Recent content by OldNBold51

  1. O

    Mallory, Genuine mercrusier or sierra. Which one?

    I've searched and I really don't like the search engine on this forum as, well, I couldn't find what I'm after. That being said, i need to install a transom replacement kit for my 1995 Bravo 1. I need the gimbal bearing, all 3 bellows, and the seals/o-rings. It looks like i need p/n...
  2. O

    Help me troubleshoot my depth finder install

    I needed to replace my 18 yr old lowrance 3500 with a working unit. Old unit worked fine until recently, then nothing. The new unit i chose was the cheapest out there, the Hawkeye D10X which has shoot thru hull technology. I'm afraid I might have went too cheap as the unit only seems to...
  3. O

    No Spark resulting in Tow of Shame 7.4L Thunderbolt 5 ignition

    While going down the lake after 10 minutes run time, the old girl just quit, almost like I'd turned off the key. Gas showed 1/2 tank and visually saw AP squirting in carb. A spark check showed nothing. nothing at the plug when grounding at engine, nothing at the coil wire to distributor cap...
  4. O

    will a low float level affect idle?

    I'm having idle problems now after setting my float level lower than spec'd. Boat runs fine when idle at 1K rpms but shudders and barely runs at below 800 rpms. this is a new problem developed after my old gas issue from a few weeks ago. No issues at all when cruising down the lake but idle...
  5. O

    BAd gas? what are the symptoms? Won't start now.

    95 7.4L wellcraft.4 barrel Webber. 2 weeks ago I pulled her out to get it ready for the season. I had put stabil inb the gas before the parking her. I did not fill the tank to the top, just added stabil.. Upon trying to crank her, i ran the battery down without any hint of firing. I opened the...
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    7.4L dies and won't restart

    I've been having troubles all summer long on my 95 7.4L. I can't tell if I've a fuel problem or fire problem as the symptoms disappear after a period of time. This is why I'm leaning toward my problems being heat related...like the coil or ignition system is getting too hot. I wish it would...
  7. O

    Help! 7.4L intermittent then fairly constant misfiring/stall/die problem

    Guys, here are my symptoms: Boat is a 95 wellcraft 232 with 7.4L carbed engine with thunderbolt ignition serial # OF437981. Over the last 6 hrs of run time, spread over 3 outings it began to have intermittent firing problems, now it's full time. Initially after a 10 minute warmup/idle cruising...
  8. O

    Temp Gauge Mystery Solved

    After chasing the problem of my temp gauge not working, even though all the tests for the sending unit and temp gauge showed individually they worked, I finally got the gauge to work!!!! The previous 2 sending units were aftermarket units sold over the counter by my Merc dealer. This time I bit...
  9. O

    New Exhaust Shutter Valves Install ....problem

    I bought new OEM mercruiser replacement shutter valves to replace the original shutter valves. This new valve is a superceded part number to the old one. While the new one installs easily, there is a lot of slack where the pivot pin of the shutter valve slides into the exhaust housing. The new...
  10. O

    Opinions wanted: Adding a Raw water intake filter

    I've been thinking about adding a raw water intake filter to my 7.4L engine this winter. What are the pros and cons and where can I find a decent filter? How should I mount it and what are the pitfalls to look out for?
  11. O

    Crankshaft balance question: Gen V vs Gen IV

    I've a 7.4L powered 23' Wellcraft '95 model (Gen V). I've had to repower this year and due to circumstances (read $$) I installed a Gen IV block and crankshaft. I used the flywheel from the gen V on this gen IV. My question is if there is a balance issue difference that I need to take into...
  12. O

    Would a stuck closed exhaust flapper cause knock?

    I've been trying to locate my engine knock on my 7.4L with 58 hrs on rebuild. With the engine out, so far the only thing I've seen obvious was a stuck exhaust flapper that needed a hit with a hammer to dislodge. When I last sea tested, while loading boat on trailer, there were good size rollers...
  13. O

    I've developed a knock. Advice needed

    here are the details: This is my 1st I/O but many years of wrenching under my belt on cars/outboards/dirt bikes. 95 wellcraft 232. 7.4L engine with 55 hrs on rebuild. I'm the second owner with total of 55 hrs me owning. I've no history or maintenance schedule to reference but during rebuild all...
  14. O

    Popping and creaking during backing normal?

    This is my 1st tandem axle trailer with a 4000 lb boat on it. During backing and manuervering I hear popping and creaking going on. I can understand the forces going on back there as I see the front axle tires are being forced to slide and give due to different radius turns of front vs back, but...
  15. O

    Temp difference between risers ?

    While I'm still battling the temp gauge/sending unit issues on my 95 7.4L 232 wellcraft,(no gauge temp reading) I'm always testing the cooling of the motor by doing the "5 second rule" test by resting my hand on the risers. After a lengthy easy run (2800 rpms), the port side riser is noticeably...
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