Heaveyweight Single question

neil cairns · Post by **neil cairns** » Tue Jul 24, 2007 9:57 am

How do I remove the little non-return-valve that feeds the cylinder lubrication. It is mounted in the crankcase, between the cam followers ( with the cylinder removed.) I can get the 'centre' to rotate and this holds a light spring in plce, but I strongly suspect the 'valve' is stuck shut, as no oil is coming up through it ( spun over by hand for five minutes) though plenty dripped out of the rocker feed pipe.

bag-o-nails · Post by **bag-o-nails** » Tue Jul 24, 2007 10:18 am

not sure if spinng by hand is enough when the motor is running the pressure gets up to 3001b!!

itma · Post by **itma** » Tue Jul 24, 2007 10:29 am

insert a 3 ba cheese head screw and lever it out,
it will do no harm if it does not work, discontinued on later engines

neil cairns · Post by **neil cairns** » Tue Jul 24, 2007 3:24 pm

Super, thank you for all that.

Neil.

neil cairns · Post by **neil cairns** » Tue Jul 24, 2007 6:26 pm

Removed the valve, then the ball bearing using blue-tack. Spinning over by hand now produces an oil flow. Cheers.

Neil.