PLease help- 1750 diesel won't fire even with ether

royalslover · Jan 24, 2015

OK here's the dealio. I've had this tractor for about 10 years. I don't start or use it that often but I've always been able to start it with a short blast of ether through the air cleaner. My cousin farmed with this tractor for 20 years before I bought it and he had to do the same thing. A couple of months ago my son took it out for a spin. He got it on the road and opened up the throttle and it just died. I was watching and it blew a fair amount of white smoke as it died. Today I shot a couple blasts of ether and it will not fire at all. The oil doesn't seem to have any water in it so I don't think it's a head gasket. Does anyone have an opinion on this? The injector pump was rebuilt right before I bought it.

oliver90owner · Jan 25, 2015

My first thought was that of several, or all, push rods having
been bent.

mkuhns · Jan 25, 2015

It is not getting fuel thru the in injection pump. Is there fuel supply to it. Did you crank it over with the lines at the injectors loose? The metering valve in the injection pump may be sticking from the wonderful fuel we have nowadays.

J.Wondergem · Jan 25, 2015

My first guess would be the valve train. Does it spin over faster than normal?

OliverNate · Jan 25, 2015

pull the valve cover off and spin er over, see if all the valves move, also watch for smooth movement possible when he opened er up, that something broke on the cam gear and now its out of time

Adam Suess · Jan 25, 2015

Sounds like the cam broke. It's not uncommon. A bad
harmonic dampener can contribute to the cam braking
so I'm told.

OlMax · Jan 25, 2015

Check the spring on the side of the injector pump, mine broke while the engine was idling, I thought it was out of fuel. This was on a Super 77D,I bled the lines, checked fuel flow to the injector pump, pulled it around the yard. The spring hung in place and it controlled fuel to the pump. Hope it is that simple.

royalslover · Jan 25, 2015

If it was a bad injector pump wouldn't it still start with ether? Where do I find the valve train? Is the cam a big expensive deal to replace? This will be my first time opening up a diesel.

oliver90owner · Jan 26, 2015

Diesels are no different than gas engines, in this respect. Have
you ever opened up a gas engine, other than a cylinder-ported
two stroke maybe? Valve train for these engines includes
followers, push rods, rockers, springs, collets and retainers
between cam and poppet valves; all the parts needed to
correctly operate the valves in the proper sequence.

No point at all discussing cost of a particular item until the fault
is diagnosed.

Brad Metcalf · Jan 26, 2015

it has to have some fuel to make ether work

bison · Jan 26, 2015

Crack a line nut loose at a injector and while starting look for fuel, if that pans out good then do a compression test,if not then you have a fuel problem.
While the injectors are out have them tested.

PLease help- 1750 diesel won't fire even with ether

royalslover

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oliver90owner

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mkuhns

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J.Wondergem

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OliverNate

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Adam Suess

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OlMax

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royalslover

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oliver90owner

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Brad Metcalf

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bison

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