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  1. dwco5051

    Starter and choke issue

    Did the parts store actually load test the battery or did they just check the voltage as it sat? Did you unplug the wiring harness from the motor and check for corrosion? It is time to start checking voltage at various points in the system while engaging the starter rather than just start...
  2. dwco5051

    Random

    Reminds me of the definition of an optimist as a person who would order a Yugo with a trailer hitch.
  3. dwco5051

    Need help on changing every wire on my sterdrive engine

    For us owners of older motors and boats the dreaded NLA part number is the acronym for "No Longer Available".
  4. dwco5051

    Hey Newbies

    Back in 1972 I bought a ’69 Crownline with a Mercury 120 stern drive and froze it the first winter with about a 3 inch crack on the port side of the block. Sanded the paint off around the crack and patched over it with PC-7 epoxy. Ran the boat for about 4 more years and gave it to my Dad who...
  5. dwco5051

    Need help on changing every wire on my sterdrive engine

    Here's a start; https://www.electricaltechnology.org/2020/07/marine-boat-cable-wire-color-codes.html What shape is the rest of the boat in? What boat? What motor? Depending on knowing that we may be able to give you some pointers.
  6. dwco5051

    Auto AC stats and questions

    You say you were pulling 30"hg. How was that measured? When evacuating a system you need be talking about miccrons. Takes a good (read expensive) electronic gauge and pump be able reach 50 microns. If you can pump down to 150 you probably got most everything out of the system.
  7. dwco5051

    mercruiser 7.4 (L29) firing order

    Could be something simple like an pulled lanyard for the safety kill switch. Did you pull the distributor or have anything else off. Need a little more info on what been checked up to now.
  8. dwco5051

    1970 Springbok speedometer

    Those old speedos were nothing but a simple pressure gauge and can be tested by putting air pressure to the tube on the back of the gauge. It may not be broken but be just a clogged pickup or the hose is clogged or broken. Has he actually tested it? Won't cost you a cent if it is fixable.
  9. dwco5051

    1970 Springbok speedometer

    Is he restoring the boat to look original and is there a nonworking speedometer or a just a hole where one was? Or does he just want to add a speedometer to see how fast he is going?
  10. dwco5051

    Are Adhesive Keel Guards Effective?

    Yes I would recommend for your situation. I talked the powers above me to have one installed on the last patrol boat I operated. There were many times we would have to go to shore and could not pick the ideal spot It probably added several years to the life of the hull.
  11. dwco5051

    1999 Caravelle VDO Speedometer

    That signals the start of the computer game called finding a part for 20 year old electronic item. You are going to have to find the make and model as the transducers are not universal. A picture of the gauge along with any number and/or text printed on the side or back of the gauge might...
  12. dwco5051

    1999 Caravelle VDO Speedometer

    That was just one I picked up off the net to display. The one you would need depends on the make and model of your gauge. I would first check that the wheel on yours is free to spin. If it is I would next power the gauge and spin the wheel with a finger and check if the gauge show any thing...
  13. dwco5051

    1999 Caravelle VDO Speedometer

    I think your transducer would be similar to this. Notice the paddle wheel on the transducer that generates an electrical signal to the gauge.
  14. dwco5051

    New boat

    It is my desire to never sleep on a boat again. You can get a lot of bodies in a small space if you design it right.
  15. dwco5051

    Correct spark part size

    The 5ES is a hotter plug than the 6ES. There is always a chance that running a plug that the tip is hotter could cause detonation. Whether that could happen on your motor I have no idea but is always a good idea to run the plugs recommended.
  16. dwco5051

    3.5 hp Montgomery ward sea king running issue

    Well, mea culpa. The sticker is calling for 16/1 ratio. The problem was probably not related to running 50/1 but either adjustments or dirty carb jets. I remember 60 years ago when I ran motors like that all the time it was an art akin to witchcraft to fine tune the fuel. Adjusting the...
  17. dwco5051

    3.5 hp Montgomery ward sea king running issue

    Proper mix for that engine is 24/1 of air cooled oil (Chainsaw oil) not marine twc which is for water cooled outboards.
  18. dwco5051

    Mercury 850

    First get a spark tester. Even a cheap 4 dollar on like this will show if you are getting the same spark on top two vs bottom ones. Since it is the top two cylinders that are not firing what is common to them? One set of reed valves and one carb. I am not discounting water intrusion either...
  19. dwco5051

    Mercury 850

    If the change in plug wires makes no difference I would think about the top carburetor. Take the air silencer off and move the throttle back and forth and check that the linkages are moving the butterflys together and the chokes are moving together. If so maybe it is time to at least pull the...
  20. dwco5051

    remove woodruff from tapered shaft?

    A key on a tapered shaft is mostly for alignment purposes. The flywheel on an outboard must be aligned for timing purposes and it is assembeled dry and depends on the taper for resistance to turning. The exception is rotary lawn mower motors that use a straight flywheel shaft and a square...
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