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  1. J

    Can I do a compression check on a motor if the lowe unit is not bolted on?

    Just wondering if I can do a compression test on a 1975 evinrude 40hp model 40555C while I have the lower unit off. I can't see any harm in it myself, but thought I would ask the pros. I want to know if the motor has good compression before I buy the water pump kit for no reason. You see, I...
  2. J

    cant find impellor for my evinrude 40 hp

    I cannot find the proper impellor for a 1975 40hp model number 40555C. I can find them for older models and newer ones, but not for this one.
  3. J

    where can I find good drawings of evinrude motors

    I need detailed drawings for my 75 40hp rude. I have the online version of the seloc manual but I dont find the pictures i want. I want to replace the impellor but I don't know how to get the lower unit off. I unscrewed the six bolts, but aparently that isn't enough. i know there is a shift...
  4. J

    I can't find evinrud part number

    I think I need a thermostat for my 75 evinrude 40hp. It is a model 40555C. I looked on iboats and they don't show a 40hp for that year. I am stumped. By the way I bought one of those seloc online manuals for the motor and I don't find it in ther eithher.
  5. J

    pee hole/impellor/thermostat question

    Got my 75 40 hp evinrude running after istalling a carb kit. It runs good, but it tool like 10 seconds before any water came out the pee hole. I let it run for less than a minute and felt the water coming out of the hole and it was hot, about like hot dishwater, for those old enought to...
  6. J

    75 evinrude carb and pee hole question

    I am working on a 75 40hp evinrude. I took the carb off and gave it a good cleaning, but didn't install a kit because the marina that told me they had one didn't, but the mechanic looked it over and said just to put it back together try it. Well I tried it and it is getting flooded really bad...
  7. J

    help with wiring/key switch/starter wont engage

    I have a 75 40hp evinrude that I just got. I cleaned the carb and now I want to start it, but I am having some trouble. The wires are all hooked up but I hit the key switch and nothing happens. The electric choke does work and I have 12 volts at the line side of the solenoid. Is there two...
  8. J

    help determining the right carb kit

    Can someone tell me which carb kit I will need to rebuild a 1975 evinrude 40hp. The model number is 40555c, I want a kit that includes a float, as that is the main reason I want a kit since my float is quark and I want a plastic one.
  9. J

    can i put a long shaft engine on a transom made for a short shaft

    I found a motor I want for my boat but it is a long shaft and my boat is set up for a short shaft. I talked to the man at the marina and he told me it will be just fine putting a long shaft engine on a short transom. Is that true? It is a 75 evinrude 40hp with electric start, but it can be...
  10. J

    1958 merc 58a not cooling properly

    Well, today I totally tore apart a parts motor just for practice before I tear into the good motor. My impellor is good, but I am still not cooling properly, so I thought I would remove the powerhead and look at the gasket there and also look over the hole where water is supposed to enter the...
  11. J

    1975 evinrude 40 hp Is it a long and short shaft?

    I was looking at buying a 75 evinrude 40 hp, when I went to look at it I realized that it was a long shaft. I have heard about some motors that had a section you could remove to make it a short shaft. Could this be one of them? If so, is it hard to convert. Is there a drive shaft link, or do...
  12. J

    having trouble identifying what year my mariner is

    I have looked at several web pages and still cant find what year my mariner is. It is a 40 hp. The model I believe is 40BM, and the number on it is 676 BSooo449 and it was made in Japan. Any help would be nice, Thanks!
  13. J

    mercury kiekhaefer mark58a not cooling properly

    I don't thing my 45 horse merc is cooling properly, but I don't know much about how it is supposed to work. The impellor looks fine. Water comes out the pee/exhause hole near the top back of the motor, but it just spits out water, is that all it is supposed to do? It is almost a real heavy...
  14. J

    Help! How to get into a merc lower unit?

    I have been working on a merc 1958 58a (45 hp) and the lower unit is leaking. I have had it off many times messing with the impellor and such, but I think I want to replace all of the lower unit seals. The problem is I have the prop off and big screw looking thing that is behind the prop, but...
  15. J

    Will STP cure lower unit leak?

    I was told by a man at the local marina that if I mix 1/2 STP oil treatment and 1/2 lower unit oil and put it in, that it will usually cure any small leaks that the lower unit may have. Has anyone heard of this? Does anyone else have any "cures" that I might try before tearing into all of the...
  16. J

    carb settings for a 40 hp mariner

    I need to know the proper way to adjust my carb on my 40 hp mariner. It is probably an 80's motor, I don't know the exact model off the top of my head. It is a 2 cylinder, 2 stroke. I have had it for 2 years and the first thing I did when I got it was clean the carb. I tried it and it seemed...
  17. J

    how much oil?

    How much oil should I mix in a 1958 merc 58a (45hp)? I have read a couple of pages on people's opinions, but they have all been for 1960 and up. Mine is a 1958. I just got it running and have used about 3 gallons of 50:1, should I be doing something different?
  18. J

    mid 70's 25 hp carb tuning

    how do I fine tune the carb on a mid 70's evinrude 25 hp. I am selling it and I just want to make sure it is running good. There is a lean/rich knob, but is that the only adjustment on this model. Are there any other screws to adjust? If the rich/lean knob is the only adjustment what is the...
  19. J

    how much should I pay

    I got a guy that wants to sell me a late 70's 40hp evinrude with only like 40 hours on it. What would be a ballpark figure on it?
  20. J

    how hot is too hot?

    Well guys, I got the kiekahefer 58a back on the water today with the new timing belt and a different lower unit. The engine was spitting out some water like it should, but how much water should it spit out and how hot should the engine get? I could touch the top of the block, but I couldn't...
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