Hi all,
New here, but long time BMC owner.
Recently rebuilt cav injection pump is leaking at the idle damper screw. The leak seems not to be the bleed screw, which stays dry. As far as I can tell, the leak is from the idle damper screw threads.
My question is whether the lowest nut into which the damper adjustment screw threads, I believe it is referred to as a lock nut, the one that has a sealing washer under it according to the diagrams, should seal these threads if I tighten it more than it currently is. Is the normal adjustment sequence to loosen this lock nut prior to changing the damper screw setting? Perhaps the rebuilder did not tighten it because he anticipated that it would need adjustment once replaced on the engine.
Thanks for the help,
Cheers,
Allan