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  1. mrzooom

    Tb IV intermittent spark ?$#???

    Thanks gentlemen!
  2. mrzooom

    Tb IV intermittent spark ?$#???

    Ok, I'll keep short...having gone threw and cleaned and filed every connection, I get spark and then I don't get spark??? Checked the compression 150 on all 8 +/- 1 pt., I've got fuel...fresh fuel, fresh battery charge...I get voltage at + coil in run poss. Then it goes away. I haven't checked...
  3. mrzooom

    Ol' Girl will not start now a'pre-sinking !?!😩('92 merc 5.7 alpha 1 gen 1 4bbl Quadrajet)!?! HELP!!!

    Got cha. Thanks again...
  4. mrzooom

    Ol' Girl will not start now a'pre-sinking !?!😩('92 merc 5.7 alpha 1 gen 1 4bbl Quadrajet)!?! HELP!!!

    Fired up...but after 4 to 5 minutes idling, she would just stumble and fall. I check the + coil...no voltage!?! Then, pulling my hair out, I jumpered a wire from battery + to coil + and she fired up strong again? So can I just run another ingnition wire along the purple ignition wire from the...
  5. mrzooom

    Ol' Girl will not start now a'pre-sinking !?!😩('92 merc 5.7 alpha 1 gen 1 4bbl Quadrajet)!?! HELP!!!

    Yes, I'm now fuel and spark, but my suspicions now suggest I may still have water in the tanks. Again, I siphoned out what I thought was the last of it so I'll check it tomorrow...
  6. mrzooom

    Ol' Girl will not start now a'pre-sinking !?!😩('92 merc 5.7 alpha 1 gen 1 4bbl Quadrajet)!?! HELP!!!

    Ok😉Team! Well as Bondo pointed out was I really getting girl to the carb? Dur...Not sure why I assumed I was, anyway...no fuel. I got it all the way to the water separator fuel wasn't pumpin'...I been working on her all day. So I took carb & pump off, disassembled and soaked everything in...
  7. mrzooom

    Ol' Girl will not start now a'pre-sinking !?!😩('92 merc 5.7 alpha 1 gen 1 4bbl Quadrajet)!?! HELP!!!

    Bondo, you never to fill my sail. Frankly, I assumed there was but I haven't any direct knowledge that there is... I'll check this morning and report back!
  8. mrzooom

    Ol' Girl will not start now a'pre-sinking !?!😩('92 merc 5.7 alpha 1 gen 1 4bbl Quadrajet)!?! HELP!!!

    Well if you were following my previous post "Sank the Ol' Girl", I did everything can think of to prepare and recover her back to health and beauty that she was prior to the BATH she took all the way down as it was... Anyway now I'm out of ideas. I just drained the oil & filter for the 3rd time...
  9. mrzooom

    Sank the 'ol girl!?!

    Just woke up, startled, confused, was still half asleep, didn't think of it, I reacted instead of responded, shall I go on...sometimes we do and make very bad decisions and this mistakes. Oh well, this was one of those times. In the meantime, I've got very bright spark. I think I'll change oil...
  10. mrzooom

    Sank the 'ol girl!?!

    I had a small (so I thought) leak in the bilge. Left her in a slip all night. Woke up and went the boat. Bilge full of water but still hull was still above water but a couple of inches. I was confused so instead of finding a pump I figured if I could start her I would accelerate until the water...
  11. mrzooom

    Sank the 'ol girl!?!

    Well, after spraying and cleaning all contacts, plug wires, inside cap & rotor, sensor, etc., with electronic spray cleaner, I went through the trouble shooting quide...no voltage at ignition amplifier. Then I looked at the wire harness/loom and it was sort of funky so I found some of the wires...
  12. mrzooom

    Sank the 'ol girl!?!

    Yeah, now I have fuel but no spark...so Delco est conversion?
  13. mrzooom

    Sank the 'ol girl!?!

    I'll verify...and report back... Thanks for the support.
  14. mrzooom

    Sank the 'ol girl!?!

    I knew there might be a difference...anyway, Yes, It says "external"...so what aftermarket coil can I buy?
  15. mrzooom

    NO SPARK!!!! Thunderbolt IV headscratcher

    Just try this even if doesn't sound right...I took black ground from manifold screw and mounted it with the other wire under the module mounting screw All of a sudden I had spark!?%§@#$&. Did this today.
  16. mrzooom

    Sank the 'ol girl!?!

    So in re process of elimination, can I swap out the coil for a new one I had lying around for my old 140 (points style)??? I've got spark (yellowish/reddish) and yes it arcs over 1/4 inch.... so on another.note, now I'm wondering if my mechanical fuel pump is somewhat clogged up as was my...
  17. mrzooom

    Sank the 'ol girl!?!

    Ok, so I do have a back up ignition module... should I replace cap, rotor, sensor and wires and plugs while I'm in here? Oh, and are coils for the TB IV cross compatible with older non-TB IV system?
  18. mrzooom

    Sank the 'ol girl!?!

    Yes, changed oil 2x so far. Fresh water only. I will drain fuel and replace with fresh today...can the water corrode or short the ignition module? I will check voltage at the coil as well...
  19. mrzooom

    Lost gearage?

    So I need alpha gen 2 period. Ok. I'll deal with that. Thank you guys very much. Now that I'm completely depressed just short of suicidal (figuratively of course)...
  20. mrzooom

    Lost gearage?

    Bondo, thanks. This makes better sense now to me...
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