Recent content by 1990dtgl98

  1. 1

    Dead injector?

    I bought oem reman injectors. I'll send mine out to get cleaned and flow tested. I would up seeing rust in the regulator housing so I'm not sure how bad everything is. I blew it out as best i could but the lines are NLA and unless I'm taking one from a junkyard, spending 500 on a used set...
  2. 1

    Dead injector?

    Injectors all ohm'd between 12.3 and 12.5 Power and pulse to all wire. Pulled the rail and got 1 bank off so far. Injectors are all heavily clogged. Rail doesn't have any pieces in it. Do I need to worry about the new injectors clogging or do you think the rust was a combo from sitting for so...
  3. 1

    1999 7.4L mercruiser fuel pressure regulator crossover part?

    Interesting that doesn't cross reference to Delphi fp10021. That pr223 regulator I can't see as compatible with the l29 on any website?
  4. 1

    1999 7.4L mercruiser fuel pressure regulator crossover part?

    I think the current problem is a clogged injector. But if I had to replace the fuel pump, anti-siphon and pickup, and now fix the injector....for 50 dollars im going to do the fpr while the plenum is off since all my fuel components seem to have issues. If it doesn't interchange and it's a $400...
  5. 1

    1999 7.4L mercruiser fuel pressure regulator crossover part?

    So I have been have some fuel issues and replaced the pump and now need to check a dead injector. While the plenum is off I planned on replacing the pressure regulator. Oem mercruiser is 400, but it seems like a standard Delphi for.a work truck would work for 56 bucks Anyone know if the...
  6. 1

    Dead injector?

    Compression test: 1- 160 2- 160 3- 150 4- 155 5- 158 6- 161 7- 151 8- 160
  7. 1

    Dead injector?

    Plenum needs to come off. So will need gaskets. And a couple more hours.
  8. 1

    Dead injector?

    So I'll try to do a play by play as I go. Had some kid free time. Took out the plugs.....have spark at each cylinder at the plug. #5 and #6 cylinders Def don't have combustion.
  9. 1

    Dead injector?

    Usually i don't either. However it did sit for 3 years. I replaced the fuel line, fuel filter, anti siphon and pickup, fuel pump and regulator after siphoning the tank and only getting 14 psi at idle with the old pump. Now I get 34-36 at idle. Vacuum is a touch low to me at 14", but seeing...
  10. 1

    Dead injector?

    My bad. Thought I added that. 1999 Mercruiser 7.4L L29. Serial 0L399641 I've only had 1 injector fail in anything I've worked on as well.
  11. 1

    Dead injector?

    So here's the deal. I bought a project 1999 searay 230br. Got it running decent after a bit of back and forth. I still have an issue with it not revving over 3600 rpm under load. I replaced cap/rotor/coil/plugs and wires last season. Set base timing with a techmate. Had to replace the fuel...
  12. 1

    7.4 L29 cylinder drop test netted no change

    Factory 26p props per manual. My compression numbers are a winter project (long story short, I lent my gauge out and it came back....misused).
  13. 1

    7.4 L29 cylinder drop test netted no change

    Good evening all, 23' bowrider with a 7.4 (L29) engine and bravo 3 drive. Bought and been fixing this past winter, finally got it running we'll enough to use. Been having issues with only getting 3400rpm and 34mph out of it. My biggest gripe though.... pulling skiers up. It just doesn't have...
  14. 1

    7.4L (L29) not hitting WOT (got a rinda)

    The compression test I'm going to have to redo, the gauge was incorrect I found out working on a tractor. So that's going to have to be a winter test. Drop test not done yet. Fuel pressure 41psi. At idle
  15. 1

    7.4L (L29) not hitting WOT (got a rinda)

    Hey everyone. So I have a 1999 mercruser 7.4L (L29) that I've been chasing a issue with it only being able to hit 3600 at WOT. It has new plugs and cap/rotor. I also replaced the fuel pressure regulator and pump. Stock props on bravo 3. 4 people, 20gal gas, no bottom buildup, 23' open bowrider...
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