Lucas Diesel Pump Stuck ? Due To Standing - How To Free Up ?
Discussion
Hi guys I have a Manitou forklift that has stood for 6 months.
I've just started it up but it hasn't got any power - try to move it or use the ram and it stalls.
The diesel's good and I've checked the lift pump is working so I think the Lucas diesel pump is stuck. It will rev(ish) but there's no power.
Is there anything I can do to free it up (like adding some two stroke or petrol in the diesel filter) or am I going to have to strip it down.
I've just started it up but it hasn't got any power - try to move it or use the ram and it stalls.
The diesel's good and I've checked the lift pump is working so I think the Lucas diesel pump is stuck. It will rev(ish) but there's no power.
Is there anything I can do to free it up (like adding some two stroke or petrol in the diesel filter) or am I going to have to strip it down.
redgriff500 said:
Hi guys I have a Manitou forklift that has stood for 6 months.
I've just started it up but it hasn't got any power - try to move it or use the ram and it stalls.
The diesel's good and I've checked the lift pump is working so I think the Lucas diesel pump is stuck. It will rev(ish) but there's no power.
Is there anything I can do to free it up (like adding some two stroke or petrol in the diesel filter) or am I going to have to strip it down.
make sure the stop cable is going back all the way and try changing the filters first ..I've just started it up but it hasn't got any power - try to move it or use the ram and it stalls.
The diesel's good and I've checked the lift pump is working so I think the Lucas diesel pump is stuck. It will rev(ish) but there's no power.
Is there anything I can do to free it up (like adding some two stroke or petrol in the diesel filter) or am I going to have to strip it down.
It sounds like the centrifugal guvernor might have siezed? (i.e. the engine speed falls, but the pump does not add extra fuel to increase torque, and hence engine stalls)
I would suggest 2 things
1) get the engine properly hot
2) rev it a bit with the hope that the vibrations might work loose the weights etc
otherwise, looks like you need to get the spanners out
(just try not to do a scrappy racers "proper job" on it, and drop the vital limiter plate out of the pump whilst it's running.....
http://www.youtube.com/watch?v=5zx3qKX_Pno
)
I would suggest 2 things
1) get the engine properly hot
2) rev it a bit with the hope that the vibrations might work loose the weights etc
otherwise, looks like you need to get the spanners out
(just try not to do a scrappy racers "proper job" on it, and drop the vital limiter plate out of the pump whilst it's running.....
http://www.youtube.com/watch?v=5zx3qKX_Pno
)I've left it running for a hour and it improved very slightly.
I've googled and found that someone added ATF into the fuel filter bowl - modern stuff is synthetic though but I guess in small quantities it should be ok.
Maybe I should try warming the pump with a propane torch - it would thin the diesel too.
I'm getting a tech manual tomorrow which should have the pump info it there - never played with one before but I thought it was a specialist job.
I've googled and found that someone added ATF into the fuel filter bowl - modern stuff is synthetic though but I guess in small quantities it should be ok.
Maybe I should try warming the pump with a propane torch - it would thin the diesel too.
I'm getting a tech manual tomorrow which should have the pump info it there - never played with one before but I thought it was a specialist job.
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