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    Float bowl weeping milky substance after cleaning

    OK, this is weird. I was in the process of putting my carb back together (1963 Big Twin 40) and I decided that the float bowl didn't look clean enough. I had but it into carb dip then cleaned with carb spray a couple of weeks ago, but it seemed like there was still some discoloration in the...
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    '63 Big Twin low speed needle change?

    I managed to find a "new" low speed needle for my 1963 Big Twin 40 carburetor. That part number according to my parts catalog is 308076. It came in an original OMC package but the shape of the tip is quite different from what was in my carb. The new one (on the bottom in both picture below) is...
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    Big Twin cut-off switch questions

    I have removed, disassembled, and cleaned the cut-off switch from my 1963 Big Twin 40 (40352D). The diaphragm is in very good shaped. I treated it with some rubber rejuvenator fluid that I use on my motorcycle carb diaphragms. Two questions... 1) When I got this motor, neither the wire from the...
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    Water barrel for shop testing

    I thought I'd post this photo of the 55 gallon plastic drum I put together for testing my motors in the garage. There's a 1" PVC ball valve mounted near the bottom of it with adapters so I can connect a garden host to it for draining. I'm wondering about a couple of things, though. First, is...
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    Making your own gaskets?

    I keep a roll of rubber fiber gasket material (for oil, gas, and water) on hand and routinely cut my own gaskets for auto and cycle, especially when buying pre-made gaskets gets costly. Not appropriate for everything, but you can use it for a lot of different applications. Does anyone make...
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    Substitute/replace starter solenoid & junction box ? - Big Twin

    I acquired another Big Twin 40 yesterday. This one is a 40352 (electric start) and seems to run and idle OK. However, the guy would not part with the controls, although I never saw them so I don't even know if they were original. I wasn't aware that the system includes a starter solenoid in a...
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    Difference between Evinrude 40302 & 40352?

    I've got a '63 Big Twin 40 - a 40302-D - and am going to look at a 40352-D tomorrow. (I need parts.) What's the difference? I assume the "5" digit indicates some specific feature.
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    Can you ID this Johnson 40 horse?

    Can anyone give me a ballpark ID on this motor? It's kind of a complicated situation, but I'm going to have to drive a couple of hours to take a look at it. The seller isn't near the motor either, so he can't give me a model number. It is for sale with no controls and the guy doesn't know...
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    Test for leaks by putting water into boat?

    I have a 1960 Crestliner Imp. Flying Crest (aluminum hull) and am in the process of replacing rivets, and trying to fix leaks. The boat is on a pair of very strong stands. I realize it wasn't designed to hold water - certainly not out of the water - but I'm wondering if I can get away with...
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    '60s Johnson Evinrude 40 hp compatibility?

    I'm now searching for either a lower unit for my 1963 Big Twin 40 or a running motor for which mine could be a parts motor. Is there a compatibility list somewhere for which Johnson and Evinrude motors are fully or partly interchangeable? Thanks!
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    Big Twin lower Franken-unit damage

    The lower unit on my '63 Big Twin 40 appears to have been originally from an Evinrude (blue paint underneath), then put onto a Johnson (white paint on top), then eventually onto this Evinrude. It does appear to be a fit, however, and for the most part corresponds to what's in my parts catalog...
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    Big Twin leaf plate reassembly

    I disassembled the leaf plate assembly on my '63 40 hp Big Twin so that I could inspect it and also to remove the old gasket material without the risk of damaging the lp valves. It all seems to be in excellent shape. Valves were very flat against the plate and no corrosion. Two questions...
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    '63 Big Twin carb parts question

    I ordered the Sierra 18-7010 carb kit for my 1963 Big Twin 40hp. On the low speed needle valve, my parts catalog shows 2 packing washers (307583) between 2 washers (306027). Are latter nylon? When I took it apart it had only a single piece of packing between 2 nylon washers. Also, what I think...
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    Servicing choke on 1963 Big Twin

    I'm in the process of cleaning and rebuilding the carburetor on my 1963 Evinrude 40 hp Big Twin. Fortunately, I've been able to locate some new parts that have long been "unavailable." I'm wondering about the choke, however. The manual says to inspect the diaphragm for cracks, but can you even...
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    Big Twin 40hp missing locking lever mechansim

    Well, I finally started in working on this old motor today. I have a 1963 Big Twin 40 horse and I figured I'd start with the carburetor. However, in the first phase of disassembly I realized that the entire locking lever mechanism is missing. How important is this? Should I try to find one...
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    Correct oil and lube for 1963 40hp Big Twin

    I've been searching the forum for awhile trying to find what type of motor oil and gear lube I should use with this outboard. I don't have an owner's manual, although I guess that wouldn't list currently available products. Also, I've read a couple of threads about whether or not to mix at 24:1...
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    Cracks in aluminum hull braces

    Re: Cracks in aluminum hull braces Looks like I've managed to make it worse. After spot brazing the first brace in the floor with the HTS-2000, I found that the brace had actually contracted from the heat and pulled away from the hull. The gap is over 3/16" in one spot. Unbelievable... The...
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    Cracks in aluminum hull braces

    I'm trying to decide how to repair some cracks in the hull braces on my CL 1960 Flying Crest. These braces are below the front console under a small section of decking where the feet of the driver and front passengers would rest. The first image is a close-up and the arrows indicate the cracks...
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    Gluvit or 5200 for sealing rivets & seams in aluminum hull?

    Re: Gluvit or 5200 for sealing rivets & seams in aluminum hull? Here are the pics I said I would post. It is a 1960 Imperial Flying Crest, as far as I can tell. My dad and grandpa sold Crestliner and Johnson/Evinrude on a very small scale out of our appliance store back in the 50s and 60s. This...
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    Gluvit or 5200 for sealing rivets & seams in aluminum hull?

    I've begun removing loose original rivets and replacement pop rivets in my 1960 Crestliner Flying Crest. I'm going to hand buck in new solid rivets in most spots and maybe use a few screws to pull things together in a couple of places. After doing extensive reading in this forum and elsewhere...
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