SimonA
Well-Known Member
I posted this in the PBO forum but thought someone on here might be able to help. Sorry for cross posting.
My BMC 1500 Diesel engine has a strange problem which crops up occasionally when it won't stop after the stop cable is pulled, instead the revs pick up slightly. It doesn't happen all the while which makes the problem even stranger.
What happens is I pull the manual stop lever and instead of stopping the engine goes from 600 rpm tick over up to about 1200 rpm, it doesn't increase further in speed and if I push the lever back to the run position the revs drop back down to normal tick over. I've been told this is impossible, but it is exactly what happens.
The engine is fitted with a CAV injector pump, the type with a turret housing the throttle and stop levers, the stop lever is travelling the full distance so it isn't a cable problem. There was originally a cap and a wire on one of the adjustment screws but this fell off, not sure if that has anything to do with it.
The only way I can stop the engine when it does this is to pull the stop lever and then drop her into gear, which cuts the engine after about 10 seconds.
Engine was professionally rebuilt 6 years ago and has done about 150 hours since then.
Any suggestions much appreciated before I have to pay someone to look at it.
My BMC 1500 Diesel engine has a strange problem which crops up occasionally when it won't stop after the stop cable is pulled, instead the revs pick up slightly. It doesn't happen all the while which makes the problem even stranger.
What happens is I pull the manual stop lever and instead of stopping the engine goes from 600 rpm tick over up to about 1200 rpm, it doesn't increase further in speed and if I push the lever back to the run position the revs drop back down to normal tick over. I've been told this is impossible, but it is exactly what happens.
The engine is fitted with a CAV injector pump, the type with a turret housing the throttle and stop levers, the stop lever is travelling the full distance so it isn't a cable problem. There was originally a cap and a wire on one of the adjustment screws but this fell off, not sure if that has anything to do with it.
The only way I can stop the engine when it does this is to pull the stop lever and then drop her into gear, which cuts the engine after about 10 seconds.
Engine was professionally rebuilt 6 years ago and has done about 150 hours since then.
Any suggestions much appreciated before I have to pay someone to look at it.