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  1. F

    1973 4hp Evinrude

    well, kind of - but not into all the details. I'm not sure how to check/ajust the timing. I check the electrical, point gap, connections, looked it over, I did file and clean the points a little, just as a touch up since I was in there. Looked good to me, make a bright blue spark on each...
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    1973 4hp Evinrude

    seems to pump water fine. let it run for a good while poor idle and hard starting. seems to run strong enough once started, but I tried another carb on it and it was similar, maybe a bit better, but similar. neither carbs low speed adjustment seemed to do very much and I could close the...
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    1973 4hp Evinrude

    cleaned it up and put it back together again. was more judicious with the sealant, so it didn't squeeze gobs everywhere. we'll see. the IR gun is a good idea if it starts pumping water, think I have one somewhere. when I put the lower unit back in, I'll give it a go again. yea, I dunno what...
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    1973 4hp Evinrude

    it would have worked, but I managed to plug the outlet to the water tube with the sealant. It was just plugged in there solid, like if I tried to plug it on purpose I could not have done that well. guess I need to use less and follow the directions better. I'll try it again, I did order a new...
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    1973 4hp Evinrude

    no, I put the existing one back in and ordered a spare. The exisitng one seemed totally fine. I thought I got one, but ordered the wrong part, so for testing this one is good enough. it seemed to pump water yesterday and then suck the sealer out of the water pump, and started sucking air...
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    1973 4hp Evinrude

    ummm. does this more expensive set up pump any better? the incredible simplicity of that pump as is- is impressive, but I find the irony of a 4hp that overheats, and has overheated probably a lot, has a 2hp water pump. Sounds like a mistake, but maybe it works good. I still don't get the...
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    1973 4hp Evinrude

    nice tip. this motor has been tricky too, cuase it doesn't want to idle down, so it just shoots the water out of the bucket. I added a board on top to splash the wave, but I think I gotta lift my tank up a good 6 inches and get the motor all the way down in. I got a set of muffs, but it fits...
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    1973 4hp Evinrude

    put parts in. got it started. seemed to pump water for a few seconds then quit pumping. I didn't let the sealant cure, so I think it sucked the seal right out and then started sucking air. I took the lower end off and spun the shaft with the bottom in a bucket, and pretty quickly it was for...
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    Johnson/Evinrude 4hp 71 and 73 parts swappability

    how hard is it to replace the steering bushings. seems like that assembly comes apart with 4 bolts. I wiggled the lower unit and the exhaust housing moves back and forth a good 1/4" give or take. I'm hoping that's just those bushings. If I can get it to run I'll probably want to replace or...
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    Johnson/Evinrude 4hp 71 and 73 parts swappability

    watching someone else do it is priceless. learn from other mistakes. I did have some luck with an eco friendly citrus based paint stripper I found in my basement. I'll mess with it more tomorrow and maybe I don't need to swap anything, which would be ideal. I'm not a purist, but original...
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    Johnson/Evinrude 4hp 71 and 73 parts swappability

    this guy did a good video of the power head, I thought so anyways never having thought of taking these things apart that much before looks like the parts numbers line up far as I can tell, the swivel brackets are the same, so I guess the whole exhaust housing would come with the lower unit, and...
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    Johnson/Evinrude 4hp 71 and 73 parts swappability

    I have some seals and gaskets coming for the Evinrude 73 4hp, and i think it will probably run fine. The PO or someone painted it like some odd green color, I think to make it look like Johnson a bit, or maybe duck hunting color. Anyway, it doesn't look great, and there is the 71 4hp Johnson...
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    pressure test lower end adapter

    this is my plan now. I started trying to find just the adapter, but had no idea what it was called, and never really used a hand pump, but one time. good I have you guys around to point me in the right direction, I was way off ... lol
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    pressure test lower end adapter

    lower unit adapter just went with a pump that comes with the metal fitting I was looking for. price for the fitting and a pump with several fittings the same, so - got another little pump with a metal fitting like I was looking for. will it work for pressure testing, we'll see. I'm not doing...
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    Need advice on 1989 4 HP Johnson

    less is more
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    pressure test lower end adapter

    NPT is 3/8-18 I believe, so no go there. At this point I think I'll just buy another lower unit pump, for the fitting, and go from there.
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    pressure test lower end adapter

    never used it on this motor, only a merc - but I had an old bottle of gear oil with the pump, and the plug fitting on it screws into this lower end fine. it shouldn't be that hard to find a little brass fitting the same size, with a barbed end for a standard bicyle pump size barb 1/4" maybe...
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    pressure test lower end adapter

    will a 3/8" NTP male pipe adapter, fit the drain plug threads? this is what I ordered with a 3/8" barb on the other end, and it isn't even close. both ends are way too big, not sure if I'm lost on this, or they send me the wrong part.
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    pressure test lower end adapter

    I bought a little adapter with what I thought might be a 3/8-16 thread, which is what I think the drain plug is. I planned to just use a decent bicycle pump, and use the fitting to connect directly to an extention hose, and make a little adapter, to the standard I think 1/4" hose on any bicycle...
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    1973 4hp Evinrude

    I have parts coming, so I'll see how it works and if I can get the motor to work. Might be a good idea next time I do the pump on it. I haven't found anything too out of the ordinary on this, other than the reminder that getting old exhaust gasket off the plate and motor is kind of a hassle...
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