"Old wrote:

If you hit the decelerator pedal and hold it there you wind up in low idle mode. The loading piston would be in the up position and governor main spring would have minimum compression (rack near off). I don't know any way of checking the piston without taking it apart but I'd like to get tc's input before tearing into it.

Totally agree I am not trying to tear into anything... We will wait for TC... Again much thanks and appreciation

"gvanhouten" wrote:

Totally agree I am not trying to tear into anything... We will wait for TC... Again much thanks and appreciation

Again that last post is assuming the decelerator is functioning and the piston is not stuck.
Keep checking back on my edits as more thoughts flow.

This governor and fuel thing is getting crazy. Is it putting out fuel? Pick a line that can be attached to any pump and affix an injector nozzle to it. Have some one crank the engine while you hold a paper plate in front of the nozzle with the fuel control in NO FUEL position. Should be no fuel sprayed onto the plate. NOW, Do the same thing with fuel control in full fuel position. Should see a good spray pattern on the paper plate. Now if you get a good spray pattern, move the line to each pump and test them each. Good SPRAY PATTERN? If YES, check the adjustment on each pump for timing. When done with that, MOVE ON. Fuel and timing is not your problem!

I would not worry about the governor control at this point, as the throttle will not work correctly until engine oil is pumped in via the thin pipe, if you look at the rack control you will see a line that index's with the fuel pumps , as long as that line moves past the zero point to fuel on this is going to start the beast, you can pull it hard to fuel on by hand through the side plate to improve things if you think it's still lazy. tctractors p.s. the oil pressure should take care of moving the piston as I would not think it would be sticking or stopping start up, the engine will take 30 to 50 seconds of running before the throttle comes up against the decelerator under your foot, with tipex you can mark and measure your rack travel, it's just a rough way of doing it but it is simple enough.

I would be interested to know if the Decelerator control valve is actually working.

Hi gvanhouten,
could you please clarify if you are holding the De-accelerator pedal down whilst trying to start this engine.

As OM said if you are, then when oil pressure comes up--which appears to be when we see grey, then black smoke and the engine lightly firing whilst being spun over--it will be only be receiving enough fuel for running at my early (66A1061-up) Rack setting Chart's Setting of :- 700 +/- 50 rpm with the De-accelerator pedal held down.
Low idle Rpm is :- 475 +/-10 Rpm

Lifter setting is :- 2.0899 +- 0.002" on engine with engine set on TDC --OM may have later Specs for your S/No

Also, as said by myself and others before and after me above, the simplest way to check for fuel injection delivery is to attach a capsule (injector), adaptor, and a capsule to an injection line and crank the engine and see if the injection pump can open the capsule at around 600 Psi.

Yes, there are no seals at the capsule to adaptor joint which will leak a bit but still tells us what we need to know--the injection pump can make 600 Psi with rack on or not if the rack is closed.

I am sure if this was done when we asked for it we would have a better understanding of what might be going on or not.
This test is often done when injection delivery fuel is in doubt as an almost first test in the Troubleshooting process.

Hope this helps.
Cheers,
Eddie B.

"edb" wrote:

Hi gvanhouten,
could you please clarify if you are holding the De-accelerator pedal down whilst trying to start this engine.

As OM said if you are, then when oil pressure comes up--which appears to be when we see grey, then black smoke and the engine lightly firing whilst being spun over--it will be only be receiving enough fuel for running at my early (66A1061-up) Rack setting Chart's Setting of :- 700 +/- 50 rpm with the De-accelerator pedal held down.
Low idle Rpm is :- 475 +/-10 Rpm

Lifter setting is :- 2.0899 +- 0.002" on engine with engine set on TDC --OM may have later Specs for your S/No

Also, as said by myself and others before and after me above, the simplest way to check for fuel injection delivery is to attach a capsule (injector), adaptor, and a capsule to an injection line and crank the engine and see if the injection pump can open the capsule at around 600 Psi.

Yes, there are no seals at the capsule to adaptor joint which will leak a bit but still tells us what we need to know--the injection pump can make 600 Psi with rack on or not if the rack is closed.

I am sure if this was done when we asked for it we would have a better understanding of what might be going on or not.
This test is often done when injection delivery fuel is in doubt as an almost first test in the Troubleshooting process.

Hope this helps.
Cheers,
Eddie B.

Hi Eddie and thank you.

In the video that was posted both times to Youtube I did not hold the decelerator down. I will take a look at the Injection pump while it is off the machine for the cam and general condition and put it back on and do the testing with the capsule. I think this is vital so we can sort that out first. I should have left it on but after talking with multiple people it seems like they do not feel but have not ruled out the injection pump.... I am returning to Hawaii on Wednesday and will be posting plenty of follow ups for everyone so we can figure out and fire the old girl back to life... Thanks you and stay tuned....

"edb" wrote:

Hi gvanhouten,
could you please clarify if you are holding the De-accelerator pedal down whilst trying to start this engine.

As OM said if you are, then when oil pressure comes up--which appears to be when we see grey, then black smoke and the engine lightly firing whilst being spun over--it will be only be receiving enough fuel for running at my early (66A1061-up) Rack setting Chart's Setting of :- 700 +/- 50 rpm with the De-accelerator pedal held down.
Low idle Rpm is :- 475 +/-10 Rpm

Lifter setting is :- 2.0899 +- 0.002" on engine with engine set on TDC --OM may have later Specs for your S/No

Also, as said by myself and others before and after me above, the simplest way to check for fuel injection delivery is to attach a capsule (injector), adaptor, and a capsule to an injection line and crank the engine and see if the injection pump can open the capsule at around 600 Psi.

Yes, there are no seals at the capsule to adaptor joint which will leak a bit but still tells us what we need to know--the injection pump can make 600 Psi with rack on or not if the rack is closed.

I am sure if this was done when we asked for it we would have a better understanding of what might be going on or not.
This test is often done when injection delivery fuel is in doubt as an almost first test in the Troubleshooting process.

Hope this helps.
Cheers,
Eddie B.

You mentioned a capsule injection adapter. Any part number or reference to where I can buy this?

You don't need an adapter. Just screw the capsule to the body outside its mounting.

If upon testing injectors for a good spray and getting fuel then I have a nagging feeling from earlier comments that the previous owner said it was always a difficult starter after an engine overhaul, does this tractor have an injection timing issue, not knowing the extent of the overhaul etc, I am starting to think injection timing might be very retarded, way after TDC. Failing that a valve camshaft timing issue, though I tend to think not.

If the go gas is making it knock a lot I believe there is sufficient compression to heat the air to ignite it, thus my feeling is somehow the injection timing is all up the spout. Not being familiar with D9's I don't know where or how it could be made to be so far out.

Just a mad rambling thought. Wombat