Recent content by mattdd

  1. M

    Merc 3.9 water pump

    I rebuilt the water pump of my '68 3.9hp with all new parts, minus the housing, 4-5 years ago. took it out this past weekend and it wasn't pumping water. got it apart and the impeller is disintegrated. It dosent get used but about 2-3 times per year, so not a lot of hours on that part...
  2. M

    How to remove carb from 1968 3.9hp

    Cant figure out how to get the carb off. The choke lever blocks it from pulling off the bolts. The choke Lever dosent have room to be removed with the carb on. Is there some secret?
  3. M

    test running ski

    i'm thinking about buying my first jet ski. its gonna be used so i was wondering if there is any way to start them out of the water. do you need to hook up a hose or just not run them very long? i'm clueless on it.
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    what is your routine getting off the water.

    i just upgraded from my older alum bass boat. after getting it off the ramp i pretty much just made sure it was strapped down well, drove home and parked it. my new one is a nicer alum bass boat which is painted exterior and the interior is much nicer. it occurred to me that it might require...
  5. M

    Fuel leaking out of carb while running

    i took my 1968 3.9hp merc out on the water for the first time after rebuilding LU. It starts and runs great in the bucket and on boat, but when I hit shallow spots on the river I had to tilt it up a little. When it was tilted fuel ran out of the carb?not a stream, but not drops either...
  6. M

    1968 3.9hp corroded drive shaft

    the drive shaft on my outboard is corroded around the water pump seals....which is apparently common on these motors. i've followed up on all suggestions i've read here and else where, but no luck. the speedi sleeves that some use to repair the seal area do not go small enough for my...
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    Bearing Carrier Cover Nut tool

    made from scrap. 30 minutes of cutting and welding.
  8. M

    Putting LU back on

    i re-sealed my 1968 3.9hp LU and went to put it back on the motor and the shift shaft wasn't lining up right. after manually turning the shaft and shifting at the motor a few times it seated. it was late and i didnt have time to test run it, but i did pull the rope a few times. in each...
  9. M

    what is this part....

    ...and is it critical? it goes right in front of the air intake on the carb and mine is missing and theres just an open hole in the lower cowl. seems like its going to be hard to find. is it a flow restriction that limits air flow or can i just block the hole with something?
  10. M

    removing drive shaft

    the drive shaft on my 1968 model 39 has grooves worn from the water pump seals. the machinists at work can rework it back into shape once i remove it from the LU. it seems like this might be a fairly simple process but the manual has me a worried. it is referring to lot of backlash and amount...
  11. M

    68 model 39 - leaking lower unit

    i just bought a '68 model 39. first thing i did was drain the lower unit grease as well as take off the lower unit to inspect the impeller. the grease, which had been in the lower unit for just a few minutes while it ran in a 55g drum, was milky. and there was some grease in the water pump...
  12. M

    small gas motor vs. trolling motor for canoe

    i have a colman scanoe with flat transom. i want to put a motor on it and am looking for opinions on which type. either would be bought used. gas would be 5hp. more power then trolling and a few gallons would last longer then a battery. gas would have to be registered which would be...
  13. M

    what info do i need for bimini top

    do i just need my beam width and get one that matches that. i have an 18' lowe condor, its basically a jon boat with bass boat decks. the top of the hull is just round, and not sure if i need special hardware to connect to it.
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    need opinions for new boat

    i'm ready for a new to me boat. current boat is a '88 18.5ft lowe condor w 90h yamaha. a flat bottom jon boat that is decked as a bass boat. i use it to get to my deer hunting spot and the river closest to my house can be shallow so its perfect for both. just want something that can fit more...
  15. M

    Roller bunks

    right now i have 8' 2x4 carpet bunks on my 18.5' flat bottom boat. they need to be replaced and i have been looking at roller bunks. the longest ones i can find are 5'. my trailer has 3 crossmembers so theres room to attach them, but is this enuf support for my boat. it weighs 2225 including...
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