Kubota M62 Cranks But Won't Start

[RedNeckGeek]

Bought a 2016 Kubota M62 with 113 hours on it from an outfit in Texas, and it just arrived today. It started right up to offload from the truck, then started again just fine to run it up the driveway to the garage. There I noticed a hole in the plastic front grill, and when I popped the hood, found that the air cleaner canister and plastic hold down strap were broken. About a 4"x6" piece was missing out of the canister. Pulled the cap off, blew out the filter, took the canister off and covered the missing spot with duct tape. Put it all back together, but when I tried to start the tractor it would crank, catch, and then immediately quit. I can hold the starter on, and it will continue to spin, but no more firing of the engine takes place.

I thought maybe it got a gulp of air in the fuel system as it came down the steep ramp off the truck, so I bled it many times, for maybe a total of ten minutes, all per the operator's manual. No joy. Pulled the fuel line where it comes out of the pre-filter, and it's pumping plenty of fuel. Maybe it also swallowed a gob of gunk off the bottom of the fuel tank when it came down that ramp, but there's nothing but fuel in the moisture separator.

So that has me wondering if there's a safety interlock switch somewhere that might be tripped. There's one in the seat cushion, and another sticking up under the seat, but are there more? And would a safety interlock cause this behavior?


Haven't purchased the shop manual for it yet, but it's on the list.

Anything else I could try while I'm waiting?

 

[Peter 315]

Can you here the fuel pump run when you turn the key on...My L47 make a noise....

 

[RedNeckGeek]

Can you here the fuel pump run when you turn the key on...My L47 make a noise....

Yes, kind of a clicking noise. There's a high pitched hum as well.

When I pull the fuel line off the downstream end of the pre-filter (the little silver one before the big gray one), fuel comes out in spurts when I turn the key on.

Could be that big gray filter is clogged, and I've got a new one being delivered tomorrow, but with so few hours I'm doubtful that's the problem.

More than likely I'm just making some newby error as I'm not very familiar with this tractor yet.

 

[Peter 315]

I don't think its the fuel filter ...

 

[Peter 315]

fuel pump...

 

[RedNeckGeek]

I don't think its the fuel filter ...

I agree.

Since it's almost always the last thing you did, I just went out and took the end cap off the air filter canister.

Tractor started right up.

I'm thinking that the dust tape is blocking off too much of the filter, and I need to somehow stiffen up the area where the whole is before I tape it up.

But that's a job for another day...

Thanks for your thoughts!

 

[Peter 315]

Good luck........

 

[kthompson]

The piece missing was not the air inlet was it? If it was you are cutting on the air flow.

 

[Smokeydog]

The piece missing was not the air inlet was it? If it was you are cutting on the air flow.

Right. Check parts diagram of air filter (Messicks) air filter snorkel.

 

[s219]

The piece missing was not the air inlet was it? If it was you are cutting on the air flow.

My thought too.