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I have a super running refreshed LDS in my truck. During the refresh I had peeked into the fuel shutoff and down the holes in the HH and it looked clean. I did therefore not mess with it.
The weird thing that is happening is that I drive along, engine giving me full power, accelerating fine, levelling off....and then it feels as if I was pulling the shutoff. No fuel. No reaction to fuel pedal. Panic, count 21, 22, 23...look for place to coast to a stop.....boom, power's back as if nothing ever happened.
Even weirder is that this has happened only twice in about a month, each time after running flawlessly for about 100 km (70 miles). Both times it happened on the exact same, straight and level stretch of road. I start from a stop sign, accelerate and shift briskly up to highway speed and everything is fine - then this episode happens. It does not feel gradual, like a fuel flow restriction would. It feels like a shutoff.
I also tried to provoke it...accelerating with the pedal to the floor, running full power...nothing. I have not identified the exact circumstances that make it happen.
I need to do O-rings on the IP anyway (started seeping) and I am curious as to your opinions of what can cause this behaviour. I have a spare, used, LDS IP of unknown condition. Maybe I should swap the head in?
Oh, tank is clean, primary and secondary are spin-ons, new, and no crud when draining from the drain port. Truck pulls like a champ all the way to governed rpm (which a very sensible motor pool SGT had set to 2400 rpm on the LDS and I left it there). That is 60mph with my OD
The weird thing that is happening is that I drive along, engine giving me full power, accelerating fine, levelling off....and then it feels as if I was pulling the shutoff. No fuel. No reaction to fuel pedal. Panic, count 21, 22, 23...look for place to coast to a stop.....boom, power's back as if nothing ever happened.
Even weirder is that this has happened only twice in about a month, each time after running flawlessly for about 100 km (70 miles). Both times it happened on the exact same, straight and level stretch of road. I start from a stop sign, accelerate and shift briskly up to highway speed and everything is fine - then this episode happens. It does not feel gradual, like a fuel flow restriction would. It feels like a shutoff.
I also tried to provoke it...accelerating with the pedal to the floor, running full power...nothing. I have not identified the exact circumstances that make it happen.
I need to do O-rings on the IP anyway (started seeping) and I am curious as to your opinions of what can cause this behaviour. I have a spare, used, LDS IP of unknown condition. Maybe I should swap the head in?
Oh, tank is clean, primary and secondary are spin-ons, new, and no crud when draining from the drain port. Truck pulls like a champ all the way to governed rpm (which a very sensible motor pool SGT had set to 2400 rpm on the LDS and I left it there). That is 60mph with my OD
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