Logo
FULL SITE MENU

Search results

  1. W

    1971 80hp Mercury motor disassembly question

    I am trying to determine how badly I messed up my 80hp merc by tearing it apart. I am at the point now of taking off the crank shaft and pistons. There are two philips screws holding the crankshaft in place and they will not come loose. I've tried an impact tool but broke the bit! I am...
  2. W

    timing confirmation 1971 80 hp

    I'm doing my best to make sense of the timing instructions in my manual for the 71' 80 HP mercury 4 cylinder OB that I have recently acquired. When I put a timing light on the number 1 cylinder, I can not even come close lining up the marks with 23 degrees. Am I correct using cylinder 1? The...
  3. W

    Timing Marks on Timing Decal

    My manual says to set the timing on my 71' merc outboard at 23 degrees BTC. The timing decal does not have a 23 degree mark on it. It jumps from 10 degrees to 25 degrees with a big void in between. The question I have is: Do I just approximate where the 23 degree mark should be on the decal...
Back
Top