jcb mark 111

mikes496 · Jul 4, 2010

i have a 78 jcb 3c mark 111 and it runs great most of the time but lately it gets air in the fuel line to the injectors and stops runing. some times it runs for 1 hour and stops then i purge all the air out and it runs for 5-10 min. any ideas were to start to fix this problem. Thanks

Handyman · Jul 4, 2010

you either have a cracked fuel line letting air in or the diaphram in your fuel pump is ruptured. check to see if fuel is getting into your crankcase, if it is then replace the fuel pump.

mikes496 · Jul 4, 2010

are you talking about the manaul fual pump not the injector pump right?

jcb mark 111

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