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  1. chum1

    what is correct prop for 1977 merc 850 85hp

    Hello have an 850 on a 16ft bayliner, was wondering what prop? I bought a 12 3/4 X 21 pitch per merc. prop buying size guidelines and its too much blade.
  2. chum1

    '81 50hp stalling and rpm problem: Video included for you master mechanics :)

    Re: '81 50hp stalling and rpm problem: Video included for you master mechanics :) here is a "free" service manual it covers these models: go to this link, download and burn it to disk, then you can erase it off your hard drive and not bog down your memory or leave it on if you have a...
  3. chum1

    Mercury 175 hp no WOT

    Re: Mercury 175 hp no WOT here is an idea if you can find a plastic 30 gal. barrel, this works good for me and also allows running in gear for short periods.
  4. chum1

    DVA adapter for multimeter

    finally got the little wizbangs and created a dva adapter for around $16.00 in multiple parts, I have yet to test it until i get my "HOOKED ARM" trigger, just want to verify its soldered up right. Is this correct? I couldnt find the exact resistor so used a 1/2w 4.7 mohm one instead, hopefully...
  5. chum1

    Can it be fixed?

    Re: Can it be fixed? I would certainly try, it looks like there is plenty of meat there to work with. You will need to remove broken bolt in the hole if there is one. It also looks slightly off center? Start with a 1/8" drill bit after you center punch the steel bolt (if you can get it in...
  6. chum1

    corrosion city under cooling cover, whats the best way to remove busted bolts

    Hello all, just got the lower end installed after re sealing everything on this 77' 85hp, works and shifts great!! The next feat is to fix the leaking spark plug hole, I carefully removed cover and found quite a bit of corrosion, is there anything that can be done to the cover to stop the...
  7. chum1

    77' 85hp no charge

    I have been working on my 85hp merc. and discovered its going to be a great engine ( compression 115 or better)knock on wood, there seems to be a problem with the charging system, I took a couple of shots of the rectifier?, there looks to be a condenser also that has the wire just about corroded...
  8. chum1

    Whats the easiest way to remove bearing carrier 77' 85hp

    Just picked up a 1977 85 hp merc for $200 with a lower unit thats stuck in forward, thought that would be an easy fix but was wrong, after trying to remove the locknut with my special tool, i found out it was froze solid, had to drill some holes carefully then use a chisel to break it out. I'm...
  9. chum1

    just bought a 88 bayliner capri for $500.00 and didnt run away

    Hello boat enthusiasts, just picked up this boat and was wondering about some tips on fixing some of the problems, it steers hard and I lubed up the back slider part with mouse milk and wd-40 and it still is tuff...any ideas? the back end transom part is in good shape and the fuel tank was still...
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