Here's the fix. Change the thermostat!!! If you run in salt water
change it every year. For us old dogs, a thermostat is to keep our Model
A's from running hot. NOT ANY MORE!! Thermostats on these newer high
tolerance engines are to keep the engine warm enough to reach its proper
operating temperature. At that temp, the thermal expansion makes all of the
parts expand to fit properly, so you don't get gas blowing by the rings and
diluting the oil.

After 'making oil', in a pair of Honda 45s, I found metal flakes in the oil.
At first, I couldn't find anyone at Honda who either knew or would admit a
problem. Finally I got hold of a rep who solved the problem by saying that
there's plenty of 'meat' on the rod bearings, so just change the thermostat
and run 'em. I got another 500 hours out of a pair of them. Try it.. the
thermostat costs about $15 and takes only a few minutes to install.

Changing the thermostats stopped the problem for me. As the thermostats
became fouled late in the season, the problem began to return.

I replaced the Hondas with 60 Merc Bigfoots. (I have twins on a Sea Cat) At
about 100 hours, I noticed that I was 'making oil', on both sides, so I
changed it and checked again after another 50 hours. Yup, the oil had grown
an inch and a half above the full line on both engines. After my experience
with the Hondas, the Merc thermostats were checked during winterization, but
because they looked ok they were not replaced. Any suggestions??

Herb


"JK" wrote in message
...
HELP ! I posted
here about a year ago about a Honda 50 HP 4 stroke outboard making oil.
Well, after a new fuel pump was installed, carbs checked etc, things
seemed fine for about 20 hours of run time, then so much gas started
getting into the oil it started bubbling out the dipstick tube again.
Dealer says it's time for a another New Pump.
Now pump #3 is in for about 5 hours and it doing the same thing !
What's going on here ?
The engine otherwise runs perfect-as smooth as glass- the choke is not
sticking or coming on by itself--has new thermostat-none of the carbs
are running rich and it is stored wiith the engine verticle,run dry on
gas and the fuel hose off.
There has to be know problem and fix for this engine. Changing the Oil &
Filter every 5 hours is not the cure !
PS-The dealer is stumped.
...jk...