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...

Me thinks that you have a blown head gasket or a cracked cylinder, do,
or ask for a compression test.

JK wrote:

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...

Nope, compression is fine. 165 lb. in all three cylinders.
All plugs are burning a nice tan color.
This is GAS getting in the Oil, not water.
Thanks for the reply though.....jk.....

JK wrote:

Nope, compression is fine. 165 lb. in all three cylinders.
All plugs are burning a nice tan color.
This is GAS getting in the Oil, not water.
Thanks for the reply though.....jk.....

A leaky diagphram on a crank case pressure / vacuum fuel pump?

Terry K

One would think the dealer would have done the compression test as soon as
the gas was finding it's way into the oil. I would recommend you find a new
mechanic, one who is familiar with Honda's and can call Honda if he has a
problem he is not able to solve.


"Dry" wrote in message
...
Me thinks that you have a blown head gasket or a cracked cylinder, do,
or ask for a compression test.

JK wrote:

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...

Under warranty yet? If yes, if no... ask your dealer to talk to the Honda
area rep. Maybe you need to find a smarter dealer to work on your engine.
But until then I would gladly sell your extra oil back to the oil
companies(lol)!

"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...

If it's gasoline finding it's way into the crankcase of a 4 stroke in large
quantities it almost has to be the fuel pump. I believe the USCG requires
dual diaphram pumps with a weep hole between diaphrams. Thus when the outer
diaphram fails you begin to get small amounts of fuel in the out of the pump
which is VERY obvious.

I agree that you should consider another shop. Since I'm unfamiliar with
Hondas I don't know enough to try to diagnose the issue. On some engines
it's possible to install a pump with the lever in the wrong position which
can cause pump damage very quickly (immediately?).

I suppose it's JUST possible there could be a carb float chamber issue
allowing too much fuel to get into the engine if it is tilted just so.
Pretty unlikely but a DECENT technician could certain diagnose your issue
with the shop manual and engine in front of him/her.

Good luck.

Butch
"Woodchuck" wrote in message
.. .
Under warranty yet? If yes, if no... ask your dealer to talk to the Honda
area rep. Maybe you need to find a smarter dealer to work on your engine.
But until then I would gladly sell your extra oil back to the oil
companies(lol)!

"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...

Engine is a 1997, no warranty left ;-(
...jk..

In article ,
says...

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...


Reason 1 Carb overflow gets into oil sump, this is how hondas work.
It is something they do often when the carb float system screws up.

Reason 2 Never buy a Honda!!!!!!! I love bearings running in gasoline!!!

On Sun, 08 May 2005 03:46:47 -0000, (gudmundur)
wrote:

In article ,
says...

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...


Reason 1 Carb overflow gets into oil sump, this is how hondas work.
It is something they do often when the carb float system screws up.

Reason 2 Never buy a Honda!!!!!!! I love bearings running in gasoline!!!

Heh. I was told once that when asked about service schools, the Honda
reputation said Honda didn't have any - they never break down, so
there was no need for them. :)

Later,

Tom