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  1. Alumarine

    Mercruiseer Prop Hub removal

    It looks to me like. Prop 2 is a newer style than prop 3. Prop 2 uses a removable hub. Prop 3 is non removable. I'm guessing you're trying to replace prop 3 with prop 2? If that's the case, you need the hub for prop 2.
  2. Alumarine

    Anybody hear of an Excel 175 speed boat

    I believe there was a manufacturer of Vanguard and Excel boats in Manitoba, Canada. I'm guessing 70's-80's?
  3. Alumarine

    Bellows Adhesive application

    Never used adhesive there either.
  4. Alumarine

    Quick confirm: oil mix

    You're right, it's 50:1. Some people think more is better but in this case it's not. Is there no autolube on that or has it been disconnected? Not sure what years they started with autolube.
  5. Alumarine

    Where's manual tilt?

    I believe for either system the control knob is at the bottom of the pump. It's only for manually tilting UP. If you want it to go down you will have to relieve pressure on the up line.
  6. Alumarine

    1980 Merc 50 hp won't shut off choke

    The choke is controlled by an electric solenoid. When you push the choke button or push the key in it activates as long as the button or key is pushed. You can check for correct operation by removing the cowl and look at the carbs while you activate the choke button. The chokes are the brass...
  7. Alumarine

    Trying to determine Overall Drive Ratio

    Hi there, I need some help determining the final drive ratio on my 3.0. It has what I believe is a #1 upper and a MR/Alpha lower. I took the top cover off. The upper gear set is definitely a 20/24 as I can read the number 43-55766 on it (and I counted). I marked the top of the drive shaft into...
  8. Alumarine

    Need Coil Voltage Help 140 / 3.0

    I'm going through my wiring and thought I'd check my coil voltage. I'm confused with the results. With the motor running at 1000rpm and Voltage at Battery is 14.37 At Coil Pos and Block I get 11.9 volts At Coil Pos and Coil Neg I get 1.39 volts At Coil Pos and Battery Neg I get 11.9 volts If I...
  9. Alumarine

    Purple Wire voltage confusion

    Hi there, I did a search on "purple and voltage" and read through 7 pages without finding an answer. I was installing a temp/oil pressure alarm under my dash and was checking voltages. I've run the black lead of my tester to the negative post of the battery. On the BAT terminal of my ignition...
  10. Alumarine

    MR and Alpha Trim Cylinder Compatability

    I have an MR drive with a leaky trim cylinder. It's the type with internal lines. Can I replace the one trim cylinder with one from a Alpha 1 with external lines? thanks
  11. Alumarine

    How to send Bitcoins to nefarious people?

    If I've posted this in the wrong area sorry, please remove or delete. I'm hoping someone in our community here can provide some help. A friend got a Crypto virus and she has to send a Bitcoin payment to get the files unencrypted. Has anyone had to do this? I'm trying to make sure she doesn't...
  12. Alumarine

    Drop or Straight Axle?

    Hi there. I have an 18 ft. Sylvan on a bunk trailer that currently has a 3500 lb 4" drop axle. The current axle is mounted on top of the leaf spring. It's bent so I'll be replacing it. I can get either a straight or drop axle for the same price. Should I stick with the drop axle or is there...
  13. Alumarine

    Honda 1981 7.5 hp fuel leak from carb

    Hi there. Went to start my 7.5hp for the first time this year. I pumped the bulb till it was firm and it started 2cnd pull. Unfortunately fuel was pouring out of the carb somewhere. I shut it off and noticed when I pump the bulb, fuel comes out of the carb where I've circled it in red. I tried...
  14. Alumarine

    lost plastic tube on aft end of lower shift cable

    As the title says, I "misplaced" the white plastic tube on the aft end of my new lower shift cable. I put it in a good place for "safe" keeping. It is indeed safe wherever it is. I have an old one that is almost complete except the threaded portion is broken off and gone. Is it ok to just use...
  15. Alumarine

    Transom Plate and Front Motor Mount not quite parallel MC140

    I'm in the process of replacing the transom in my Sylvan with MR drive 140hp. While test fitting my Gimbal Housing and Transom Plate I noticed that my transom plate and front motor mount pad are not quite parallel. I was wondering how critical this is? I drilled 1/2" holes through the...
  16. Alumarine

    Transom Cutout drill size MR drive

    Hi there. In the process of rebuilding my transom. I'm about to make my transom cutout and drill the 6 mounting holes for the transom plate/Gimbal Housing for my MR drive. The only drawing I've found shows a hole size of 9/16" Just wanted to confirm if that's correct. Seems good for the 1/2"...
  17. Alumarine

    Will 4.3 Distributor work with 3.0?

    I can get a 1993, 4.3 distributor for a good price. Can I use it in my 1980, 3.0? If so, would this be a worthwhile upgrade? thanks
  18. Alumarine

    Dipstick Tube Depth 3.0

    Hi there. I noticed the distance between my dipstick tube and the bottom of the oil pan was 9/16". That seems excessive to me. Does anyone know how close it should be to the bottom of the pan? thanks
  19. Alumarine

    1980 3.0 140 Rear Main Seal

    I've got a question for the motor pro's I'm replacing my transom so I have my 1980 3.0 140 on a stand. I took the oil pan off to remove some rust and paint it. Should I replace the rear main seal at this time? Or leave well enough alone. According to a tag on the motor it was rebuilt in 1993...
  20. Alumarine

    Merc 150 4 stroke pressure test

    I was changing the lower end oil for a friend and there was a bit of water in the oil. It's a 2012 Mercury 150XL 4S 4 stroke Model 1150F23HD. Before I pressure test it I want to make sure that a) it's ok to pressure test this drive and b) if it's ok, how many psi to use. Also, is there a...
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