Recent content by Chris1956

  1. C

    Tohastu 20hp Gear lube incident and oil leak

    I would remove the filter and empty it. Now reinstall it and add the correct amount of new motor oil. The residual gear lube should not affect it much. Remember STP, motor honey and other motor oil additives are simply thicker oil, as is gear lube. Now diagnose the real problem.
  2. C

    1986 Mercury control box tachometer plug

    Both female and male ends of the connectors should be the same shape. It sounds like yours are not. What is the layout of the connections? On my '77 the ground and power spade connections were vertical. The tach signal spade connection was horizontal.
  3. C

    Pipe-mounted bunk bracket?

    Check Eastern Marine in Delaware. They have a good selection of trailer hardware.
  4. C

    No tach,no charging

    That is normal behavior for the tach.
  5. C

    Checking the Wiring of the Assist Solenoid

    The slave solenoid battery post is often used as a junction for all wires carrying a continuous +12VDC power. So if you have any wires that are unconnected, see if they belong there.
  6. C

    No tach,no charging

    There is no bench test for a voltage regulator that I know of. You could feed it 16VAC and see what it puts out. It should try to put out about 14VDC Let's see, your furnace thermostat runs on 16VAC, so cannibalize your heating system and go from there.
  7. C

    No tach,no charging

    yes, but OP said no AC voltage on the yellow wires, when the engine was running, but DC voltage there? That is not the way it should work. If there really was DC voltage on the yellow wires, the stator would be an electromagnet and discharge the battery.
  8. C

    No tach,no charging

    I do not think you should have gotten any DC voltage on the yellow wires. The rectifier in the VR would have prevented that. You might check your voltmeter dc scale on a known DC source, like the battery.
  9. C

    Where were you 25 years ago today.

    Gee, I had gone on a 24 hour tuna trip the day before. I was sleeping in my bed when the first plane hit. Wifey woke me up at that time and I saw the second plane hit. I assured Wifey that our son was safe at school, since Bayville, NJ was not a high value target, like the terrorist's...
  10. C

    Sylvan Swim Ladder Strap Replacement - Cant find this exact setup?

    Gee Scott, IMO anyone with a hammer, snap kit, a scissor and a piece of web strap can make that strap. I made a set of straps like that, only longer, stretched over a ridge pole, to hold up my winter cover. They snap to the boat gunwales.
  11. C

    No tach,no charging

    You can also, disconnect the yellow wires and run the motor on a flusher and look for AC voltage on the two yellow wires. I would expect 100VAC or less, so start with the meter set to a high AC scale.
  12. C

    No tach,no charging

    Check for a fuse in the charging circuit. I don't expect one, but some Mercs had 'em in the wiring connectors. Make sure the tach is not shorted to ground. Then Ohm out the stator across the two yellow wires. Stator should be .18 - .45 ohms, so not a dead short.
  13. C

    No tach,no charging

    You can get replacement VRs both OEM and aftermarket. I think I installed the Sierra or CDI brand. They work just fine.
  14. C

    No tach,no charging

    That is a voltage regulator. Likely a 20A version. Replace with the same. This is a rectifier. It is simply a bridge of 4 diodes. The connections are 2 AC terminals that go to yellow. The grey tach signal wire also connects to one of the AC terminals. The + terminal gets the red wire...
  15. C

    safety chain question

    Some carabineers look strong, but are real wimpy. If you want it strong get a shackle.
Top