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    Torque Rating?

    I have a Merc 170. My question is, do any of you know the torque rating for this motor? I know that if I take the motors Hp times 5252 divided by RPM I get the mathematical number which is 212.58 at 4200 RPM's. Any and all knowledge will be appreciated.
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    Merc 170 B.I.A

    Hey guys just wanted to update everyone and say thanks again for the help.I got my head back from the machine shop and put her all together on Saturday. I ran it to temp and shut it off for the night. This morning I re torqued the head and then ran it a lil while on the muffs. No water in the...
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    Push Rods And Lifters?

    Hey guys been reading a lot of threads pertaining to bent push rods. My Head is at the machine shop getting a crack fixed and the valves reseated. Now, since the head is not being shaved, am I safe to presume that I will be able to just put my Rods back in their same holes, center them on the...
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    Tips Or Tricks Merc 470/170

    Hey guys just wanted to get any firsthand knowledge about putting my "rebuilt" head back on my MCM170/86'. Already have the Sierra Head Gasket kit, plus have had starter rebuilt and heat exchanger"4 In" cleaned at radiator shop. I have the manual downloaded so I know what Mercruiser says to do...
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    Coolant in the oil!!!!

    Hey guys posted once before. 1986 Mercruiser 170 Alpha 1. I replace my impeller and thermostat. Motor was running great and was pumping fine. throttled up a little bit after warming her up heard a pop then a few seconds later i saw white oil coming out the oil breather:mad:. I shut i down and...
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    New member to the 470/170 club

    My father and a friend from work purchased a 1985 SunRunner Sundance/Runabout 19.5 ft. With a 1986 MCM170 Serial#A475274, Alpha One serial #A470443. Owned by an older gentleman and very well taken care of, the hour counter is at 90. Put a battery in got a click,I bridged the solenoid to get it...
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