or am i wrong? 
Look foward to any comments
tony
Title: Re: Sloper primary chain lubrication adjustment
Post by: Dean Southall on 07 May, 2018, 08:53
Hi Tony
assuming its the same as the 29 Sloper it is clockwise to reduce flow (like a domestic tap).The manual suggests 1/2 to 3/4 of a turn open for 'ordinary work'.
Title: Re: Sloper primary chain lubrication adjustment
Post by: tonyairconchap on 07 May, 2018, 19:32
Hi Dean, thanks for the  reply.  I have tried today to adjust but it seems as if it is already completly shut. So assume something must be worn.  So just to prove the oil is coming from the dripfeed i blanked the outlet thread with bolt and washer. Just done a 50 mile run and now not losing the oil  :)
so ,i now have a choice, do i leave this drip blanked off and use a modern spray oil on the primary chain on a regular basis. Or do i investigate further to see why the drip is over feeding.
Should the adjuster screw come out?
Tony
Title: Re: Sloper primary chain lubrication adjustment
Post by: Dean Southall on 07 May, 2018, 20:01
Sorry Tony but I've never worked on these oilers so I can't comment.
Perhaps you could contact Jules Dassen who is the Club's pre-war technical consultant. His deatisl are in the Star
Title: Re: Sloper primary chain lubrication adjustment
Post by: BEVANC on 08 May, 2018, 02:50
With my S29, I came to the conclusion that the primary oiler was simply the condensed crankcase oil fumes, thus it was acting as an engine breather. If I am correct, it would probably not be a good idea to block it off. From recollection, it is easy to unscrew the adjuster and examine it. I have some photos of mine somewhere I can dig out if it would be of use. Cheers, Bevan
Title: Re: Sloper primary chain lubrication adjustment
Post by: tonyairconchap on 08 May, 2018, 05:51
Hi Bevanc, some photos would be good please 👍
cheers, tony
Title: Re: Sloper primary chain lubrication adjustment
Post by: BEVANC on 08 May, 2018, 07:52
Hi Tony,
Here's a couple of pics of mine - may be similar to the one on your bike.

Also, a short video of the "breathing" noises with the oiler removed:
https://www.youtube.com/watch?v=JHbwMKxtg1I

Cheers,
Bevan
Title: Re: Sloper primary chain lubrication adjustment
Post by: tonyairconchap on 08 May, 2018, 18:11
What a top man you are for the pictures, made me laugh the vidio of the noises.
my set up is different , i dont have the  thumbscrew adjuster i just have what i would say is just a bolt with locknut and a flat bladed screwdriver slot for adjustment.
i will see if this comes out and see whats on the end.
Will update you
tony👍