power tilt and trim on 1979 Mercury 90hp outboard 6 cyl

bcary65

Cadet
Joined
Sep 12, 2005
Messages
14
can someone help me with a tear dowm diagram on my tilt/trim so i can fix it can't seem to find a manual on it anywhere # on it is 76395A3 if that would help.....<br /><br />ps thanks everyone on help on my iginition switch i ended up ordering a new switch the other one was the wrong one it was for a johnson hey it was worth trying thanks agian great site Bob
 

Ben Konopacky

Petty Officer 1st Class
Joined
Apr 5, 2004
Messages
296
Re: power tilt and trim on 1979 Mercury 90hp outboard 6 cyl

seloc volume II,merc ob 1965-1992 ,013-6 .<br />has all the info you need to do the job.
 

jheron

Petty Officer 1st Class
Joined
Jul 21, 2004
Messages
284
Re: power tilt and trim on 1979 Mercury 90hp outboard 6 cyl

What are you "tearing down" the pump or the cylinders? Whats the problem?<br />Jon
 

bcary65

Cadet
Joined
Sep 12, 2005
Messages
14
Re: power tilt and trim on 1979 Mercury 90hp outboard 6 cyl

the pump don't work
 

jheron

Petty Officer 1st Class
Joined
Jul 21, 2004
Messages
284
Re: power tilt and trim on 1979 Mercury 90hp outboard 6 cyl

If its an external pump and it won't turn you probly just need to put new brushes in the motor. They are available at any merc dealer for around $10.00. Put a scratch on the top and bottom of the motor so you can line it back up the same with the end cap and the pump housing. Remove the 2 screws on the end of the motor and carefully lift off the end cap ... there are your brushes :) If the commutater (the copper surface the brushes ride on) is out of round or in bad shape clean it up in a lathe or put the armature in a drill and and use sand paper to make it look like new again ... if you just change the brushes and dont clean up the commutater it will just eat your new brushes.<br /><br />Or mabie your motor turns and the rams dont move??<br />Jon
 

richard1969

Seaman Apprentice
Joined
Jan 24, 2010
Messages
36
Mercury115/1984/85.how much oil does it take to fill my tilt&trim.

Mercury115/1984/85.how much oil does it take to fill my tilt&trim.

sorry posted wrongly.
 
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