Search results

  1. merc850

    whats with this nipple?

    This is a parts listing from 1975 850 Part 17 or 27 are at the bottom of the block and are bleed check valves attached to a hose that runs to the top bearing, just bought one last week from my Mercury dealer $14.
  2. merc850

    1966 Mercury 950SS _ Reverse Locking Mechanism

    Here's the manual method but follow these instructions for setting the shift up This is how I do it in about 60 sec.: Turn the LU shift shaft by hand counter-clockwise until it stops, then with Vise Grips tight on the bottom of the shaft turn it a few more degrees CCW until it clicks into a...
  3. merc850

    Shift cable 67 100hp merc

    This is from the 1965 manual The 1965 and newer manual is a must for keeping these old motors going.
  4. merc850

    Mercury 1500 "Tower Of Power" timing / idle question

    These steps are from the 1975 manual
  5. merc850

    1969 Tower of Power lower unit

    First I would check that the shift cam (at the rear of the unit) is still in place (I would replace it to make for surer shifting ) then turn the shift shaft so the cam is facing the back of the unit. Reassemble the unit, the carrier nut has to be torqued to 210 ft/lbs with a special tool - a...
  6. merc850

    1976 Merc 650-Pros and Cons to Rebuild

    Remove the transfer port cover (green arrow) and check the pistons for damage, you can push on the rings gently with a pencil to see if they are still springy and you will need a new gasket.
  7. merc850

    mariner 80hp not tilt lifting how to fill up

    Try following these instructions
  8. merc850

    1967 Mercury Thunderbolt 50HP Motor and Control Question

    Early 60's Mercs were white, later they went to black just use the controller that matches your motor
  9. merc850

    Mercury Shock Absorbers

    Re: Mercury Shock Absorbers Those shocks are meant to slow the motor rising out of the water if you strike an underwater object while underway, there's also a mercury switch on the powerhead that cuts off the ignition until the motor is down again. The two work together to prevent damage to the...
  10. merc850

    1980 mercury power tilt and trim issues / new to boating

    Re: 1980 mercury power tilt and trim issues / new to boating You can tighten the hose connections with a wrench (a line wrench is best) be careful 'cause stainless steel is soft, I would drain the oil by undoing the bleed screws and pumping it dry then replace the oil by filling it into the...
  11. merc850

    50hp merc power t/t question

    Re: 50hp merc power t/t question I would like to see this winch idea please post a picture! The first thing you need is a tachometer to find out what RPM your motor is turning at, then you can choose a prop that puts you at 5500 rpm full throttle (possibly a 19 pitch one), also, you should be...
  12. merc850

    Preparing boat for the summer...

    Re: Preparing boat for the summer... You should follow this lube chart and grease the driveshaft and shift shaft splines.
  13. merc850

    1974 mercury 115 has issues need help please

    Re: 1974 mercury 115 has issues need help please When you start it do you raise the fast idle lever(little one on side of control) pump the bulb until it's hard and hold down the choke? If the starter is too slow it might need to be taken apart and cleaned and new brushes installed if needed...
  14. merc850

    What can you tell me about this 850? Tilt and trim?

    Re: What can you tell me about this 850? Tilt and trim? 1st picture shows the trim limit wires are cut; you're gonna need this diagram to rewire engine. For TNT you need the four hose pump and 4 hoses and switches, look on ebay. Throw those spark plugs out and replace them with L76V I'd also...
  15. merc850

    1964 merc lower unit

    Re: 1964 merc lower unit Here's how it is built first you should soak the perimeter of the nut with penetrating fluid and bend the tab on the locking ring, you need a spanner that engages the lock nut and turn it off. Maybe you should ask a dealer to unscrew the lock nut. The bearing carrier...
  16. merc850

    manual choke 1975 merc 850

    Re: manual choke 1975 merc 850 The manual parts are in the square.
  17. merc850

    Tilt/Trim not working after reinstalling outboard motor

    Re: Tilt/Trim not working after reinstalling outboard motor To do a complete job on the bleeding, you can find lines on ebay.
  18. merc850

    Dockbuster Question

    Re: Dockbuster Question Here's my 1961 Merc 700 DR in the 90's I was given this motor and some spare parts by a friend. All it needed was a gearcase retainer nut ($45.00) and it hauled a** around 40mph and started easily. I ran it at 100:1 Amsoil mix for about 10 seasons until I decided to...
  19. merc850

    How to Revive a 1958 Merc Mark 78 Super Marathon?

    Re: How to Revive a 1958 Merc Mark 78 Super Marathon? The Dyna float is the motor to swivel bracket mounting made of rubber. One thing I'd do is replace the timing belt that comes out from under the flywheel - to do this remove the distributor belt cover first then slide the belt up off the...
  20. merc850

    1975 Mercury 850...

    Re: 1975 Mercury 850... I have an 850 too and I found crap in the lower carb filter.I took out the filters because there's one after the fuel pump and in the tank to filter the fuel.
Top