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  1. M

    Replaced outdrive Mercruiser alpha one gen one stalls going into reverse

    Hi Guys - hoping for some input - I have a 79 thundercraft with a 228 mercruiser i/o engine -I just I swapped the old mc-1 outdrive (lost the gears) for a rebuilt alpha 1 gen 1. My old outdrive had 14.5" 17pitch prop - the alpha one has a 15.5" 18" pitch prop. The boat starts & runs fine -...
  2. M

    Do I need to worry about gear pieces in my Mc-1 lower ??? - I'm mating it to an alpha 1 upper

    Lost my upper gear set in my mc-1 outdrive last year at the end of season - low oil. The top gears were shredded. I've found an alpha 1 g1 upper. I'd like to take my lower half of mc-1 and mate it to the a1g1 upper (it's the right ratio for the boat)- but do I have to worry about shredded...
  3. M

    Are Merc Mc-1 and Alpha 1 Gen 1 interchangeable ??

    Long story short - I have a 1979 thundercraft with a 305 merc and mc-1 outdrive. Outdrive lost it's top gears late this year - so I need to put on another drive. I've decided to find a complete unit upper & lower. (I'm in Ontario Canada) I've considered going to Luken - 1750 cdn + tx for a...
  4. M

    Varnishing an oak swim platform - need advice please

    Made a new swim platform from some oak last year - coated it with multiple coates of interlux schooner gold - problem is that the varnish soaks into the open grain in some spots- and I mean really soaks in - and the water has caused some minor black spotting - I'm thinking of putting a real...
  5. M

    Windshield leaking 1979 Thundercraft magnum 230

    Hoping someone can help me out or point me in the right direction. My thundercraft 230 front windshield leaks where the two meet at an angle - right at the bottom point on the dash (center of the boat). Leaks quite bad. I've tried to reseal the windshield with silicone with no luck. I'm...
  6. M

    Help with Alternator & battery charging on a 1979 Mercruiser 228 engine

    Hi - This is a bit of a long read - but I'm posting the entire story here so anyone who can help me out understands what I'm trying to do. I changed marinas this year - previously docked my Magnum 230 thundercraft at a marina that had shore power - it was nice as 5 or 6 times during the summer...
  7. M

    Engine wiring 1979 228 Mercruiser ??

    Hi Guys - hoping someone can help me - I'd like to upgrade to a higher amperage alternator - but want to check out the engine wiring for my merc beforehand - and am looking for the schematics - I've looked in the stickies with no success - maybe I'm missing something - and my seloc manual gives...
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