Dumper won't tickover

[Russell]

The last couple of times I used my little dumper it won't tickover without stalling, even when warm. Its's slow to start and you have to crank it over a fair bit before it will fire and it will only start with full throttle. It's a TCP hi500 with a single cylinder diesel Kubota engine. I tried adjusting the throttle stop but this makes it rev too high or stall. Any ideas where to start?

 

[Monkeybusiness]

Is your fuel filter clean? And the fuel line pickup in the tank?

 

[Russell]

I will check

 

[Mintsauce]

Think I would get the injector done. Also see if there is any air leaking into the fuel system. This can sometimes be hard to detect but I've known several machines where the smallest crack in the sediment bowl or a poorly sealing copper washer has caused difficult starting amongst other problems.

 

[doobin]

Air leaking into fuel system will make any diesel hard to start. Fit an in-line electric pump.

 

[CPS]

Start with the basics... filter, fuel lines etc.

 

[Russell]

Took the fuel tank off and it's full of rust and s**t. I've cleaned it out and now I can see a pin hole so will have a go at welding it. The filter was a bit broke and minging so I hope it hasn't sucked up any dirt. I thought I would check the glow plug whilst there and it doesn't seam to glow either so there is a couple things to have a go at.

 

[V8Druid]

Start with the basics... filter, fuel lines etc.

Is your fuel filter clean? And the fuel line pickup in the tank?

Took the fuel tank off and it's full of rust and s**t. I've cleaned it out and now I can see a pin hole so will have a go at welding it. The filter was a bit broke and minging so I hope it hasn't sucked up any dirt. I thought I would check the glow plug whilst there and it doesn't seam to glow either so there is a couple things to have a go at.

My instant thoughts ... and would seem from your subsequent posts ... confirmed
DO NOT try '' welding '' the tank ..... Guy I used to know killed himself and three others welding a fuel tank -- admittedly a much bigger one, but they're all potential bombs

 

[V8Druid]

My instant thoughts ... and would seem from your subsequent posts ... confirmed
DO NOT try '' welding '' the tank ..... Guy I used to know killed himself and three others welding a fuel tank -- admittedly a much bigger one, but they're all potential bombs

steam it out .... clean the area around the pin hole to bare metal and wash some solder over it, with a big tin man's soldering iron ... DO NOT show it a flame

 

[Russell]

I had a go at welding it before reading this thread. I rinsed it with petrol then soap then blasted with pressure washer and welded the day after with both caps off. I can't get a pretty weld with my mig but we will see if it holds the diesel in. What would be the symptoms of a partially blocked injector?

 

[doobin]

steam it out .... clean the area around the pin hole to bare metal and wash some solder over it, with a big tin man's soldering iron ... DO NOT show it a flame

I just purge them with argon before and during welding, and I’m still here.

 

[Mintsauce]

I've cut old underground petrol tanks as part of my work in a scrap yard (welded seams and riveted ones). And cut up a big diesel storage tank recently. I understand the sentiment anyway.

 

[V8Druid]

I just purge them with argon before and during welding, and I’m still here.

ideally use nitrogen Doob ... and steam first ... steel will 'absorb' combustibles to a degree and the heat releases fume which're the potential threat ...... can cram it full of water - or diesel so's there's no air for combustion .... I'd rather solder the bar stewards TBH ... the guy I mentioned earlier and his mates'd contradict you ..... took the entire roof off the workshop

 

[V8Druid]

I've cut old underground petrol tanks as part of my work in a scrap yard (welded seams and riveted ones). And cut up a big diesel storage tank recently. I understand the sentiment anyway.

aye ... its all down to how you take it on Con ... anything's do-able with care and thought

 

[Russell]

I've put the new fuel and air filter filter on but it still stalls at tickover. Is there any way to adjust the tickover? I see there is a adjustment bit on the fuel pump around the injector line but i dunno what this does.

 

[V8Druid]

I've put the new fuel and air filter filter on but it still stalls at tickover. Is there any way to adjust the tickover? I see there is a adjustment bit on the fuel pump around the injector line but i dunno what this does.

did you clean everything else out too ... from your description everything is going to be contaminated with crap from the tank ??

 

[Russell]

No I've not taken the pump out or the injector. I'll do this next.

 

[V8Druid]

No I've not taken the pump out or the injector. I'll do this next.

don't forget all the lines and any other gauze filters in them ... check any banjo joints for tiny gauze filters too