Search results

  1. C

    Hard plane after switch from points ignition

    Those timing numbers are terrible. Put the original distributor & advance system back in the engine.
  2. C

    Merc 4.3 TKS dying at idle

    Have you adjusted both the Idle Mixture and Idle Speed screws after the engine has fully warmed up ?
  3. C

    '89 Merc 3.0 - electronic ignition conversion PNs

    Electronic anything is called the best thing since bread. Buy a cheap Dwell Meter and magnifying glasses. You can now ACCURATELY troubleshoot any loss of ignition spark in your engine. Points capacitator H V coil and the voltage dropping resistor. You can carry a full set. Or get a fully...
  4. C

    prop question

    I asked Power Tech to give me the " Grippiest Prop " they made. He said I could lose 5 mph. The PTC4 prop allows me to run down P W C that cut as close to my boat as possible. That all stopped when I turned VERY sharply into them. We missed each other by 5 to 10 feet at about 47 mph. End of...
  5. C

    prop question

    Decades ago I checked with the racing division of High Five props. He said the prop wastes lots of hp & acceleration. I am very pleased with my Power Tech PTC4 S S props. They are so grippy and efficient that I do not need to use the drive trim at all. The boat has no bow rise it simply...
  6. C

    prop question

    Web search Power Tech Props or Prop Gods They were both excellent. More important is how efficient is the prop under load and speed. Power Tech had a simple exchange program. Call them for prop advice when you are doing different loads. I have 2 props for different loads.
  7. C

    MerCruiser update

    If you can afford any NON TOXIC about 35 to 55 gallon drum ? Mix up in it a correct mixture of Anti-freeze solution. REMOVE the prop !!! Run the motor in the A F drum. Until it heats up to correct heat and the thermostat opens fully. Add more A F if needed. Run again to circulate the new A...
  8. C

    MPH not showing on Gage OX66 motor

    Time for a FREE question to your Yamaha dealer on where the Lower Unit inlet converts water pressure to a electrical signal. It could be done right in the Lower Unit. Or tubed up to the powerhead of the motor.
  9. C

    Kill switch wiring question

    Both of my connector cable assemblies work fine. You MUST have that special black molded part that slides onto the kill switch. And it must push the switch button down. You can test the kill switch By PAINFULLY pushing in and HOLDING IN. The Kill Switch button. ALL of the ignition key switch...
  10. C

    Beauty mark or compromised log?

    DO NOT let just anybody ....ATTEMPT .... to weld those gashes. It will take a fantastic Aluminum Certified Repair welding person. To build up and file / sand down the excess weld ridge. Most people will burn holes. Bigger holes. And quit trying. STAND there when the welder starts. Slightest...
  11. C

    Kill switch wiring question

    It took me a couple of minutes to get the Black / Yellow wires used up. In a way that works electrically. With both wires connected to 2 different places. 1 B / Y wire goes to the lower M switch terminal. ......The M screw terminal between the S and B terminals. Use either Black or Yellow...
  12. C

    Water in bilge while on muffs

    Work first to find & fix the GETTING BIGGER leak. Better than a sudden big leak miles from land.
  13. C

    Beauty mark or compromised log?

    I would really check picture #3 black marks. Are those HOLES in the gashes ? Need a trained Aluminum Eyeballs to determine how much metal is ripped off........... Fresh or salt water boating ? Can you call the boat company and send them These pictures ? Or have them look at this post and...
  14. C

    Oil level too high?

    The full line should be correct and unchanged.......If the dip stick and tube are the correct ones.
  15. C

    40hp Dead Top Cylinder

    WE know the carb is the problem............I have done several carbs over the decades.............BUUTTTT I have rebuilt carbs and they ran.....WORSE !!..... I left out a tiny round gasket under the main jet. I redid the carb 2 times before I found the tiny left out gasket. I always work on a...
  16. C

    Oil level too high?

    DO DRAIN out the oil in the pan !!!!!!!!!!!!!!!!!! Before moving it at all !!!!!!!!!
  17. C

    Oil level too high?

    Scott Danforth is the correct way to fill the pan and mark the dip stick. Support the pan out of the boat. Get it level with a carpenter level across the top of the pan. long way and side way. Measure 3.5 " down on the inside surface of the pan. Put a scratch line that you can easily see with...
  18. C

    Trailer axle capacity/sizing

    Lots of pictures of the boat, trailer and tow vehicle will be a huge help to guide you. What type of brakes does the trailer have now ? Do you know if they work well ? Picture of the front of the trailer. Make and model of the new 21' boat ? Tire size and weight rating on both tires ? Do you...
  19. C

    40hp Dead Top Cylinder

    look up www.crowleymarine.com
  20. C

    40hp Dead Top Cylinder

    After watching the videos. The reduced compression readings look like possible worn out Reed Valves with some possible piston ring wear. New reed valves are cheap and simple. Maybe all that is needed to get closer to 140 PSI compression readings. Bad carb needs to be rebuilt ? Check float...
Top