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Finally finding time to tinker with the XM818.
With new batteries in her all the electrical seems A-OK. Even confirmed she has power to the Fuel Solenoid. So now chasing the fuel system.
The EMERGENCY Fuel Cut-Off Cable and Valve are both functioning properly and I've confirmed the Fuel Cut-Off Valve is in the "Run" position.
Primer Pump would hardly budge the Fuel Pressure Gauge's Needle, so I replace the Primer Pump's O-Rings. Now the Primer Pump will make, BUT NOT HOLD 30 P.S.I. with vigorous pumping..... even without cranking the engine AND without the glow plug energized.
Looks like it's on to the Selector Valve and Rubber Hose inspection/replacement as my next indicated step(s).
THANK YOU for the wealth of information archived in this thread. More on this as we progress towards "The Shepherd's" RESURRECTION !!!
Thanks for that input, tractors0130.Dash primer will not hold pressure since it will bleed off for starting while glow plug is energized.
Just an FYI. I've got a deuce with 2 tanks and a 5 ton selector valve. It was very hard to turn so I took it apart and cleaned it up (gently) and now it leaks around the stem. Spoke to Anderson direct this AM. Now they won't have anything to do with the internal parts for liability reasons. I see where I need a #9 & 23 o ring but am still looking for the lube they specify in the velve info. Any ideas?Haven't seen any mentions in this or other threads about the Anderson Brass Co. They made valves for the M809-series. They do sell the complete valves, and many of other designs. They also can provide you with the small internal parts. A couple years ago I needed a couple new stop-washers, the ones you see under the handle that limit handle travel. They sent them pronto, never bothered to invoice me nor ask for postage. I have also purchased different valves from them for use on custom projects. And as far as M809-series fuel hoses to/from the selector valves and the hose from the filter to the PT (injection) pump, I stopped buying NOS hoses due to their age. Most auto supplies or truck shops have Gates or equivalent diesel or biofuel-rated hose by the foot. The brass fittings on the M809-series are barbed and are re-usable. The originals might look crimped or special, but they are not. Just cut the old rubber hose off the fittings, and slide the new hose in place and you're good to go. Just make sure the hose bore has been flushed clean after initial hose assembly before you hook it up to your truck
sorry to hear they no longer will sell internals .. As for lube, I have used a light coat of vaseline and also regular grease . Yes it will eventually dissolve into the fuel as it's being moved one way or the other, but how soon it dissipates depends on how often you use the valve, as you probably can figure .. I have used o-rings matched up from the local auto supply assortment , not perfect but really close and they worked .. you might get lucky by coating the stem and your old o-ring with a thin layer of vaseline for now .. if you haven't already been, its also a very good thing to get some sort of lubricity into your fuel these daysJust an FYI. I've got a deuce with 2 tanks and a 5 ton selector valve. It was very hard to turn so I took it apart and cleaned it up (gently) and now it leaks around the stem. Spoke to Anderson direct this AM. Now they won't have anything to do with the internal parts for liability reasons. I see where I need a #9 & 23 o ring but am still looking for the lube they specify in the velve info. Any ideas?
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