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  1. M

    choosing a compression gauge

    i have a '72 merc 1150 L6 outboard and want to do a compression test. i do not presently have a tester and im wondering when i go to buy a tester, what would be the best brand to buy...i know the no.6 cylinder is hard to get to so im hoping to get one that is compatible and trustworthy!
  2. M

    trickle battery charger?

    i seen a product that was for slowly charging your battery when not using your boat...what is it? whats the best one on the market?
  3. M

    prop sizing

    i posted a thread last night about my '72 merc 1150 gaining RPM's on its own and was told my prop was probably too big. the prop i have now has stamped in it 17P A4, do these numbers mean anything and if so, what would i be looking for in a size or two smaller?
  4. M

    '72 merc 1150 RPM "gain"

    when i was on the lake the other day i had a hard time holding a steady throttle. i did have a "full boat" people, gas, gear, etc in this 16.6' Glastron Bowrider. i did not lose RPM's or speed but it would increase the RPM's and speed and i would have to keep backing off the throttle to hit a...
  5. M

    test tank for timing and sychronizing

    any suggestions for a cheapo' test tank (with motor on boat)? will a big Rubbermaid tub or trash can work...safely!? open for suggestions...thanks!
  6. M

    '72 merc 1150 throttle shutter setting

    when at idle, what should be the position of the throttle shutters, my throttle shutters are resting against the carb body throat or "venturi". when i used to tune a holley carb on my chevy, the throttle plates were to be set where the throttle plate was exposing about half of the idle feed...
  7. M

    '72 merc 1150 throttle pickup adjustment

    ok, for my 72 merc 1150 seloc says advance the throttle to TDC or -2 degrees BTDC...the primary pickup should just be touching the carb cluster...to make adjustments "loosen the throttle plate pickup attaching screws" and shift the plate to just make contact with the carb lever...WHERE IS the...
  8. M

    '72 merc 1150 timing belt installation

    how does one make sure the timing belt installation is correct? the seloc manual just seems to make things confusing! what marks am i looking for on the flywheel and what mark on the distributor pulley? and what is the alignment procedure, seloc tells me to do this-that-and-the-other-thing AFTER...
  9. M

    trim limit switch debate!

    i want to address this topic first at this forum level because so many threads have been coming in about this topic! its possible it will be moved to another catagory but, if you are interested please follow! i do believe this should be considered a repair topic! Please listen and consider this...
  10. M

    glassmaster parts

    hey friends, i submitted a thread back at the beginning of August in reference to these few parts from an old glassmaster boat. it has taken awhile but im finally getting around to listing them on eBay. i only have the glove box w/an aluminum finished door, it has a chrome "glassmaster" emblem...
  11. M

    Project: Trim sender mounting on merc outboard

    Just wanted to share this little project for anybody interested! I do a lot of night fishing, sometimes deep water and sometimes i get up into the shallow water around the base of the dam, i recently installed a factory power trim unit on my motor for the shallow water but it is impossible a...
  12. M

    1150 merc trim limit cut-out switch

    can anyone tell me where to find a replacement trim limit switch for my '72 merc 1150? i know this has been a hot topic as to the failure rate due to water intrusion corroding the spring and plunger not to mention the switch itself, however; i still would like to find a replacement as i have...
  13. M

    glassmaster parts

    i have an old glassmaster boat that im getting ready to take to the landfill, it has some pretty nice accesories that im going to remove: it has a nice aluminum glove box door, it has the side mirrors and complete windshield! i have no need for these parts but im not going to trash them as i...
  14. M

    1150 merc temperature monitoring

    if i wanted to install a temp gauge, to where and what on the motor do i attach it to?
  15. M

    '72 merc 1150 water pressure reading

    tried to dig this up from FAQ's but couldn't find the article, i just installed a water pressure gauge and was wondering what the optimal readind should be and what is considered to low water pressure. what PSI readings should i have?
  16. M

    72 1150 merc trim pump control valve assembly

    I asked about this last night but haven't gotten any info, can anyone come up with a diagram showing the spring, check-ball assembly order in the pump control valve body...?
  17. M

    1150 merc trim pump control valve assembly

    thanks for the reply AMD, yeah, i know that diagram...but more specifically, i need the exploded view of the valve body assembly, by itself, in its entirety: the reverse lock-out channel for example is comprised of...one small ball, followed by the spring and then the large ball follwed by yet...
  18. M

    1150 merc trim pump control valve help

    I will try to be as specific as possible: I acquired a power trim system but the pump motor was very weathered so to save a buck i decided to rebuild this pump...the only problem is, when i disassembled the control valve body i laid the parts out in the order they came out...springs, check balls...
  19. M

    1150merc swivel rod dogs and actuator rod

    one more thing Laddies...I have removed all the parts we've spoken about but i need to know one more thing...what does that actuator rod do in the lower end...I thought this rod was to prevent the motor from being put into gear until it was locked on the tilt pin and the rod pulled up before it...
  20. M

    1150 merc PT&T Ques.

    Thanks Laddies, I dont wanna sound like a dummy here but...I see the cotter pin and such but, when i lower my motor down, when it engages the tilt pin it swivels the "dogs" and pulls up on what im going to refer to as the "saftey neutral rod" that extends down into the lower end...whats gonna...
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