2 stroke oil in a 4 stroke motor ??

Hi

My neighbour, an old lady, have a Honda 4 strokes motor lawn mower. Wen I
was talking about her lawn with her she show me the motor oil she used for
few months in her lawn mower.

She use a 2 strokes motor oil !!

What a 2 strokes oil can do in a in a 4 strokes motor ?

And can it did clog the oil pump or the oil line going to the motor
cylinder ??

I ask that because after looking in the spakplug hole with a light and I
think the motor have overheat and it was seem to have leave no oil on the
cylinder surface wen I crank it, I was think that maby the oil pump or the
oil line going to the motor cylinder are glog.

I've take out all the 2 strokes oil from the oil tank, but how can I
totally clean out that 2 strokes oil from the pump and oil line in the
motor, any chemical product or else that I can use without taking apart
the motor ? (I would unplug the spakplug and put the chemical in the oil
tank and crank the motor some times)

Thank


Gaetan

You are mixing up engines and how they work.

The 4 stroke has an oil sump in the bottom you fill up with oil. This
oil gets splashed around to lubricate things. There is no 'oil tank' or
pump.

The cylinder just sees straight gasoline like a car engine.

I would just fill the sump back up with the correct oil and see what
happens. The 2 stroke oil in the bottom shouldn't have hurt much, but
it could have...

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)

Gaetan Mailloux wrote:
>
> Hi
>
> My neighbour, an old lady, have a Honda 4 strokes motor lawn mower. Wen I
> was talking about her lawn with her she show me the motor oil she used for
> few months in her lawn mower.
>
> She use a 2 strokes motor oil !!
>
> What a 2 strokes oil can do in a in a 4 strokes motor ?
>
> And can it did clog the oil pump or the oil line going to the motor
> cylinder ??
>
> I ask that because after looking in the spakplug hole with a light and I
> think the motor have overheat and it was seem to have leave no oil on the
> cylinder surface wen I crank it, I was think that maby the oil pump or the
> oil line going to the motor cylinder are glog.
>
> I've take out all the 2 strokes oil from the oil tank, but how can I
> totally clean out that 2 strokes oil from the pump and oil line in the
> motor, any chemical product or else that I can use without taking apart
> the motor ? (I would unplug the spakplug and put the chemical in the oil
> tank and crank the motor some times)
>
> Thank
>
> Gaetan

"Mike Romain" > wrote in message
...

> I would just fill the sump back up with the correct oil and see what
> happens. The 2 stroke oil in the bottom shouldn't have hurt much, but
> it could have...
>
> Mike

I agree with Mike, Gaston...Just drain out the old oil and replace it with
the
recommended 4 stroke oil. Don't overfill.

If any permanent damage is done, there is nothing you can do now...Correct
the fluids and see what happens.

Mike Romain > wrote in
:

> You are mixing up engines and how they work.
>
> The 4 stroke has an oil sump in the bottom you fill up with oil. This
> oil gets splashed around to lubricate things. There is no 'oil tank'
> or pump.



I'm just looking through the manual for my mower, a 20" Craftsman with
a 4hp Tecumseh 4-stroke. In the parts list and exploded diagram for
the engine is...an oil pump.

It appears lube on this particular engine is both splash and
low-pressure pump, like some '30s car engines. It's a flathead
and even has a road-draft tube.



--
TeGGeR®

TeGGeR® wrote:
> Mike Romain > wrote in
> :
>
> > You are mixing up engines and how they work.
> >
> > The 4 stroke has an oil sump in the bottom you fill up with oil. This
> > oil gets splashed around to lubricate things. There is no 'oil tank'
> > or pump.
>
>
>
> I'm just looking through the manual for my mower, a 20" Craftsman with
> a 4hp Tecumseh 4-stroke. In the parts list and exploded diagram for
> the engine is...an oil pump.
>
> It appears lube on this particular engine is both splash and
> low-pressure pump, like some '30s car engines. It's a flathead
> and even has a road-draft tube.
>
>
>
> --
> TeGGeR®

Yeah, some do (have a pump) and some don't.
A lot more don't than do.

My rider has a pump and a filter, though a push-mower with a pump is a
new one on me.

Dave

Gaetan Mailloux wrote in rec.autos.misc

> Hi
>
> My neighbour, an old lady, have a Honda 4 strokes motor lawn mower. Wen
> I was talking about her lawn with her she show me the motor oil she used
> for few months in her lawn mower.
>
> She use a 2 strokes motor oil !!
>
> What a 2 strokes oil can do in a in a 4 strokes motor ?

Lubricate it. The major difference between 4 stroke and 2 stroke is that
2 stroke oil is formulated to burn easily, while 4 stroke oil isn't
supposed to burn. The lawn mower should be fine, as long as the proper
viscosity was used and the oil was kept full.

>
> And can it did clog the oil pump or the oil line going to the motor
> cylinder ??

No, it is not going to clog anything. If anything, it will be a bit
cleaner than 4 stroke oil because it has to burn cleanly.

>
> I ask that because after looking in the spakplug hole with a light and I
> think the motor have overheat and it was seem to have leave no oil on
> the cylinder surface wen I crank it, I was think that maby the oil pump
> or the oil line going to the motor cylinder are glog.

The pistons have rings on the sides of them to keep oil from getting
into the combustion chamber (which is what you were looking at). A
properly running engine will not have oil where you can see it from
the spark plug hole.

>
> I've take out all the 2 strokes oil from the oil tank, but how can I
> totally clean out that 2 strokes oil from the pump and oil line in the
> motor, any chemical product or else that I can use without taking apart
> the motor ? (I would unplug the spakplug and put the chemical in the oil
> tank and crank the motor some times)

Don't worry about cleaning it out. It is oil, and will not hurt a thing if
there is a little bit left in there. Just fill it up with the proper type
of oil and it will be fine.

--
Dick #1349
"They that can give up essential liberty to obtain a little temporary
safety deserve neither liberty nor safety." ~Benjamin Franklin

Home Page: dickcr.iwarp.com
email:

Gaetan Mailloux wrote:
> Hi
>
> My neighbour, an old lady, have a Honda 4 strokes motor
> lawn mower. Wen I was talking about her lawn with her she
> show me the motor oil she used for few months in her lawn
> mower.
>
> She use a 2 strokes motor oil !!
>
> What a 2 strokes oil can do in a in a 4 strokes motor ?
>
> And can it did clog the oil pump or the oil line going to
> the motor cylinder ??
>
> I ask that because after looking in the spakplug hole with
> a light and I think the motor have overheat and it was seem
> to have leave no oil on the cylinder surface wen I crank
> it, I was think that maby the oil pump or the oil line
> going to the motor cylinder are glog.
>
> I've take out all the 2 strokes oil from the oil tank, but
> how can I totally clean out that 2 strokes oil from the
> pump and oil line in the motor, any chemical product or
> else that I can use without taking apart the motor ? (I
> would unplug the spakplug and put the chemical in the oil
> tank and crank the motor some times)
>
> Thank
>
>
> Gaetan

Anyone know/recall the How Things Work URL?
This person obviously isnt' English speaking and I suspect from
his terminology that "tank" for instance could be anything from a
gas can to an auto-mix 2-stroke oil tank, to the oil pan, to etc
etc..

He needs some very simple and short sentences with as few
adjectives and adverbs as possible in order to help him.

I would try but I do not feel qualified to use the proper words.

... A 2-stroke engine must have oil mixed with the gas.
... A 4-stroke engine does not need oil in the gasoline.
... A 4-stroke engine has an oil storage in the bottom of the
engine.
... A 2-stroke does not have a ... and so forth. I'm not very
good at it. The How Things Work seems like a good place for him
to start. Maybe someone who speaks his language would be even
better.

Pop

"Pop" > wrote in message
news:Z9_mg.502$6d1.174@trndny09...

> I would try but I do not feel qualified to use the proper words.
>
> .. A 2-stroke engine must have oil mixed with the gas.

I seem to remember that some companies developed, and perhaps even
produced, twostrokers that didn't have to have oil in the fuel. The idea
was to reduce pollution, I guess. Don't know what ever happened to the
idea.

wrote:
>
> "Pop" > wrote in message
> news:Z9_mg.502$6d1.174@trndny09...
>
> > I would try but I do not feel qualified to use the proper words.
> >
> > .. A 2-stroke engine must have oil mixed with the gas.
>
> I seem to remember that some companies developed, and perhaps even
> produced, twostrokers that didn't have to have oil in the fuel. The idea
> was to reduce pollution, I guess. Don't know what ever happened to the
> idea.

Lots of older 2 stroke bikes and scooters have an oil tank and oil
injection so you just need to add gasoline to the 'gas' tank. Vespa
used this for one.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)

"Mike Romain" > wrote in message
...
> wrote:
> >
> > "Pop" > wrote in message
> > news:Z9_mg.502$6d1.174@trndny09...
> >
> > > I would try but I do not feel qualified to use the proper words.
> > >
> > > .. A 2-stroke engine must have oil mixed with the gas.
> >
> > I seem to remember that some companies developed, and perhaps even
> > produced, twostrokers that didn't have to have oil in the fuel. The
idea
> > was to reduce pollution, I guess. Don't know what ever happened to the
> > idea.
>
> Lots of older 2 stroke bikes and scooters have an oil tank and oil
> injection so you just need to add gasoline to the 'gas' tank. Vespa
> used this for one.
>
>
-As I remember the case, they actually had a pressure oiler system on the
developmental two stroke engines. It was not a matter of injecting oil into
the
gasoline or into the stuffing box. I'll have to do a web search and see if
I can
find anything on these engines..