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    Water jacket corrosion

    I have a 74 - 40hp Mercury. Just had the cowling off and noticed a very small / very slow drop of water coming out from under the lower spark plug while running on ear muffs. Just removed the water jacket cover and see corrosion on the cylinder head where the jacket and gasket fit aroung the...
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    Thanx again!

    Hello again guys, I am the guy who had an old 74-40 horse Merc with multiple problems a couple of months ago. But, thanx to all of you VERY helpful Pro's out there, we are still running great. So, Thanx again to all of you who helped me in my time of need. DMZ.
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    Here's a Quickie >>>>>

    I have an older model troling motor called a: "Travel-Troler" manufactured by a company called "ESKA CO." The model #1787A. Serial #4B-823316. I need a replacement prop. Is a good ole' unit and don't want to discard it just yet. Any Help is greatly appreciated. Thanx in advance. DMZ...
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    Still Stuck in Forward!!!!

    Hello again, folks,<br />Don't mean to be a pain, but I am still stuck in forward with my 74 - 40hp Merc. I have tried every combination of gear changes with the antilock cam,,,shift shaft location,,,and turning the driveshaft while doing all this. Nothing seems to want to go into neutral...
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    Now what happened?? Forward gear only!

    Hello to All of you,<br />Well, to those of you who have kept up with my efforts, I have the lower unit back on. The fuel filter is rebuilt and on. I put the muffs on - fire up - and///// have only forward gear. I have a fantastic flow at the "tell-tale" What happened??? Could something...
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    Merc 40 or 402-what's the difference???

    Hi everyone,<br />Am installing my lower unit and my Clymer manual keeps referencing a 40 / 402. Some settings are critical depending on which. My wrap-around cowl has a 402 on the back, but the smaller cowl arounc the drive-case says 40hp. Am not sure which I do have. Help anybody? Thanx!!!!
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    HELP!..I'm screaming at Lower Unit...40hpMerc.

    Am trying to get the lower unit off of my 40hp 74 Merc. Following the manual, can get the rear to come loose about 1/2 inch but the front seems to be hung on something and won't budge pase 1/8". Do not want to break anything and am wits end...Anybody know what I might be doing wrong? Am going...
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    Help...Prop still stuck....!

    Help, prop is stuck on my 74-40hp Merc. Can I still remove the lower unit to get at the water pump without taking to prop off? Also, please don't tell me I need to cut it off. Am not sure how to do that. :( If I do get into the pump, do I look for a water pump kit or just try to replace...
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    dissassembly puzzle....?

    Hi to all,<br /><br />I"m sure this will be a silly question, but I need to get to some bolts on the powerhead located below the lower cowling of my 74-40hp Merc. Is there a way to remove the lower cowling to get access? Yes, I am new at this, but you guys have been great in putting up with my...
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    Today's puzzler....? 40hp Merc.

    Hello to all....<br /><br />I own a 40hp Merc.,1974. Bought it 2 years ago and have had little to no trouble. Had it out Speck fishing few weeks ago and took off from ramp, up on plane for 5 min or so and the motor dropped RPM ....came back up...dropped again...came back up. I throttled back...
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    Gettin the Prop off....!

    Hello helpfull commrads,<br /><br />I have a 1974 - 40hp merc. Am trying to remove the old worn-out prop, but am having trouble. Do not want to go banging on it. Is there a tool (puller?) out there to use? Current prop # is 48-73136a-4 13p. I have the nut off but nothing wants to budge. The...
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    40 HP MERC. YEAR ? Help - please -

    I recently acquired a 40 hp Mer. but no one can tell me the year. I need to know so I can order the correct repair manual. Outboard Serial is #3864219. I am quessing somewhere in the 1970's. Thanx for any help.
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