Strange starting issue

[dtreid]

Troubleshooting for a friend Kubota rtv x1100c.

They were having issues with it randomly shutting off when they were using it. Said it would run fine for a couple hours and then randomly just shut off.
Said if they left it a couple hours or overnight it would usually restart.

Problem is now it won't start at all.

Found out they had accidently put gasoline in several weeks ago, but had drained the system and refilled with diesel.

It will fire after a fair bit of cranking but only run for a couple of seconds.

What I've done.
- drained the fuel tank and replaced the fuel filter and added fresh fuel.
- replaced the lift pump with a new one
- swapped injection pumps with another engine.

Nothing I have done makes a difference and I'm stumped. Can anyone offer assistance before I go crazy?

 

[geohorn]

According to Google: As little as 1% gasoline contamination will lower the diesel flash point by 18 degrees C. This means the diesel fuel will prematurely ignite in the diesel engine, which can lead to engine damage. Gasoline contamination can also damage the fuel pump and mess up diesel injectors.

 

[dtreid]

Solved. Removed all of the fuel lines from tank to lift pump and made sure they were clear. Replaced spring clamps with hose clamps. Previous owner had a longer fuel line from the lift pump to injector pump which made a loop. Replaced that with the short piece it is suppose to have.

Problem solved.

 

[Ohio_Pawpaw_Grower]

I love happy endings!

 

[geohorn]

GOOD ON YA!