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    Need a source for a lower unit spanner nut. (Pre-alpha)

    I'm getting water in lower unit of a MC-1/pre-alpha. I used the correct tool but ended up breaking off several of the "ears". Now I need to find a replacement part. Preferably ASAP. My issue is I can't seem to locate or identify a current part number. 528340 is stamped on the edge if that helps.
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    What type of prop shaft seal is this?

    I'm thinking Stren! Lol
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    How do I get this part off?

    Boat is getting a makeover but I need to remove this plate fro. Behind the throttle/shifter! I FINALLY got all 3 screw out, now this black plate won't budge. Any suggestions?
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    Charging system on 74 3.0L Merc.

    I bought a 1974 Ranger bass boat with a 3.0L 4 cyl, inboard/outboard. Pretty unique boat. I was finally able to cobble together the wiring and get it running. But Im not sure about the charging system. The wires coming from the battery are a simple red (going to straight to the starter) and a...
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    Name that wire (1974 3.0L)

    I'm redoing all the wiring and building a new dash. The large gauge Orange wire has never been hooked up. It goes into the large connector near the engine and doesn't come out. Any ideas?
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    Pre-alpha/merc1 ourdrive pressure test.

    I'm losing gear oil and its being replaced with water. Not good. I have a gasket and o-ring kit on the way. Can I pressure test this like its an Alpha outdrive? I can only find tutorials on the alphas and not the older outdrive. Thanks for any help.
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    Need '74 3.0L replacement gauges.

    Im in the middle of refurbing my 1974 Ranger bass boat with the 3.0L. The previous owner basically gutted the console. Anyway, where would be a good source to find replacement gauges and can I use more modern ones or am I stuck in the 70's? Thanks for any info. (Basically needing, temp, RPM...
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    At a loss. Merc-1 tilt hydraulic line

    I have a Merc-1 (pre-alpha) outdrive. I blew the tilt hydraulic line yesterday and everywhere I've searched comes up with different part numbers and lengths. It's 3903838 sn. The line going into the distribution block under the drive is what I need. Any help or sources would be greatly appreciated.
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    Thanks to everyone here. It runs

    So I bought a 1974 Ranger bass boat with a 140ho I/O. Yep an I/O in a bass boat. Well, I knew it was going to be a project and the only issue was "Needs an ignition switch!" Lol, that was the least of my worries. Anyway, I started at the ignition switch and started working backwards. A few weeks...
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    Stern drive identification help.

    Yes, I looked in the Adults Only section. It wants me to download the document and I cant do that on this computer. Every other site gives me a year range but no name. I think it is a 1974 model, Tag says Mercruiser SN 3903836. Im bringing this old Ranger bass boat back to life. Waiting on a...
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    I/O Ranger bass boat ignition help.

    I just picked up a "running" (if it had a key) 1974 Ranger Bass boat with an 140hp inboard/outboard. I swapped out the ignition and nothing worked, no clicks, nothing. So I am assuming there are other issues. My problem is I cant find any type of decent wiring diagrams. Anyone here know of a way...
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    Swapping out different year model engine blocks

    I have a 1977 351W that is believed to have a cracked block. (still waiting on the mechanic to look at it) However I have found a good running 1985 351W out of a vehicle. If I understand correctly the block and heads are the same (marine vs land) but the cam will be different. Does anyone know...
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    OMC 235 ????'s

    Just picked up a 1977 Sea Ray. The boat is in pretty good condition but the engine may need some work. Slight milky oil. Is this a 351w engine? From my research it is a stringer but the out drive does not look like one. I will try to post out drive pics soon. If the block is good are parts...
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    Prop replacement 57' 35hp?

    Im wanting to try a few different pitches to see if I can improve the performance some. On newer motors I know I can switch the props but is there anything specific about my old 57 javelin that I need to look for? Thanks
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    Quick '57 Javelin question. (lower unit)

    '57 Javelin that just came back from the shop. I noticed a slow LU oil leak. What would happen if I remove the screws holding the very bottom of the lower unit? Can this peice be removed and reinstalled without fear of things falling out? Im not too sure what Im getting my self into.
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    1957 35hp Javelin

    I bought the boat three years ago, first year was spent refinishing and cleaning the mess the previous owner did to it. Second year it sat idle while I was recovering from a back surgery. This year the motor went in the shop and came out with all new bearings, seals, water pump and carbs tuned...
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    1957 javelin's 35hp worth?

    Hopefully I will have a youtube video up by the end of the week of the motor running. It fires up withing the first few cranks, Electric start. purrs like a kitten and even outran a new 40hp yamaha on similar sized aluminum boat. Im curious to what people think I can sell the motor for. Emblems...
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    1957 35hp Johnson wont turn over.....

    Ok, I have a 1957 electric start javelin 35hp, ran fine last year. I removed the motor and placed it in the garage over winter. painted and fixed up the boat. Finally I was able to put the motor back on the boat, wired it back together and it wont turn over. The starter will engage the fly wheel...
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    Rustoleum paint

    Sorry to be a pain, but I'm standing in my local lowes and notice they have rustoleum topside paint for a quarter the price is interlux. Anyword on the quality and ease of application of rusto over interlux brightside? Also even though it says "above the water line" can it be applied under it...
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    Prepping for paint....

    What grit of sand paper do I need to rough up my boat? Its a fiberglass Kingfisher. Im buying all the material this weekend to fix and repaint the hull but Im curious to how rough I need the surface prior to primer? thanks.
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