Long 460 will not start

zberninger · May 4, 2015

i posted a few weeks ago about how i tried to do some preventative maintenance on my long 460 and afterwards it would not start due to my own fault of removing the piston screw cap and getting the advance springs out of order. that problem has been solved and i thank those of you who helped me find the correct manual.

the problem is that the tractor still will not start. i have taken apart the entire fuel system and cleaned the lines, the banjo bolts, replaced washers that looked questionable, replaced the fuel filters, replaced the fuel pump, cleaned the injectors, and cleaned the end plate assembly on the back of the injection pump.

i am at a loss. the tractor ran fine until i thought i would stay ahead of the game and replace the fuel filters. we have tried to start it with the old napa filters and new ones. all we get is faint white smoke. anyone have any ideas? no suggestion is unwelcome at this point. zach.

rrlund · May 4, 2015

I foolishly ran my Fiat built Oliver out of fuel twice and had it starve itself for fuel twice because there was junk in the tank when I bought it. Of those times,I got it bled out enough to start it with the starter once,and that took a while. The other three times we ended up having to tow it to start it.

Donald Lehman · May 4, 2015

The Oliver 1355/1365 is an absolute bear to get bled and started after messing with anything in the fuel system. I would suggest bleeding the whole system again, turn it over (with a battery charger on the battery) until you get smoke. Then if it doesn't fire try a shot of starting fluid. If that doesn't get the thing going, tow it for several hundred yards, re-bleed and do it all over again. In my personal opinion, those old Fiats are about the most miserable tractor going when trying to restart after filter changes or running out of fuel. One possiblilty is that you may have the fuel pump between the tank and the injector pump may just have chosen this particular moment to give up the ghost, but I doubt it. Bleed and tow. Bleed and tow.

Traditional Farmer · May 4, 2015

The simple cure and I've done it several times with 3 and 4 cylinder Fiat engines is to pull them about a quarter mile and then they will just fire right up and run perfect.Beats burning up a starter.

zberninger · May 4, 2015

i have tried to pull it, but maybe i need to keep going. this is what it is doing currently.
[video play=false:654c4848f0]http://forums.yesterdaystractors.com/videos/mvvideo20380.mov[/video:654c4848f0]

Dieseltech · May 4, 2015

Was there an extra top filter seal put in the groove at the filter top, restricting inlet filter fuel flow? Common mistake with NAPA/Wix filters, have made several service calls in the past for that trouble. Not a problem with CAV 7111 296 or 796 filters..

Traditional Farmer · May 5, 2015

I had to pull one at least a 1/4 mile

Prawn Farmer · May 5, 2015

I have the UTB built Allis Chalmers version of your tractor. Several years ago I had a somewhat similar problem. Problem I found was with the fuel shutoff linkage.

Blackhole49 · May 5, 2015

Are yyou cracking lines loose at the injectors to bleed? If not do it. We had a Ford 4600 at work that was an absolute bear to start when they ran it out of fuel. Especially when no one would tell you it was run dry.

mudcreek183 · May 5, 2015

If you have the 3 cylinder perkins in it there are 2 bleed plugs on the injector pump that have to be done before fuel will get to the injector lines.Maybe you have done that but it was just a thought.

Mitch Poindexter · May 5, 2015

Thought a couple pics might help. Here's the engine from my Oliver 1365 when I was restoring it. We had to bleed through several stages after the engine rebuild in order to get fuel to the injectors. Since then, I've ran it out of fuel once, and had to rebleed everything again to get it going. Maybe if you could point out everywhere on the pics that you've got fuel to, it might help.

Last pic shows the bottom of the injector pump, in case it is a shut off issue. Also note where the shutoff linkage attaches to the injection pump. Pushing in on the shutoff linkage when starting the engine works the retard/advance on the pump and aids in starting. You might check there.

Mitch Poindexter · May 5, 2015

I'll second the 2 bleed screws comment on the injection pump. It's not a Perkins engine, but the fuel system is all Perkins like, and if you don't get fuel through those bleed plugs, then you're just trying to push a rope.

zberninger · May 5, 2015

Thanks to everyone for your replies. In response, i have bleed both the lower and the upper fuel filters, the lower and upper bleeders on the injector pump and the cracked the lines at the injector. All points have a steady stream of fuel and the open injector lines squirt about 8" when open about a turn and a half.

In other news, i took apart the piston cap screw on the injector pump to double check that i put it back correctly, hoping that i had made a mistake, and the threads stripped off of the housing when i went to reassemble it.

zberninger · May 5, 2015

Mitch Poindexter · May 6, 2015

To your arrow asking if that pin is the shutoff, the answer is no. That point on the pump is where the retard/advance happens in order to help start the tractor. The shutoff is further toward the front of the pump on the same linkage, and not visible in the pic.

Others will know better, but my opinion is that if you have fuel to all those spots and are squirting fuel out of the injectors at that rate when you crank it over, then your timing is off. If it has that kind of fuel, and is being cranked fast enough, then it should run. I would look elsewhere for timing issues if it were me. Sorry if that is not as helpful as you had hoped.

Long 460 will not start

zberninger

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rrlund

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Donald Lehman

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Traditional Farmer

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zberninger

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Dieseltech

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Traditional Farmer

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Prawn Farmer

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Blackhole49

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mudcreek183

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Mitch Poindexter

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Mitch Poindexter

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zberninger

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zberninger

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Mitch Poindexter

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