OIL FEED PIPES.

[jumbo12]

Hi,
New to a BSA so please forgive my questions.
Have a 1965 C15 S, which is 90% built when purchased so going through all to finishing off.
Correct oil tank, new pipes but not connected to engine, looked through all the manuals I have for info but not found anything definitive on connections, the engine pipe block has two pipes 5/16 and 3/8 diameters, but not sure which way round the pies connect, manual gives examples but states not c15t or c15s. So is there a standard way, flow from oil box filter pipe to which one on the engine and return from engine to oil box , what oil box pipes connect to what engine pipes ?
Hope that makes sense ?
Marc.

[spaceman]

According to Rupert Ratio, if you have got a rectangular sump plate then the outer pipe is the feed and the inner is the return. However, on the later end-fed (crankshaft) C15's, they have square sump plates and the pipes are the other way round. I would have to double check but assume your 1965 S is the same as the standard C15.

[spaceman]

I think the only difference between the 1965S and the standard C15 was the camshaft and roller big-end. The C15S should have a rectangular sump plate and, unlike the 1967 C15, the oil pipes do not cross over - that is, the outer one goes to the oil pipe output and the inner one goes to the back of the oil tank.

[jumbo12]

Many thanks for your help, seems the Rupert Ratio book is one to buy, would you recommend volume 1 as a good start.
Marc

[spaceman]

I restored my C15 and other unit singles using the Haynes Manual and bought RR Vols. 1-3 purely as reference books although Vols. 1 & 2 can be used as workshop manuals as well. If the engine has already been overhauled then Vol.2 (Everyting but the Engine) might be more appropriate?

[B44RVictor]

The Rupert Ratio Unit Single Manual's Volume 1 & 2 were on offer through the Star and discounted in price (and signed by the author if requested).  I use them for reference but they're also a good read, giving insight into the range of BSA singles and their development through the years of BSA manufacture.

[chaz]

there is more than just how to with the RR books, there is why and what to do to improve.
much more than just a manual.