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  1. Eric 3.7LX Alpha 1

    MCM 165 Seawater intake problem

    What do you mean when you say the camshaft appears fine? I'm not sure how you can tell until you take it apart. If your leaking from the weep hole, the 1st seal on that cover that the camshaft rides on is leaking by. The engine circulation impeller doesn't usually get worn out, the rubber seal...
  2. Eric 3.7LX Alpha 1

    Trim Pump Wiring Help Please

    If you send 12 volts to that blue wire and the black ground wire on the motor is grounded well, it will bypass the solenoid wiring and power the motor to run up. Jumping the two big posts should will do it, as long as there is 12 volts on the other post. A test light or multi meter will confirm...
  3. Eric 3.7LX Alpha 1

    Clickity clack

    Wow, that could have been catastrophic.
  4. Eric 3.7LX Alpha 1

    Gimbal Bearing Noise?

    Merc's spec for impeller replacement is 2 years or 200 hours. Here is an attached photo of Fishermark's bellhousing with the upgraded seal/bushings so you can see the difference
  5. Eric 3.7LX Alpha 1

    Gimbal Bearing Noise?

    It looks like you have the older style shift shaft bushing/seal in the bell housing. They have been redesigned and is more beefier, it keeps water from the exhaust cavity from getting into the shift cable area. That part that fell out is the exhaust shutter. That's half of it. They do that if...
  6. Eric 3.7LX Alpha 1

    Gimbal Bearing Noise?

    If the drive hasn't been pulled in 10+ years, there's going to be some work there: new bellows, lower shift cable, possible gimbal bearing (if it feels bad, you will know when you turn it by hand), Complete impeller kit, shift shaft seal/bushing kit in the bellhousing all should get it back in...
  7. Eric 3.7LX Alpha 1

    What outdrive do I have?

    If it's a new to you boat, and you don't know the history... get the full impeller kit including the base, which is sold separately.
  8. Eric 3.7LX Alpha 1

    Gimbal Bearing Noise?

    When was the last time the drive was pulled? I'd pull the drive, stick your fingers in the gimbal bearing and give it a turn, see how the bearing feels.
  9. Eric 3.7LX Alpha 1

    1979 cobalt shift question

    The shift interrupter switch is not working right, may be disconnected. Go to the beginning of this forum and click on the "Adults Only" sticky. There is a write up on how the interrupter works and troubleshooting.
  10. Eric 3.7LX Alpha 1

    Water in oil pan!!

    Yeah, that wouldn't work here in my house. 😆
  11. Eric 3.7LX Alpha 1

    Alpha 1 Gen 2 upper gear preload

    AcDelco makes a couple different ones, not sure on the accuracy of them. #ARM601-3 and ARM602-4. Looks like they read inch and ft lbs. up to a certain amount.
  12. Eric 3.7LX Alpha 1

    MCM 165 Seawater intake problem

    Yes the VR is water cooled. There's a good chance you blew the head gasket with an over heat with the block being aluminum and cast head, and different expansion rates. The engine water pump is not like an automotive one you have in mind. It is an impeller bolted to the end of the camshaft. Here...
  13. Eric 3.7LX Alpha 1

    Trim pump wiring help

    Green and blue are both power/hot wires. green is for grass/down, blue is for sky/up. That's how I remember them. There should be a separate black ground wire for the motor.
  14. Eric 3.7LX Alpha 1

    Mercury 4cyl stumbles at hole shot and underway

    Yes, it's possible. There are two tests in Mercruiser Service Manual #1 you can try. Pump volume and pump pressure test. (I have the page attached). The manual doesn't mention anything about an inline pressure regulator. What was the story behind it? Some pressure regulators have a tapping on it...
  15. Eric 3.7LX Alpha 1

    Mercury 4cyl stumbles at hole shot and underway

    You mentioned you had the same issue last year, you changed the fuel pump, filter and rebuilt the carb. Did the issue go away after changing/fixing those things or are you still chasing this problem continuously since then?
  16. Eric 3.7LX Alpha 1

    TDC0 on Merc 140, while engine in boat

    Here is a trick to adjusting valves from a machine shop owner similar to what alldodge is saying:
  17. Eric 3.7LX Alpha 1

    1984 mercruiser no start when in water

    What happens when you say it will not start? Are you getting just a clicking sound, no sound, is the starter cranking the engine over and it's not starting?
  18. Eric 3.7LX Alpha 1

    Trouble pulling skier out of the hole

    Pitch is the angle of the 3 blades. They make the same diameter propellers with different angles of the blades... called pitch.
  19. Eric 3.7LX Alpha 1

    1986 mercruiser shift cutout (interrupter) switch problem

    Sounds like a points ignition. The White/Green wire should be connected to the (-) on the coil not the distributor. The only other wires on the (-) on the coil would be a grey colored wire which would be the sender wire for tach if you had one. (It should not be grounded), and the Black wire...
  20. Eric 3.7LX Alpha 1

    No start merc 4cyl

    Okay, how about getting some gas in each cylinder thru the spark plugs hole then throw the plugs in. If your getting spark, then your going to get some sign of firing, sneezing, something.
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