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  1. Alumarine

    Sylvan 1980 18' Sportster IO

    Hi there. I picked up a Sylvan 1980 18' Sportster IO in October and was hoping I could hang out in the StarCraft forum and get some advice on a bunch of work I will have to do? The Sylvan forum is a bit slow. There hasn't been any new posts there since October. I've already seen some great...
  2. Alumarine

    Is ice in the bellows bad?

    I'm guessing it is;). Went down to -8C or 17F last night for about 10 hours. My block and manifold were drained so they're ok. And there's no water in the lower end. Was putting the boat into storage so pulled the drive and found a bit of ice. Will be replacing the bellows and gimble bearing...
  3. Alumarine

    Takes a long time for oil to drain back to oil pan 140hp

    Just picked up a 1980 Sylvan 18' aluminum with a mercuiser 140hp serial 566xxxx. Last week I changed the oil and filter (short filter) and put in 3.8 liters (approx 4 us quarts). I checked it after 5 minutes and it was low. I checked it an hour later and it was at the full mark. Today I ran it...
  4. Alumarine

    New to me Sylvan 18ft. IO

    Hi there. Just joined the Sylvan club and was hoping someone could provide me with some info on this boat. I think it's a 1980. The last 3 digits of the HIN are 800. It's 18ft long and seems to be 81" wide. It is open bow. It has a mercruiser 140 stern drive. I'm having trouble reading the ID...
  5. Alumarine

    Mercruiser 140 Exhaust Riser Drain Plug

    Hi there. Just picked up a new to me 1980 Sylvan with a Mercruiser 140 in it. It's starting to get cold here at night so I'll be draining it after every use. The Exhaust Riser drain plug is missing and replaced with a bolt. The manifold plug and block petcock are fine though. I don't want to...
  6. Alumarine

    NGK YR5 or BR6FS for 140hp 1980

    Just picked up a 1980 Sylvan with a 140hp mercruiser serial no. 566xxxx. I thought the plugs for it were BR6FS but the NGK site lists the YR5 as the plug. Is this correct? If so, what is the difference? I've sent an email to NGK but haven't heard back. thanks
  7. Alumarine

    Humminbird 597 CI HD DI transducer cable design flaw!

    Re: Humminbird 597 CI HD DI transducer cable design flaw! I didn't make myself very clear. I removed my cables from the quick release mount and just plug them in to the unit. There's someone with the same username as you on the CGNutz forum.
  8. Alumarine

    How to replace shift interrupt switch?

    Re: How to replace shift interrupt switch? I don't know if this will help but this is what mine looks like.
  9. Alumarine

    Where do I add power trim fluid??

    Re: Where do I add power trim fluid?? Here's your modified picture. The red circle is the vent. The screw should be open slightly. The green circle is the fill. Fill to that level. If what's in there now looks like motor oil put 10W-30 oil there. If it's red put Dexron auto trans fluid. ps...
  10. Alumarine

    missing points

    Re: missing points Here's some pics from my 1974 era 3.0. Oh, and welcome.
  11. Alumarine

    I tried to pull outdrive without putting it in forward gear. What got damaged?

    Re: I tried to pull outdrive without putting it in forward gear. What got damaged? This is what I bent on mine when I did the same thing (I didn't have help). I was lucky, I could straighten the bent tabs.
  12. Alumarine

    Adding 2cnd bilge pump y connector

    Hello. I'm adding a 2cnd automatic bilge pump to my boat that stays in the water from spring to fall. Was wondering if I can use a Y adapter or T to plumb the 2cnd pump into the drain hose of the 1st pump thanks
  13. Alumarine

    Does 40hp 4stroke EFI have a rev limiter

    Hi there. A neighbor with a Merc 40hp 4 stroke EFI is having trouble getting his boat to plane. It takes too long. We're going to try different props. He doesn't have a tach and I don't want to over rev it. Does this motor have a rev limiter. I'm assuming it should as it's EFI but don't want...
  14. Alumarine

    01 Johnson 25hp mystery connector

    Hi there. Just had a new head gasket installed in a friend's 2001 25hp. I noticed that there is a connector hanging behind the CDI module that I don't think was just hanging there before. Should this connector be attached more securely somewhere. Also what is the connector for - I know it...
  15. Alumarine

    77 Century Cortez 270 Capacities

    Hi there. I posted this in the Century forum but it doesn't get much activity. My friend has a 77 Century Cortez 270 and the capacity plate is unreadable. Does anyone know what the maximum persons and maximum weight would be? thanks
  16. Alumarine

    78 century 270 cortez capacities

    Hi there. my friend has a 77 Century Cortez 270 and the capacity plate is unreadable. Does anyone know what the maximum persons and maximum weight would be? thanks
  17. Alumarine

    johnson 25hp not peeing

    Hi there. Just borrowed a friends boat with a 2001 25hp 2cyl 2 stroke Johnson. Was running it on muffs and I'm not getting any water out the tell tale. The block seems hot to to touch after a minute of running. It's not the hose. I'm hoping they don't pee on muffs but that's probably not it...
  18. Alumarine

    shift interrupt adjustment mercruiser 140

    Hi there. Just towed my 74 Mercruiser 140 - 100 miles from the mechanics to the lake. Had new bellows, shift cable and gimble bearing installed. The adjustment on the shift interrupt is no good. In and out of forward is fine. It stalls the engine momentarily just as I take it out of forward...
  19. Alumarine

    Stainless or regular Plated bolts to mount outboard.

    Hi there. I just had a new transom installed on my aluminum boat. It's 1.5" of wood attached to the aluminum back. I was wondering if I should use Stainless bolts or regular Plated bolts to mount my Merc 50. I've heard that there might be a reaction between the stainless and the aluminum. thanks
  20. Alumarine

    What causes gear oil to turn black?

    Drained the gear oil on my Merc 50 today and it came out totally black. It was full I know that. I thought I changed it last year but maybe not. Even if I didn't it would only have about 20 hours on it. What causes gear oil to turn black?
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