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Greetings All-
Mitsu
FG25B
AF17B04336
Mitsubishi 4G63 engine
Old school Impco style fuel system. During another repair a week or so back I noticed the regulator was beginning to freeze up. I adjusted the power valve more lean and confirmed I had sufficient coolant. I checked fuel pressure on the JB2, and was was steady at 1.5, but would spike occasionally when I shut the engine off. I went on and replaced the regulator with a part in my van, but this one began to freeze after a short time as well. I returned a few days later and installed a lean Impco CA100 air valve. Test running and she still didn't thaw.
If I hold the coolant line on each side of the LP regulator, its cold. It seems I may not be getting coolant flow through the regulator, and I have bled the air there. Any suggestions??
  • Posted 28 Jan 2022 14:49
  • By ForklifttSteve
  • joined 13 Nov'19 - 28 messages
  • Mississippi, United States
Steve Pierce
Coast Equipment Services

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