Recent content by Roger2

  1. R

    Intermittent problem;

    Hi Guys:<br />Boat is still in the garage.<br /><br />Let me tell you my tale of woe....Working on a 1989 Mercury 50hp with power tilt. One guy tells me the problem is in the carburators. So I put new gaskets on the carburators. One guy tells me the problem is in my coils, so I swap coils and...
  2. R

    Rubber hoses

    Need help with an old 1955 Johnson 35hp. motor that I have managed to keep alive for the past 25 years. Rubber hoses have deteriorated to a point that there is black mush inside hose. Where can I buy this rubber hose. It appears to be smaller 1/4 inch. Does gas line hose come in 1/32 inch...
  3. R

    Lower unit overhaul

    Can anyone tell me how much backlash there should be between the pinion gear and the forward or reverse gear. Working on a 1971 Mod400 40hp with remote. Drive shaft, which pinion gear is attached to, moves up or down about a 1/16 of an inch. When water pump is finally mounted will this slop...
  4. R

    Lower unit gearing

    Working on a Merc 400 40hp with remote. Manual describes how to remove the "Gear Housing Cover" using this special tool. Is there some other way of removing this threaded segmented locking ring from the Gear Housing? One mechanic I talked to said to heat with a propane torch and give it a...
  5. R

    Timing a Mercury 400 engine

    Just to let everyone know what I think I learned in the past three days, 3 weeks, & 3 months of working on this motor.<br />#1 I think it is easy but it took me these three days to understand the book. OK here is what I did.<br />Remember I am doing this in my basement without the motor...
  6. R

    1971 Merc 400 flywheel troubles.

    Hi guys.<br />Need help: How do you set up the crankshaft hub, (Which has (8) threaded holes in it.) to the flywheel.<br />Here is what I have done:<br />1. Removed 8 bolts from hub and removed hand crank bracket.<br />2. Positioned the #1 (Top) piston to TDC.<br />3. Rotated the flywheel so...
  7. R

    Carburator problems

    Hi Guys:<br />Can somebody give me an education on how a 50hp Merc with 2 carburators feed a 3 cylinder engine. Everybody seems to think that the problem I am having is with the carb's. Big question is how the #1 cylinder is being foulded out. Is there a manifold plate behind the carburators...
  8. R

    Mercury 50hp Troubleshooting

    Hi Guys:<br />What can the home mechanic do to systamaticly trouble shoot a motor that has an intermittent problem. Let me explain. Here are some of the symtoms.<br />1. Gas bulb is soft every morning.<br />2. Cylinder #1 plug is fouled and looks like it's flooded with oil and has carbon...
  9. R

    Mercury 50hp Starting problems.

    Hi Guys: Need help. 1989 50 hp Mercury 3 cylinder with oil injection Outboard. Worked for 3weeks to finally identify the Mercury Kill switch a doing most of the problem. Can anyone tell me just what this switch does. I think it activates the choke. Anyway I am still having a problem...
See more
Top