(NEW) info on 1973 20hp Mercury

[ryanc]

Hello again. Well my mechine didn't touch the motor, if yall read my other post ... So i tore the motor apart my self. I inspected the splines on the end of the drive shaft and the splines on the bottom of the power head. They both are in great shape.<br /><br /> Now he say it's the main bearings of the motor that are bad. Can i get to them now that i have the upper and lower sections of the motor apart? Another question i have is can i get bearings and gears for a 1973 mercury 20hp? If so where and how much are they ?...Gears for the upper sections that is.. Any other help would be greatful Thanks RCobb

 

[bob58]

Re: (NEW) info on 1973 20hp Mercury

A manual will help with your repair. Click<br />"Marine Mega Mall" at the top of the page.<br /><br />Might try mercurypartsexpress.com for oem parts availability if IBoats mall doesn't carry them!

 

[ryanc]

Re: (NEW) info on 1973 20hp Mercury

Thanks for your reply still--learning i will look into a manual. I hope i can still get parts for the motor though? I will update you as neccessary. Thanks again RCobb

 

[WillyBWright]

Re: (NEW) info on 1973 20hp Mercury

I just did that for a customer last season. Parts are still available.

 

[ryanc]

Re: (NEW) info on 1973 20hp Mercury

Thanks Willie for your post. I sure would like to know where i can order those bearings. What is the price on them? I also plan to install them myself..is this a good investment or should i junk the motor? <br /> Thanks in advance RCobb

 

[rickdb1boat]

Re: (NEW) info on 1973 20hp Mercury

Try here instead:<br /><br /> mercruiserparts.

 

[ryanc]

Re: (NEW) info on 1973 20hp Mercury

thanks rick for that page . It looks like it will be very helpfull. But is this a wise investment to repair? RCOBB

 

[andrewkafp]

Re: (NEW) info on 1973 20hp Mercury

Used to have that page Rick... Lost it .. Now found it again.. Thnx

 

[Mark.24]

Re: (NEW) info on 1973 20hp Mercury

Similarly try http://www.dougrussell.com to price compare . Use the button on the left hand side labelled browse under Parts Search. <br /><br />You shouldn't have to much of a problem<br /><br />Good luck Ryan

 

[Chinewalker]

Re: (NEW) info on 1973 20hp Mercury

Roller & ball bearings, and seals can be had at a local bearing supply house (Kaman is the one in my area). Take your old bearings with you and they can match them up. The rod needles can be gotten at a Merc dealership. None of the bearings in that powerhead are very expensive...<br /><br />- Scott

 

[ryanc]

Re: (NEW) info on 1973 20hp Mercury

Thanks for your replies and info, need to get myself a manual, taking it apart is so---easy, but putting it back together oh ----boy. thanks again

 

[ryanc]

Re: (NEW) info on 1973 20hp Mercury

Well ordered a manual last night at a place on the web. Got a Clymer Mercury outboard repair manual 3.5-40hp 72'-89'. My motor falls in the hp and year. I wonder if i'll need any special tool to take the bearings out with, or should they slide right out? Any way i should recieve the manual Monday afternoon(who really needs with the mail!). Will keep yall posted on this project! Thanks RCobb

 

[ryanc]

Re: (NEW) info on 1973 20hp Mercury

Well got manual on Monday. To pull flywheel, the manual says to use a strap wrench and 1/2'' socket wrench to get flywheel nut off. I bought a strap wrench and have the socket size and wrench. <br /><br /> The nut will not even move. I can't get it off at all. Even with the tools that the manual says i need, i have and they don't work? What do i do now? Rcobb

 

[Clams Canino]

Re: (NEW) info on 1973 20hp Mercury

Eat more wheaties. <br /><br />Seriously, if you can, have a friend hold the flywheel still with the strap-wrench while you crank on the nut.<br /><br />Make sure you're turning it the right way, and that you have a long enough bar to get the leverage you need on it. <br /><br />If it's that bad make sure you have a 6 point socket on it to avoid rounding it off under hi-torque.

 

[ryanc]

Re: (NEW) info on 1973 20hp Mercury

thanks clam, got it off with a 1/2 inch impact, it was instant. but now with a puller I am unable to get flywheel to come off shaft?? any idea's. thanks for your replies.