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  1. 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...
  2. 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...
  3. 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...
  4. 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...
  5. 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"...
  6. 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
  7. 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
  8. 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...
  9. 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...
  10. Alumarine

    Broken Oil Pump Support 3 liter

    Hi there. Just removed the oil pan on my mercruiser 3 liter and noticed the Oil Pump Support is broken. Is there a common reason it would break or is it just a fluke? The pipe is tight. Is that bracket even needed? I noticed that part is NLA. Is there a chevy equivalent for that part? thanks
  11. Alumarine

    Need Help adjusting idle Mercruiser 140

    Hi there. The idle is to high on my 1980 Mercruiser 140 serial 5668920. It varies between 800 and 1000. I've adjusted what I think is the idle adjust screw. If I back it off AND push on it a bit the idle will drop. Next time I come back to idle though it will still be too high unless I push on...
  12. Alumarine

    Honda BF75 -1981 leaky carb

    Hi there. I'm trying to diagnose a no start/poor start problem with my 1981 Honda BF75. When I pump the bulb I get fuel leaking out of the port circled in red. Is that normal? I did get it running for about 10 seconds. I did tear down the carb to clean it. But may not have done it properly. thanks
  13. Alumarine

    Mercury fifty classic 2 stroke losing power also need help with set up carburetor

    Hi speedy and welcome. You should start a thread of your own for best results. Try pumping the bulb when it starts to stall. If that helps you need to rebuild the fuel pump.
  14. Alumarine

    Power Trim Wiring Issues

    Have a bit of a wiring problem with my Power Trim It's been "modified" quite a bit. It currently has a single solenoid system with BOTH a dash trim/trailer switch as well as a trim switch in the throttle. The trim limit has been bypassed somewhere. I only used it twice after picking it up late...
  15. Alumarine

    Extra Hole in Drive Housing Gasket MC-1

    Hi there. Just put my MC-1 drive back on and noticed an extra hole in the gasket. Did I put it on wrong or does it also work with a newer drive maybe for the lube monitor? Did I use the wrong gasket? thanks
  16. Alumarine

    Bell Housing Bumper MC-1 drive

    Hi there. Getting ready to put my drive back together and noticed that I'm missing the Bell Housing Bumper merc part # 63679. It's NLA. It attaches to the lower part of the bell housing and acts as a bumper stop I think between the bell housing and gimbal ring. I suspect there's a lot of...
  17. Alumarine

    18 ft. 4 cyl. Mercruiser I/O Shift Cable Routing

    If this would be better off in the Mercruiser forum, please move it mods. I forgot to take pictures of the path my lower shift cable takes. I know it goes through the transom plate towards the port side and then back but don't know the exact route. Does anyone have pictures of theirs? Or...
  18. Alumarine

    Possible problem with 140 3.0l Exhaust Riser

    I have a question regarding the Exhaust Riser from my 1980 140 3.0l. It's raw water cooled. I took it off to check the water shutter and decided to compare it to one I had lying around. In the picture my Riser is the lower one and it doesn't have the round insert thing in it like the upper one...
  19. Alumarine

    Another what year is my BF75 question

    I'm trying to determine what year and/or serial number range my BF75 long shaft is. I need to order some maintenance items. It has CDI and I can't read the serial number. Here's some pictures. Thanks.
  20. Alumarine

    Anyone put bellows on Dry?

    I stopped by my merc shop the other day to pick up some genuine merc Bellows Adhesive as I read here that the Sierra might be lacking. They said the didn't stock it but could bring it in for me. I asked what they used and was told they put them on Dry. I've never heard of this. Is this...
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