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  1. 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
  2. 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...
  3. 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
  4. 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.
  5. 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...
  6. 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
  7. 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...
  8. 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...
  9. 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...
  10. 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.
  11. 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...
  12. Alumarine

    Need help buying a used 6hp-8hp kicker

    Hi there. Looking to buy a used Johnson/Evinrude 6hp to 8hp, manual start, to use as a kicker for my Sylvan. I like the size and weight of some I've seen. I'm guessing my budget will mean I will be looking at something in the 80's or 90's. I don't know anything about these motors but my primary...
  13. Alumarine

    MCM 140 Yoke replacement

    If I replace the Yoke Assembly is there a shimming procedure? I'm trying to decide whether to use a speedi-sleeve or just replace the yoke. Also trying to not buy any more tools as my budget is slim. thanks
  14. Alumarine

    MCM 140/#1 Drive Yoke Seal Replacement

    Just want to verify that the only special tool that I need to replace the Yoke seal in my 1982 140 #1 drive is the Retainer Bearing Spanner Wrench. I was going to order one if it's the kind of job I can do myself. I have the manual and it seems straightforward but I could be missing something...
  15. Alumarine

    Water Pocket Cover Gasket leak MCM 140 upper

    Hi there. I have a slight leak in the water pocket cover gasket. I thought I'd check to see if the Water Pocket Cover was leaking. The cover does not look melted in any way. I followed the instructions that achris mentioned in a previous post "Remove the drive and separate the 2 halves. Rig up...
  16. Alumarine

    1980 Sylvan (Starcraft) 18ft SS, 140hp IO prop comparison question

    Hi there, I have a 1980 Sylvan (StarCraft wannabee:)) 18ft. SS open bow 140hp Mercruiser IO, I think it weighs between 1800 and 2000 pounds (not sure). This is new to me and I only had a chance to make two 25 mile runs before freeze up. I will just use it for cruising but I would prefer speed...
  17. Alumarine

    identifying plastic ring in front of prop 150 4stroke

    I was seeing if one of my old aluminum props could be used as a spare on a friends 2012 Mercury 150hp 4-stroke. It has a plastic ring that has 3 tabs and fits into the bearing carrier nut and seems to fill in the gap at the front of the prop. My spare aluminum prop seems to rub a bit too much on...
  18. Alumarine

    #1 upper with Alpha lower waterpump question

    Hi there. I have a 1980 #1 Drive serial 565xxx. I split the upper from the lower to change the water pump and it didn't make any sense to me. I think that the upper is a #1 drive and the lower must be an Alpha. The upper has the 565xxx serial number on it and the lifting ring on the top cover...
  19. Alumarine

    #1 Drive Shaft Housing Question

    Hi there. I have a 1980 #1 Drive serial 565xxxx and have a question about something on the starboard side. I'm in the process of cleaning it up for painting and on the port side there something that feels like it's covered in silicone seal. I can't find it shown on any parts sight or in my...
  20. Alumarine

    1980 Sylvan 18' Sportster Kicker Question

    You guys were so friendly I thought I'd ask my first question. I boat in some very remote areas and will definitely need a kicker. I thought I would look over the winter for a good deal on a 6hp. Trouble is I don't know if I need a long or short shaft. Here's a couple of pictures of my transom...
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