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03 150txrb hpdi need some help

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  • 03 150txrb hpdi need some help

    Spring tuneup time, boat sat for 5 months
    Just changed bowl filter, medium pressure inline filter, cleaned VST filter but forgot to check regulator screen. I also just changed water seperator housing and filter and some of the fuel lines. new tank vent also. Drained gas from tank and put 10 fresh gallons in.
    Then on first start
    When starting engine fires right up but idles low and immediatly stalls.
    If I try to add warm up lever it stalls. If I keep at it and bump throttle just out of idle it will stay running. Once I got it running I did check tps AND DID A minor adjustment to .59V, move throttle up and back a couple times it ranges from .61 to .59 in nuetral. Throttle plates are all closed at idle. Did notice some air at top of fuel bowl also primer bulb gets a little soft after start. Any ideas would be appreciated

  • #2
    My guess would be that it is fuel related..maybe clogged injector..I would not run that motor till it is fixed.

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    • #3
      update

      took the vst tank back down found the electric pump top oring damaged, replaced hooked up external tank, started fine with slight amount of warmup lever on initial start. Idles fine on the muffs tach jumps from 6 to 7 on gage Want to check fuel pressure, rented one from autozone but fitting was to big to srew on top of vst tank, any ideas how to get a tester or make one?

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      • #4
        I got a fuel gauge Kit off of ebay for around $30..it has about every adapter that you need.

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