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  1. Pbdy Jr

    Prop selection for mercruiser 3.0 alpha one

    I just took my searay out on the water and at wot I only got to 4000 rpm at 32 mph. Obviously something isn't right. Currently I have a 14 1/4" 21p mercruiser aluminum prop. 48-832832 cl 21 What should i try for the right pitch to bring the rpm up and speed up. Boat is a 16' searay
  2. Pbdy Jr

    Rain problem. How do I fix it

    It's raining. A lot. Can't take the boat out. Anyone know how to stop the rain? I need to get on the water to further trouble shoot this boat
  3. Pbdy Jr

    Boat doesnt want to start while in the water

    PLEASE HELP!! Boat starts and runs in driveway.In the water,does not want to start. Okay, so this season my boat decided to give me a hard time... I was out on the lake as normal and when it was time to come in, i pulled up my anchor and went to start the motor.... It just kept turning over...
  4. Pbdy Jr

    Changing Alternator / Power steering belts Mercruiser 3.0

    Ok, I know im going to sound foolish, but I had an alternator belt snap and need to replace it. I figured since its behind the power steering belt, I will change that one as well. So I see the spacer that needs to come out to get the alternator belt in there, but is there an easy way to replace...
  5. Pbdy Jr

    Simple Question.. Thermostat location????

    I have A mercruiser 3.7 165 i/o s/n B516408 I bought this off a dirty seller and have done soooo much to it. i now hit it running and going into gear and shifting properly, but it overheats. I pulled all hoses to the heat exchanger and cannot locate a thermostat anywhere. Where should...
  6. Pbdy Jr

    3.7l 165 hp i/o freshwater cooled overheating. Please help. I want to get out there

    I have done so much to this boat and now it is overheating on me. I don't know much about this cooling system so I desperately am seeking advice. What would cause it and where do I even begin to troubleshoot? It has a freshwater cooled self contained system. After i ran it for a bit the...
  7. Pbdy Jr

    Helllllp Again!!! Problems with my boat shifting into gear

    Ok so I finally got this thing going and it seems to run and sound great!! Freshwwater cooling system is functioning. Not one drop of a leak anywhere.. But now I have a new problem. I need help. I cannot get the boat from what seems to be in forward and into neutral or reverse. I was looking at...
  8. Pbdy Jr

    wiring my new electronic ignition

    I have purchased a pertronix ignitor electronic ignition and a flamethrower coil. I was hooking this up but was unsure where these wires from my old coil should go. SEE PHOTO(s) the grey wire appears to go from the tachometer to the negative on the coil. should i put this back? the...
  9. Pbdy Jr

    Help resolve an argument. 165 4cyl. I/O.

    Simple question. do you need a stator in order for spark to be produced in the starting process of a boat? We are currently arguing tthe purpose of a stator. One of us says it creates spark and the other says its a primitive charging system.
  10. Pbdy Jr

    Electronic ignition and coil installation

    Ok so I have purchased the electric ignition and flame-thrower coil. I am going to install it but can someone help me and make sure i am going to do it right. Electric Ignition - black and white wire goes to negative terminal on coil. black wire goes to the wire i removed from the coil...
  11. Pbdy Jr

    How do i find a parts list for my motor... Or the exact motor type

    I have a motor that is stamped GM 689732 It also has a metal tag near the starter that is a Mercury serial # 330851 HEEEEEEEEEEEEEEEEELLLLLLLLLLLLLPPPPPPPPPPPPPPPP
  12. Pbdy Jr

    Anyone Know the appropriate voltage to the Ignition Coil??

    I have a regulator wire traveling to the choke, and the other wire travelling to the starter slave solenoid. With the Ignition turned on, i get twelve volts through these wires. If i crank the motor, it drops to 9 volts. However, these readings are with the power unhooked from the coil. When i...
  13. Pbdy Jr

    "SEA TURD" Mercruiser 165 Ignition Coil Test HEEEEEEELLLLLLLLLLLLLPPPPPPP!!!!

    "SEA TURD" Mercruiser 165 Ignition Coil Test HEEEEEEELLLLLLLLLLLLLPPPPPPP!!!! Ok I have named my 19'6" Larson the "Sea Turd for a reason.. I am tracing my no spark issue and currently am looking into a possible ignition coil problem.. I have a Napa coil that needs an external resistor...
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