1971 Mercury 80 HP WOT

[maryalbert]

Does anyone know the WOT for this engine. It is on a 1962 Glasspar Tacoma 200 16'.

 

[WillyBWright]

Re: 1971 Mercury 80 HP WOT

Welcome to iboats.<br /><br />That motor should twist up to 5500 rpms officially, but can handle 6000 if it's healthy. A motor that old I wouldn't bet on that. Speed? Might sneak into the lower 40s, but upper 30s should be easy.

 

[maryalbert]

Re: 1971 Mercury 80 HP WOT

Thanks, now one more question... The pitch on the current prop is 15, it is chipped up pretty good. Is a 15 good or can I do better when I change it out?

 

[walleyehed]

Re: 1971 Mercury 80 HP WOT

As willy said, you want atleast 5500RPM....if your 15P allows that RPM, then that is the correct prop.<br />What is your WOT RPM now?

 

[maryalbert]

Re: 1971 Mercury 80 HP WOT

just bought it and am still fixing it up havnt even had it in the water yet. Just got done rebuilding carb and decarbing engine. My last boat had chevy engine ib/ob. Outboards are still new to me.

 

[walleyehed]

Re: 1971 Mercury 80 HP WOT

Good deal... keep us posted on your progress.<br />If you don't have a tach, get one....it's the most important instrument you can have. If you have a marina or dealer close by, see if they will let you test a couple of props (most will let you)then buy the proper one for the 5500 mark.<br />If any fine-tuning is needed after that, willy is like dirt in a corner....it's always here <br />He can assist with lots a problems, and has "Black Max" on his mailbox....