Posted by redjohn on October 27, 2012 at 16:13:00 from (74.33.92.226):
Thanks to all who have given me advice when I needed it. But now again I need help.
As I've stated in other topics, I'm helping a friend, who rescued a 1066 with a 1466 engine, from the scrap yard. It was in a fire, so we cut the cab off, cleaned and painted the tractor. I re wired it, and we overhauled the motor.
I've been trying to figure out why the darn thing won't start, and I'm sure it has something to do with the injector pump.
When I had the motor apart, I marked all the gears that need to be timed up, so I know I did that right.
Being that the fire may have damaged the original injector pump, I bought a used one, that the person who I bought it from, said it was a good pump.
With the engine on TDC at O degrees, In installed the pump, making sure the mark on the pump gear, lined up with the pointer on the pump.
I've pumped the fuel up to the injectors, and thought it was ready to go.
It won't fire!
I know I have to have the throttle ahead a bit, to feed fuel to the pump.
When it cranks over, smoke does come out of the exhaust pipe, but it wont start up.
I talked to a friend of mine, and he said that maybe the pump was 180 degrees out. So from what I read in the engine manual under the injection pump, it explained the pump had to turn twice, to completely get fuel to the injectors. So it turns the same speed as the crankshaft.
Instead of removing the 3 bolts from the injector gear, and turning it 1 turn, per the book, I pulled it out, and rotated it 1 turn, and re installed it.
After making sure I had fuel to the injectors, I tightened down the lines, and tried starting. It is doing the same thing, as it did before. It just chuffs out smoke. It smells like unburned fuel.
A neighbor came out, and suggested, that instead of setting the motor at TDC, maybe it should be 8 degrees, or whatever it should be for the motor.
I don't know what the timing should be, but could this be the problem, or is there a problem with the injector pump? Is there a way to tell if the injector pump is working?
I hope someone can get me on the right track to get this thing running.
It's a great tractor, but for now till it runs, it's a space taker upper.
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