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  1. Alumarine

    Fiber Optic Connector Width for Drill Size

    Later this week I'm getting fiber installed to my house for internet. To save time for the installer and myself I want to pre drill the holes in my floors where I think I may want the cable at some point. I know it uses an SC connector and I believe it's green if that means anything. Does anyone...
  2. Alumarine

    Tire and Loading Info

    A friend has a 2013 F250 with the 6.7 Powerstroke. He currently tows a 5th wheel camper with no problems. He's thinking about buying a slide in camper and is confused about how much weight he can carry. truck weighs 6800 lbs approximately (he will weigh it) GVWR is 9900 lbs Front GAWR...
  3. Alumarine

    Sterndrive multiple leaks

    Hi there, Just fired up on muffs my mercruiser 140 with MC1 drive and have a few leaks in the stern drive. Motor 140 #5668920 MC1 Drive upper #5654636 Lower MR/Alpha #685xxxx??? Water is streaming out of this hole. Not dripping but streaming. Water and Exhaust is coming out of this hole...
  4. Alumarine

    Cooling System Generic Info

    A friend asked a question the other day which prompted me to ask it here. When running our I/O's or most other motors on land we always use muffs which forces the water through the cooling system. When running kickers out of the water we use muffs if possible but with some motors we use a...
  5. Alumarine

    2013 F250 6.7 Powerstroke

    Hi Guys, A friend has a 2013 F250 6.7 Powerstroke and he'd like to load test the batteries. Anyone know the correct procedure to isolate the batteries fro testing? Hopefully we can isolate them and keep all memory functions alive. thanks
  6. Alumarine

    Mercruiser 140 barely running and running rough

    I need some help and I'm stumped! Yesterday cruising at 3700 rpm just fine and rev's started to go down like I was running out of gas. I brought it down to 1500 rpm and was able to go 1/2 a mile to a dock. As I approached the dock and brought the throttle back it died. I'm testing this on land...
  7. Alumarine

    Starcraft Identification Help

    Hi there, I need some help from the Starmada in identifying an older Starcraft I needed a trailer and picked up a 75 Shorelander roller/bunk with a boat on top. If it was fiberglass it would be at the dump already. What year/model do you think it is? Too old for a HIN. What's the maximum...
  8. 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...
  9. 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...
  10. 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...
  11. 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
  12. 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...
  13. 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...
  14. 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...
  15. 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...
  16. 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...
  17. 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"...
  18. 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
  19. 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
  20. 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...
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