The BSA Workshop > Lightweights

BSA Beagle Rocker Feed

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Arthur:
My knowledge of pre-war motorcycle engines is practically nil but I'm very surprised that they relied on 'oil mist' lubrication for the rockers. However, the Beagle engine was effectively derived from that of the Tiger Cub/Terrier and they used a proper oil supply to the rockers. Had 'oil mist' lubrication been effective for this type of small engine, the Tiger Cub/Terrier would have used it I would have thought!

ANDY HIGHAM:
For oil mist lubrication to work the oil mist has to reach the part requiring lubrication. If the beagle engine breather was on the rocker covers, then oil would be carried to the rockers. As it is the oil mist is required to be forced into a dead end, it just won't happen

DEAN SOUTHALL:
I find it stimulating to have topics like this to debate. Garage work is as integral to the pleasure we get form our bikes as is the riding and its fun to explore ways of modifying and improving them. The great joy of our machnes is that BSA left us with loads scope for this!

Sometimes, if asked why we do it we set aboit some of our projects we c an only reply that we just fancy the challenge : look at the work they guy did to get an A65 head to fit an A10 - phenomenal.

But I  feel that sometimes people can hear of possible upgrades and assume these indacte a flaw with the original design more serious than it really is.

Last summer I was at a country show where a chap had trailered his just beautifully restored Beagle. Having rstored one myself some  time ago I went over to have a chat with him to learn that he hadn't felt confident to start the engine yet. So, as it was all set ready to be started, I offered to give him a hand. No amount of persuasion would get him to start it because , as he explained, he was worried the rockers would get damaged due to oil supply problems he had heard about!

I bet you'd have a problem using it daily but I'd put money them surviving the type of use we put them to.

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