Search results

  1. A

    1978 mercury 700 not starting

    I have a 1978 Mercuru 700 70 hp engine, we were underway one day and all of a sudden the engine stopped and would not restart, upon getting it home I realized the shift rod was broken, i replaced the shift rod and new impeller etc in water pump and it is still not starting, I do not think I am...
  2. A

    Splined seal, 1978 Mercury 700 70 hp

    I am trying to determine where on the drive shaft the splined seal goes, it fell off of the shaft when I was pulling the lower unit, does it go all the way down to the bottom of the splines on the drive shaft? the part number for it is 86304. Any info would be appreciated greatly as this is the...
  3. A

    22 1/2 inch shift rod for 1978 mercury 70 hp long shaft?

    I am trying to determine whether a 22 1/2 inch shift shaft will work for my 1978 mercury 700 70 hp engine, any advice would be greatly appreciated!
  4. A

    1978 700 shift rod

    I am trying to determine the size of the shift shaft for my engine,I think the one I have is 20 inches but I am not sure.also when I pulled the lower unit off a small plastic piece with splines fell down,I think it goes on the splines of the drive shaft but want to make sure,I have pics of the...
  5. A

    1978 Mercury 700, broken shift rod

    I have a 1978 mercury 700 70 hp outboard, I have posted about this engine before. The shift rod is broken near the top and the lower unit shift rod seal is leaking oil, my plan is to replace the shift rod and the seals in the lower unit as well as oil, my question is would a shift rod from a 115...
  6. A

    1978 Mercury 700 70 hp linkage broke after installing hydrofoil

    I have a 1978 Mercury thunderbolt 700, it is in great condition in my opinion and it has had no problems since I purchased it. The other day I installed a new hydrofoil, a doelfin, we took the boat out and were cruising around 20 mph when all of a sudden the engine just stopped and would not...
  7. A

    Steps to remove drive shaft from 1999 v6 lower unit

    Can anyone give me step by step instructions on how to remove the drive shaft? I know it is a two piece and have been told that I do not need to take the whole gear case apart to switch from a 25 inch drive shaft to a 20. I am just having some trouble understanding where it disconnects from and...
  8. A

    Spun hub or bad lower unit?

    I have a 1999 200 hp Johnson Ocean runner, the engine runs great but when I put it in gear it sounds really harsh. The propeller only spins when the engine is tilted onto the boat just enough for the intake holes to be submerged, and when the prop does spin it is slow and does not produce any...
Top