Has anyone had experience of trying to fit those circlips? I bought what I thought was the correct tool, but even with that it seems an almost immposible feat!! Are the ciclips even necessary? I assume they are there only for removal and replacement of the barrel.. Your thoughts would be most appreciated..
I have fitted those pain in the backside clips twice now, The best method I have found is to get a tube that u can drill/machine to just fit over the 'bullet shape head' of the follower, slide the clip down and use a screwdriver or similar to pop them into place. A bit fiddly but.....works.
I do run my engines without the circlips, definitely no need for them. For top end assembly I put some white grease or vaseline, which gets solved in the engine oil more easily (no, Ger.... do not even think about making jokes about this! ) on the tappets. That keeps them from falling out. The only good thing about the circlips is when disassembling the top end. The tappets stay in place then, without you have to be careful to get each tappet back on its own cam. FWIW
Best regards Phil Duesseldorf/Germany '62 A 65 Star (disassembled) '69 A 65 Lightning '71 A 65 Firebird '75 T 160 '84 Yamaha SR 500
Many thanks again Guys for your input. On a separate note, I couldn't find my BSA workshop manual, so refered to the Haynes for torque settings on the oil pump drive worm gear. Haynes state 60 ft/lbs whereas BSA recommend 35. Quite a potential thread stripping difference!!!