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  1. merc850

    prop shaft carrier stuck

    Re: prop shaft carrier stuck Just in case you've never seen inside one.
  2. merc850

    4 hose PT pump

    Hey all, I traded a guy some boat stuff for a 70's PT pump with no hoses - rusted motor that I got running and I was wondering if taking the pump body apart for inspection/cleaning is a good idea, the manual says no. Has anyone successfully dis/re assembled this part?
  3. merc850

    '62 Mercury Twin 25hp Push Button Shift

    Re: '62 Mercury Twin 25hp Push Button Shift I have a Merc 200 like that one and I paid $150 dollars for it, these motors use a special shift assembly that is more complex than a standard one. These guys can help with parts and procedures http://johnsoldmercurysite.com/phpBB3/index.php.
  4. merc850

    lower end won't drop 75hp 1985 merc 2stroke. 4cyl

    Re: lower end won't drop 75hp 1985 merc 2stroke. 4cyl The anti-seize should be used on all stainless steel fasteners to prevent galling, I use Merc products because they're made for Mercs and to support my local marine dealer. They also make an A-Corrosion spray.
  5. merc850

    1972 mercury 140hp

    Re: 1972 mercury 140hp Before you do any more damage make sure that the rear thrust hub (Nr. 25) is installed and there is no fore and aft movement in the prop.
  6. merc850

    Leakdown testing

    Can a leakdown test be done in the driveway and what are, and where do I get the tools to do it?
  7. merc850

    I need help identifying this motor

    Re: I need help identifying this motor If you are going to start it use this wiring dia.
  8. merc850

    questions regarding 1960 merc300 rebranded as merc350

    Re: questions regarding 1960 merc300 rebranded as merc350 Here's the rectifier check
  9. merc850

    will a 65HP 4 cyl rotor buton fit a 6 cyl 90hp merc?

    Re: will a 65HP 4 cyl rotor buton fit a 6 cyl 90hp merc? Here's a page from the manual that shows the 2 point system used in inline 6's from the 50's to mid 60's, this also uses 2 automotive coils. This is the pre Thunderbolt system, but on the early Tbolt system it was used also.If you are...
  10. merc850

    1975 Mercury 850 Thunderbolt 85hp

    Re: 1975 Mercury 850 Thunderbolt 85hp Here's a wiring diagram to help you.
  11. merc850

    1975 850 Throttle Linkage Problem

    Re: 1975 850 Throttle Linkage Problem I had the same problem after replacing the trigger with an aftermarket one, the solution was to retard the spark by moving the distributor pulley one notch CCW on the beltbut before you do this check the timing according to this page. This also means...
  12. merc850

    Timing marks 1972 1150...

    Re: Timing marks 1972 1150... Here's the Manual methodthe only thing that is important for initial timing is the relationship between the dist. pulley arrow and the 3 dots on the flywheel.
  13. merc850

    Points 1976 150hp

    Re: Points 1976 150hp Here's the wiring to help clarify what goes where
  14. merc850

    1973 Merc 850 Timing advace

    Re: 1973 Merc 850 Timing advace According to the Manual it's 27* BTDC.
  15. merc850

    1150 tower of power distributor question

    Re: 1150 tower of power distributor question Here's a schematic and instructions for disassembly the rotor is molded onto the shaft - do not pull on it - but I don't think you have to touch the rotor/shaft all you have to do is loosen the fit between Nr. 13 and 15 and 20 - it could be rusted or...
  16. merc850

    1971 Merc 800 stalls when put into gear - UPDATE 7/27

    Re: 1971 Merc 800 stalls when put into gear .... grrrrrrr Re: 1971 Merc 800 stalls when put into gear .... grrrrrrr Here are 2 pages from different manualsthe 800 one is what you're probably using but note the 850 method, it might work for you. If you have this type of carb the filter may be...
  17. merc850

    Why no thermostats in some outboards?

    Re: Why no thermostats in some outboards? I think I've posted this before .
  18. merc850

    Ok..this 850 has me scratching my head now...

    Re: Ok..this 850 has me scratching my head now... It sounds like the bleed restrictors in the transfer port area might be missing, take the covers off and look for three plastic plugs here and these are not available at Walmart or Pep Boys - you'll have to get them from Mercury. You can also...
  19. merc850

    Merc Thunderbolt 50 - what year? And prop?

    Re: Merc Thunderbolt 50 - what year? And prop? Here's a page from the Merc manual that shows the location of the screws, there is also a FLUSH screw but that is not a lube point, - you undo them both to drain and fill the LU. You can buy a pump at a dealer for filling and I would recommend...
  20. merc850

    Need help with an old Mercury inline-6

    Re: Need help with an old Mercury inline-6 The points are in the distributor housing you have to undo the 4 bolts and remove it to set them, also check the belt that drives the dist. for aging cracks etc.
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