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  1. makomark

    Merc 4.3 thunderbolt ignition tach issue

    I thought the early 1990's 4.3's came with a 1.81:1 gearset...if yours has the 1.62:1 gearset, it will likely be slow to accelerate...
  2. makomark

    1979 Chris craft mercruiser 454

    i hope the distributor you are using is marine rated....
  3. makomark

    1979 Chris craft mercruiser 454

    Standard production GM blocks from that era that are RH'ed use a gear drive between the crankshaft and the camshaft...the distributors are the same for LH and RH engines...
  4. makomark

    1979 Chris craft mercruiser 454

    That means somebody has been into the engine harness...hopefully, they used tinned wire and sealed connectors....
  5. makomark

    1979 Chris craft mercruiser 454

    Depending upon the serial number and the specific version, there may have been resistance wire in the harness...if the jumper Bondo described makes a difference, it may be worth checking into...
  6. makomark

    1979 Chris craft mercruiser 454

    The TB-IV systems generate a crisp blue spark when the are functioning correctly...likely bad connection in the +12VDC feed to the coil...
  7. makomark

    Blew another seloniod on 1976 Ford 302

    i think the starter for either will have the same number of teeth... If you have the 164 tooth flywheel and a starter for the 157 tooth flywheel, the starter gear is likely binding against the flywheel. The ring gear on the larger flywheel sits closer to the block
  8. makomark

    Engine Ticking noise

    probably a lifter
  9. makomark

    1979 Chris craft mercruiser 454

    I'd guess it is easier to fix a wire than to swap out the entire distributor...but its your call there....just make sure the ACCEL HEI unit is marine rated...
  10. makomark

    1979 Chris craft mercruiser 454

    you can always check the spark coming out of the coil....
  11. makomark

    1979 Chris craft mercruiser 454

    have you pulled the aft-most pair of spark plugs to make sure water isn't flowing in from the exhaust? Also, you say you have spark - is it a good clean snapping blue spark or a weak quiet yellow spark? Are the cap and wires OEM or aftermarket?
  12. makomark

    1979 Chris craft mercruiser 454

    ooook....has the STBD engine ran since "had work done" occurred? what 'work' was done?
  13. makomark

    Blew another seloniod on 1976 Ford 302

    Understand...did a little digging and found you need to know what flywheel and ring gear combo you have to ensure you get the correct starter on the SBF's.... Have you ever had the engine running - in other words, did you rebuild it or did you acquire it after the rebuild? Getting at the...
  14. makomark

    Re-painting painted aluminum boat

    The "add hardener to the can and spray" approach will yield a much more durable finish than the rattle can by itself...if you don't have a sprayer, a good brush will work...its the hardener that improves the durability...
  15. makomark

    1979 Chris craft mercruiser 454

    If you have fuel and spark, you also need compression. Refining the list of essentials, I'll add you need a water-free combustion chamber and to make sure the spark occurs at the correct time (initial timing). Being as you've said nothing, I'm assuming the starboard engine had some level of...
  16. makomark

    Blew another seloniod on 1976 Ford 302

    If you have a duralast battery, that suggests you have an autozone close by...they should be able to bench test the starter...
  17. makomark

    Engine Ticking noise

    does the tick rate vary with engine RPM? quantify "higher than normal temp"...?? Assume the oil change included the filter and didn't make any changes?
  18. makomark

    Blew another seloniod on 1976 Ford 302

    Your plan on the purple wire re-route makes sense with the extra detail. As far as anything tied to your Ford, they have been standard production for the marine environment for decades. finding a part isn't hard as most everything that fits the 302's fit the 351's...a lot of people are...
  19. makomark

    Blew another seloniod on 1976 Ford 302

    IR thermal guns are very handy ... I think they are great for debugging... Is there a good starter & alternator shop in your vicinity? I would think they could test the starter and tell you if it spins 'normally' - if it does, then you still have a wiring issue or two to resolve. I don't see...
  20. makomark

    1986 Crusader 454 electronic ignition conversion problem

    typically, you get what you pay for...i did a quick search as I have never heard of them...and I didn't see any details that gave me a warm and happy...nothing on warranty default timing curve, or adjustment of the timing curve.... Back when Mallory was a high quality producer, you could get a...
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