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  1. R

    Mercury 850

    Rev AL said he doesn't want to put so much money into 45 yr old motor.parts are hard to find, good ones very hard to find. But I thank you all for your help and know how.
  2. R

    Mercury 850

    Thank you for all your time and knowledge it is very appreciated!!!
  3. R

    Mercury 850

    I found outter cover and baffle but haven't found inner water jacket cover. This motor has had a lot of different people working on it in the 45 +yrs it has been around. I told Rev. Al finding good parts is going to be hard. I said I might take it apart and see if icoould jb weld it?
  4. R

    Mercury 850

    I couldn't see exactly we're it was leaking,but it was leaking badly. I had lower cowling on and it steady stream down back middle of mid lower exhaust housing. Is very hard to pull power head. I don't a manule but iam pretty handy. I would do water a pump since lower unit has to come off. This...
  5. R

    Mercury 850

    I have beenreading o.ther post. And from what I read the lower unit has to come off, and power head has to be pulled? So exhaust cover and baffle will come off Is this true. I might bitting off more than chew
  6. R

    Mercury 850

    Now iam looking for some help tell with how exhaust manifold come off. iam hoping the power head doesn't have come off any help would be greatly appreciated
  7. R

    Mercury 850

    Is it the baffle that will cause leak? Or the manafold or both. I did see a baffle for on ebay for 55$ seems like a good price I'll look for manifold or can I it surfaced? And again thanks for all your help!!!
  8. R

    Mercury 850

    Well I went and got spark tester there all about the same. When I omh wires#2 had tested bad, I put 12 gage copper in it place to test it #2 started to fire. And started pushing oil and water out exhaust manifold! Look like a big job,and then what about parts. I did mark all cyl at TDC just to...
  9. R

    Mercury 850

    First of all rev.Al said God bless you all,and just wanted thank for all the help and different ideas.I do have spark on all cyl,but it is only running on 3and4,iam going to start pulling all spark plugs recheck comp,omh all wires,then I'll go to carbs
  10. R

    Mercury 850

    I had to patch wiring on motor side of harness.iam just helpping rev. AL this is all free. work andit's turning into a snowball
  11. R

    Mercury 850

    It ran but would die at ildle
  12. R

    Mercury 850

    Iam pretty sure the are in the right firing order. I will pull all plugs and get TDC on all cyl tomorrow. Thank you so much!!!. I'll keep working at it
  13. R

    Mercury 850

    I have turned idle mixture screws and it changed rpm
  14. R

    Mercury 850

    Spark Sound the same on #3 lower cowling is back on so I can't pull#4 wire I don't have a spark tester
  15. R

    Mercury 850

    And yes it has distribator
  16. R

    Mercury 850

    1 and 2 have are wet with fule. I tried changed wires on 1 and 2 with no change. If I hold wires at end of plugs I can hear the spark jumping. I was thinking of stator because I had used rotary tool to get to the wires to sodter new wires on
  17. R

    Mercury 850

    The top 2 have fule on them. The plugs look like new very white. They are perm gap. I pulled spark plugs wires 1 and 2 make no change but it will die when pull #3
  18. R

    Mercury 850

    It's 1975. I have spark on all cyl. But it's only running on bottom 2 cyl all cyl have 130 psi compression
  19. R

    Mercury 850

    It is a1975. And I have spark on top to cyl. But it's only running on bottom to cyl.
  20. R

    Mercury 850

    I new to posting I'll try to do better in future
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