BSA 350 cc Model L engine circa 1930 strip and rebuild 3 Time to split the cases. 

Hard to believe that engine is pushing 100 years old, quality and design are amazing. I think you are especially enjoying this project :)

Excellent video thank you for this rod

Those oil within the crankcase engines were designed by a distinguished engineer called Harold Briggs. He was a Daimler man brought across to BSA in 1926 to do the job. By 1937 BSA went back to the remote oil tank designs.

Thanks Paul.

The run-out is visible, both sides.

They didn't scrimp on the ironwork did they, plenty o' meat on everything 😊

G'day Paul, l can see the amount of free play when you turned it over and your right it will need pulling apart too find why, looking forward to the next video, cheers mate, Neil 🤠.