Sad day for my TN75D Injector Pump Failure

AndyMA · Nov 16, 2005

Last week, I ran my TN for several hours and it ran perfectly. Next morning I tried to start it and it cranked over perfectly but no go. Thniking I may have run out of fuel I refueled and bled the fuel system (pain in you know what to reach with loader and ac lines in way). Still no go. Dealer showed up with fuel selonoid and replaced still no go. Conclusion Fuel Injector pump NG. Tractor picked up and New Holland pumps backordered. My pump is now out for rebuild. Sure miss my machine. Lots of work to do before winter sets in.

Andy

jinman · Nov 17, 2005

Ouch! That would really disappoint me too. It must have been a catastrophic failure of the pump shaft or something to make the pump quit working altogether. Maybe not, might be a blown seal, because you said it was being rebuilt locally. Isn't the engine made by Ipeco? I assume that the backordered pump would have to come from Italy. /forums/images/graemlins/frown.gif

I hope you get your tractor back soon, Andy. Is it still in warranty?

kensfarm · Nov 17, 2005

"Thniking I may have run out of fuel I refueled and bled the fuel system "

I've run out of fuel several times.. put 5 gallons in.. and start the bleeding process.. sometimes it's taken another 5 gallons added to get the fuel to come out the bleeder line.

I hate being w/out my tractor too! Any way they can spot you a loaner if your fuel pump will take some time to get rebuilt?

AndyMA · Nov 17, 2005

I hope I get it back soon. They are telling me by the end of next week. Fortunately it is still under extended warranty. I can't remember if posted this here before but I lost a bunch of weeks of tractor time this summer when I took a wrong step off a 6 yard loader, fell off a 4 foot cement wall and broke 5 ribs. Big Ouch. I've been trying to catch up on work befor winter sets in. yes I know Texas is warmer /forums/images/graemlins/confused.gif I was in Austin in August a couple of years ago and almost roasted my you know what off. The failure does not appear to be catastrophic. On my excavator I had a pump problem that turned out to be nothing more (after several hours of digging) than a tiny tiny twig lodged in the injector pump. This problem appears to be similiar in that nothing appears to be wrong externally and no strange sounds occur. I have know the service manager at my dealership for 20 plus years and he tells me that I will be better off with a good rebuild of my own pump that a new pump. I suspect that a hand calibrated rebuild will be just fine. I have just got my 2120 back from a long stay at the dealer where it went after a pto override clutch in the tranny shattered (heavy use since 1987). It took a few months to get a new shaft as the first ones received from New Holland weren't ground for the bearings. I suspect my dealer would loan me a machine but for now I can live with the 2120 plus the excavator. I will also state for the record that bleeding a TN with a cab, loader and ac is not an easy job. Just about everything is in the way. Without the loader and ac it would be a snap as the sales brochures show. /forums/images/graemlins/shocked.gif Really want to be back in that warm cab before the snow flies. Way to many year plowing snow in an open tractor. Nothing like those pine trees dropping their snow load down your back when the ROPS hits them.

Thanks for your support

Andy

RickB · Nov 19, 2005

Don't know if this was checked, but I will add this thougth. Any Iveco powered NH equipment is prone to collecting debris in the banjo fitting at the inlet connection to the fuel transfer pump. Especially those, like TN's that have plastic fuel tanks. Drill chips migrate through the tubing only to be trapped at the banjo fitting. This can take a few hundred to in one case several thousand hours to show up.

RickB · Nov 19, 2005

The pump is a Bosch. A good pump shop will fix him right up, even if a head and rotor is needed. Probably part of the reason they are on BO from NH is absent the warranty issue, few folks with any experience in managing fuel system repairs would go to a tractor manufacturer for a new replacement pump when bonafide dealers/repair facilities for the component's manufacturer are usually within one day's UPS shipping radius.