HELP Mini digger running problems

[NoRush]

I have mini digger with a 3 cylinder perkins engine and when you either drive up a hill, on to the trailer or a sudden jolt it either cuts out or miss fires badly so you cannot operate it. Have checked filters and changed. Fuel tank is clean (checked with small inspection camera). Some times it works fine all day and some times its a total git and is doing my head in. Any ideas or advice would be a great help before I start hitting it with a big hammer

[tommytopsoil]

Does it feel fuel related? Or does it just stop dead when it cuts out?

[wrsni]

Check the wires running to the fuel cut off on the pump. Take off all connections, clean them and if necessary close up the female ends so they connect more snuggly.

 

Sounds like it might be the culprit.

[Breezeblock]

sounds like a fuel restriction try running it on a gallon can for a bit and see if it shows up

[monkeybusiness]

Check the wires running to the fuel cut off on the pump. Take off all connections, clean them and if necessary close up the female ends so they connect more snuggly.

 

Sounds like it might be the culprit.

 

This sounds right to me - it is quite possibly an electrical fault. Check also that any fuse carriers aren't corroded, and look at wiring to the key.

[RDB logs]

Mine had sucked up a load of grass in to the fuel pick up so didn't show until under load, yours sounds angle related so could be air in top of filter? Or level in tank?

 

Let us know the out come

[Sandworks]

Sounds like cut off issue, had same with jcb micro,works 98% of the time,traced it to wires where they go into the shut off solenoid, cracked inside insulation just where they go into the solenoid,give it a wiggle while running, if it dies thats your problem…..,hope this helps!

so,frustrating, felt like getting out the firelighters:cussing:

[doobin]

For the fuel, make sure you blow the line back into the tank with an airline, check all connections and hoses and bleed thoroughly.

 

Wiring to solenoid also sounds like a prime culprit, but up a hill/trailer suggests fuel.

[NoRush]

Thanks all. Will check all as suggested and see what happens. Will let you know the out come or just set fire to it:001_smile:

[NoRush]

So. Changed the fuel filter today and noticed the inline hand primer didn't seem to be working (no resistance) Blew fuel line with air back tank then blew air back into hand primer. Fitted all back together and there was resistance in the hand primer and fuel was being drawn through. Got it running. Been up and down me chipping pile and moved a load. Didn't miss a beat. One question. Could the hand primer be removed ?