Oil in the mower air cleaner

Discussion in 'Home Repair' started by Claudia, May 26, 2004.

  1. Claudia

    Claudia Guest

    I replaced the air cleaner in my lawn mower. It's an older mower, and the
    air cleaner was full of oil and debris. I vacuumed and wiped the whole
    area, and put in a brand new air cleaner. The performance has improved
    significantly.

    After a few hours of operations, I noticed that the mower was having hic
    ups. I took a look at the cleaner and it's half soaked with oil. What is
    going on?

    Thanks.

    Claudia
    Claudia, May 26, 2004
    #1
  2. Claudia

    Bonehenge Guest

    On Wed, 26 May 2004 16:19:07 GMT, "Claudia" <>
    wrote:


    >After a few hours of operations, I noticed that the mower was having hic
    >ups. I took a look at the cleaner and it's half soaked with oil. What is
    >going on?


    Have you overfilled the engine with oil? Many small engines have
    crankcase breathers that attach to the air cleaner. If there is too
    much oil in the crankcase, oil can run into the air cleaner as the
    mower tilts in certain directions while mowing.

    Barry
    Bonehenge, May 26, 2004
    #2
  3. Claudia

    SQLit Guest

    "Bonehenge" <> wrote in message
    news:...
    > On Wed, 26 May 2004 16:19:07 GMT, "Claudia" <>
    > wrote:
    >
    >
    > >After a few hours of operations, I noticed that the mower was having hic
    > >ups. I took a look at the cleaner and it's half soaked with oil. What

    is
    > >going on?

    >
    > Have you overfilled the engine with oil? Many small engines have
    > crankcase breathers that attach to the air cleaner. If there is too
    > much oil in the crankcase, oil can run into the air cleaner as the
    > mower tilts in certain directions while mowing.
    >
    > Barry


    Either that or the rings are going.
    SQLit, May 26, 2004
    #3
  4. Claudia

    tomcas Guest

    Claudia wrote:

    > I replaced the air cleaner in my lawn mower. It's an older mower, and the
    > air cleaner was full of oil and debris. I vacuumed and wiped the whole
    > area, and put in a brand new air cleaner. The performance has improved
    > significantly.
    >
    > After a few hours of operations, I noticed that the mower was having hic
    > ups. I took a look at the cleaner and it's half soaked with oil. What is
    > going on?
    >
    > Thanks.
    >
    > Claudia
    >
    >

    It's supposed to be oiled.
    tomcas, May 27, 2004
    #4
  5. Claudia

    Claudia Guest

    "tomcas" <> wrote in message
    news:gn9tc.55584$...
    | Claudia wrote:
    |
    | > I replaced the air cleaner in my lawn mower. It's an older mower, and
    the
    | > air cleaner was full of oil and debris. I vacuumed and wiped the whole
    | > area, and put in a brand new air cleaner. The performance has improved
    | > significantly.
    | >
    | > After a few hours of operations, I noticed that the mower was having hic
    | > ups. I took a look at the cleaner and it's half soaked with oil. What
    is
    | > going on?
    | >
    | > Thanks.
    | >
    | > Claudia
    | >
    | >
    | It's supposed to be oiled.

    The air cleaner is supposed to be soaked with oil? I am no mechanic, but
    that sounds strange. How is air supposed to get through an oil-soiled
    cartridge?

    Claudia
    Claudia, May 27, 2004
    #5
  6. Claudia

    Bob Guest

    "Claudia" <> wrote in message
    news:ao9tc.15083$...
    >
    > "tomcas" <> wrote in message
    > news:gn9tc.55584$...
    > | Claudia wrote:
    > |
    > | > I replaced the air cleaner in my lawn mower. It's an older

    mower, and
    > the
    > | > air cleaner was full of oil and debris. I vacuumed and

    wiped the whole
    > | > area, and put in a brand new air cleaner. The performance

    has improved
    > | > significantly.
    > | >
    > | > After a few hours of operations, I noticed that the mower

    was having hic
    > | > ups. I took a look at the cleaner and it's half soaked

    with oil. What
    > is
    > | > going on?
    > | >
    > | > Thanks.
    > | >
    > | > Claudia
    > | >
    > | >
    > | It's supposed to be oiled.
    >
    > The air cleaner is supposed to be soaked with oil? I am no

    mechanic, but
    > that sounds strange. How is air supposed to get through an

    oil-soiled
    > cartridge?


    If it is made of foam, it is probably supposed to be oiled. If it
    is pleated paper, it is not.

    Bob
    Bob, May 27, 2004
    #6
  7. Claudia

    NFrames Guest

    Claudia,

    Not trying to be a smart patoot, but do you have the manual?
    Sometimes they are available online, even for the older mowers and if
    the engine is made by B& S or somebody, you could probably call or
    e-mail and get a copy...

    Anyway, point is, some mowers use oil in the air filter, like the old
    oil bath air filters used in old (i.e. pre-1960) cars. Briggs &
    Stratton's larger engines, for instance, have a paper air filter, and
    a sponge foam pre-cleaner. You saturate the pre-cleaner with oil to
    help clear all the Yeck!Ptooey! out before the air hits the paper
    filter.
    NFrames, May 27, 2004
    #7
  8. Claudia

    tomcas Guest

    Claudia wrote:
    > "tomcas" <> wrote in message
    > news:gn9tc.55584$...
    > | Claudia wrote:
    > |
    > | > I replaced the air cleaner in my lawn mower. It's an older mower, and
    > the
    > | > air cleaner was full of oil and debris. I vacuumed and wiped the whole
    > | > area, and put in a brand new air cleaner. The performance has improved
    > | > significantly.
    > | >
    > | > After a few hours of operations, I noticed that the mower was having hic
    > | > ups. I took a look at the cleaner and it's half soaked with oil. What
    > is
    > | > going on?
    > | >
    > | > Thanks.
    > | >
    > | > Claudia
    > | >
    > | >
    > | It's supposed to be oiled.
    >
    > The air cleaner is supposed to be soaked with oil? I am no mechanic, but
    > that sounds strange. How is air supposed to get through an oil-soiled
    > cartridge?

    Beats me. I just use them, I don't design them. Take a look
    http://www.briggsandstratton.com/display/router.asp?DocID=64059


    >
    > Claudia
    >
    >
    tomcas, May 27, 2004
    #8
  9. Claudia

    Claudia Guest

    "NFrames" <> wrote in message
    news:...
    | Claudia,
    |
    | Not trying to be a smart patoot, but do you have the manual?
    | Sometimes they are available online, even for the older mowers and if
    | the engine is made by B& S or somebody, you could probably call or
    | e-mail and get a copy...
    |
    | Anyway, point is, some mowers use oil in the air filter, like the old
    | oil bath air filters used in old (i.e. pre-1960) cars. Briggs &
    | Stratton's larger engines, for instance, have a paper air filter, and
    | a sponge foam pre-cleaner. You saturate the pre-cleaner with oil to
    | help clear all the Yeck!Ptooey! out before the air hits the paper
    | filter.

    Yes, I have the manual, and I also consulted B&S web site for more
    information. Since my air filter is a paper pleated version it seemed to me
    that it shouldn'g be soaked with oil. None of the information that I have
    come across mentions this. For the foam filter, yes, I understand and it is
    documented as in need of being oiled before using it.

    I just wanted to find out if a paper filter that is soaked with oil (and
    shouldn't) is an indication that there is something wrong. I sense there is
    (i.e. rings, whatever that means).

    Thanks.

    Claudia
    Claudia, May 27, 2004
    #9
  10. Claudia

    m Ransley Guest

    Oil should not soak a paper filter, paper needs to be dry to work.
    Something is wrong , but what is the question. Does your mower have a
    crankcase breather attached to the filter housing , do you consume oil ,
    does the motor smoke, are you sure it isnt gas in the filter. Remove the
    filter maybe you can see where it is comming from.
    m Ransley, May 27, 2004
    #10
  11. Claudia

    TURTLE Guest

    "Claudia" <> wrote in message news:BGntc.15297$...
    >
    > "NFrames" <> wrote in message
    > news:...
    > | Claudia,
    > |
    > | Not trying to be a smart patoot, but do you have the manual?
    > | Sometimes they are available online, even for the older mowers and if
    > | the engine is made by B& S or somebody, you could probably call or
    > | e-mail and get a copy...
    > |
    > | Anyway, point is, some mowers use oil in the air filter, like the old
    > | oil bath air filters used in old (i.e. pre-1960) cars. Briggs &
    > | Stratton's larger engines, for instance, have a paper air filter, and
    > | a sponge foam pre-cleaner. You saturate the pre-cleaner with oil to
    > | help clear all the Yeck!Ptooey! out before the air hits the paper
    > | filter.
    >
    > Yes, I have the manual, and I also consulted B&S web site for more
    > information. Since my air filter is a paper pleated version it seemed to me
    > that it shouldn'g be soaked with oil. None of the information that I have
    > come across mentions this. For the foam filter, yes, I understand and it is
    > documented as in need of being oiled before using it.
    >
    > I just wanted to find out if a paper filter that is soaked with oil (and
    > shouldn't) is an indication that there is something wrong. I sense there is
    > (i.e. rings, whatever that means).
    >
    > Thanks.
    >
    > Claudia


    This is Turtle.

    Try 40 or 50 weight non-detergent motor oil to use in it. The heavy weight oil will not come by the rings as bad as 20 weight will.
    Worth a try.

    TURTLE


    ---
    Outgoing mail is certified Virus Free.
    Checked by AVG anti-virus system (http://www.grisoft.com).
    Version: 6.0.690 / Virus Database: 451 - Release Date: 5/22/2004
    TURTLE, May 27, 2004
    #11
  12. Claudia

    Bob S. Guest

    "Claudia" <> wrote in message news:<ao9tc.15083$>...
    > "tomcas" <> wrote in message
    > news:gn9tc.55584$...
    > | Claudia wrote:
    > |
    > | > I replaced the air cleaner in my lawn mower. It's an older mower, and
    > the
    > | > air cleaner was full of oil and debris. I vacuumed and wiped the whole
    > | > area, and put in a brand new air cleaner. The performance has improved
    > | > significantly.
    > | >
    > | > After a few hours of operations, I noticed that the mower was having hic
    > | > ups. I took a look at the cleaner and it's half soaked with oil. What
    > is
    > | > going on?
    > | >
    > | > Thanks.
    > | >
    > | > Claudia
    > | >
    > | >
    > | It's supposed to be oiled.
    >
    > The air cleaner is supposed to be soaked with oil? I am no mechanic, but
    > that sounds strange. How is air supposed to get through an oil-soiled
    > cartridge?
    >
    > Claudia


    No. Some mowers use a double filter - a paper one surrounded by a foam
    one. The foam one can be cleaned and then "reoiled" by saturating it
    with oil, then squeezing out all that you can. This leaves a very
    light film of oil on the filter - certainly nothing like what you are
    describing.

    A worn or a broken compression ring can cause the problem. When the
    engine runs, pressure inside the cylinder leaks past the bad piston
    ring and goes inside the mower crankcase. This pressure forces oil up
    the vent tube going to the air filter. The vent tube's normal purpose
    is to vent unburned gas fumes and moisture from the crankcase back
    into the carb for reburning (like a PCV system on a car). But if the
    pressure is great, it will force oil along with fumes up the tube.

    If your oil level is correct and you haven't tipped your mower
    sideways, this would be the next logical guess.

    Bob S.
    Bob S., May 27, 2004
    #12

  13. > >
    > > The air cleaner is supposed to be soaked with oil? I am no mechanic,

    but
    > > that sounds strange. How is air supposed to get through an oil-soiled
    > > cartridge?
    > >
    > > Claudia


    Years ago, all air cleaners on automobiles were oil bath type. It changes
    in the late 50's or so.
    Edwin Pawlowski, May 27, 2004
    #13
  14. Claudia

    Bob Guest

    "Claudia" <> wrote in message
    news:BGntc.15297$...
    >
    > "NFrames" <> wrote in message
    > news:...
    > | Claudia,
    > |
    > | Not trying to be a smart patoot, but do you have the manual?
    > | Sometimes they are available online, even for the older

    mowers and if
    > | the engine is made by B& S or somebody, you could probably

    call or
    > | e-mail and get a copy...
    > |
    > | Anyway, point is, some mowers use oil in the air filter, like

    the old
    > | oil bath air filters used in old (i.e. pre-1960) cars.

    Briggs &
    > | Stratton's larger engines, for instance, have a paper air

    filter, and
    > | a sponge foam pre-cleaner. You saturate the pre-cleaner with

    oil to
    > | help clear all the Yeck!Ptooey! out before the air hits the

    paper
    > | filter.
    >
    > Yes, I have the manual, and I also consulted B&S web site for

    more
    > information. Since my air filter is a paper pleated version it

    seemed to me
    > that it shouldn'g be soaked with oil. None of the information

    that I have
    > come across mentions this. For the foam filter, yes, I

    understand and it is
    > documented as in need of being oiled before using it.
    >
    > I just wanted to find out if a paper filter that is soaked with

    oil (and
    > shouldn't) is an indication that there is something wrong. I

    sense there is
    > (i.e. rings, whatever that means).


    Tipping some mowers wrong can cause oil soaked filters. Not
    necessarily a real problem.

    Bob
    Bob, May 28, 2004
    #14
  15. Claudia

    Guest

    On Thu, 27 May 2004 20:53:12 GMT, "Edwin Pawlowski" <>
    wrote:

    >
    >> >
    >> > The air cleaner is supposed to be soaked with oil? I am no mechanic,

    >but
    >> > that sounds strange. How is air supposed to get through an oil-soiled
    >> > cartridge?
    >> >
    >> > Claudia

    >
    >Years ago, all air cleaners on automobiles were oil bath type. It changes
    >in the late 50's or so.
    >


    That's when a person could still afford the oil !!!!
    , May 29, 2004
    #15
  16. Claudia

    Guest

    On Thu, 27 May 2004 15:20:01 GMT, "Claudia" <>
    wrote:

    >
    >"NFrames" <> wrote in message
    >news:...
    >| Claudia,
    >|
    >| Not trying to be a smart patoot, but do you have the manual?
    >| Sometimes they are available online, even for the older mowers and if
    >| the engine is made by B& S or somebody, you could probably call or
    >| e-mail and get a copy...
    >|
    >| Anyway, point is, some mowers use oil in the air filter, like the old
    >| oil bath air filters used in old (i.e. pre-1960) cars. Briggs &
    >| Stratton's larger engines, for instance, have a paper air filter, and
    >| a sponge foam pre-cleaner. You saturate the pre-cleaner with oil to
    >| help clear all the Yeck!Ptooey! out before the air hits the paper
    >| filter.
    >
    >Yes, I have the manual, and I also consulted B&S web site for more
    >information. Since my air filter is a paper pleated version it seemed to me
    >that it shouldn'g be soaked with oil. None of the information that I have
    >come across mentions this. For the foam filter, yes, I understand and it is
    >documented as in need of being oiled before using it.
    >
    >I just wanted to find out if a paper filter that is soaked with oil (and
    >shouldn't) is an indication that there is something wrong. I sense there is
    >(i.e. rings, whatever that means).
    >
    >Thanks.
    >
    >Claudia
    >


    Are you sure you didnt flip the mower on it's side, or upside down?
    If not, throw a new set of rings in it. It's not all that hard on
    those mower engines.
    , May 29, 2004
    #16
  17. Claudia

    Claudia Guest

    <> wrote in message
    news:...
    | On Thu, 27 May 2004 15:20:01 GMT, "Claudia" <>
    | wrote:
    |
    | >
    | >"NFrames" <> wrote in message
    | >news:...
    | >| Claudia,
    | >|
    | >| Not trying to be a smart patoot, but do you have the manual?
    | >| Sometimes they are available online, even for the older mowers and if
    | >| the engine is made by B& S or somebody, you could probably call or
    | >| e-mail and get a copy...
    | >|
    | >| Anyway, point is, some mowers use oil in the air filter, like the old
    | >| oil bath air filters used in old (i.e. pre-1960) cars. Briggs &
    | >| Stratton's larger engines, for instance, have a paper air filter, and
    | >| a sponge foam pre-cleaner. You saturate the pre-cleaner with oil to
    | >| help clear all the Yeck!Ptooey! out before the air hits the paper
    | >| filter.
    | >
    | >Yes, I have the manual, and I also consulted B&S web site for more
    | >information. Since my air filter is a paper pleated version it seemed to
    me
    | >that it shouldn'g be soaked with oil. None of the information that I
    have
    | >come across mentions this. For the foam filter, yes, I understand and it
    is
    | >documented as in need of being oiled before using it.
    | >
    | >I just wanted to find out if a paper filter that is soaked with oil (and
    | >shouldn't) is an indication that there is something wrong. I sense there
    is
    | >(i.e. rings, whatever that means).
    | >
    | >Thanks.
    | >
    | >Claudia
    | >
    |
    | Are you sure you didnt flip the mower on it's side, or upside down?
    | If not, throw a new set of rings in it. It's not all that hard on
    | those mower engines.

    What do you mean "throw a new set of rings in it." Is this a job that
    someone with average mechanical aptitude can do? Where are those rings? I
    imagine in the engine somewhere. How do you get there? The Briggs &
    Stratton web site is silent on this subject - it keeps telling me to take it
    to a qualified service center. Lots of questions as you can see from a
    woman on a very tight budget, but willing to fix things herself. So don't
    tell me to throw a new set of rings in it, and leave me hanging. <g>

    Thanks.

    Claudia
    |
    Claudia, May 29, 2004
    #17
  18. Claudia

    m Ransley Guest

    If you need rings the mower has seen better days it isnt worth it as
    there are alot of other components to rebuild. Basicly it means
    rebuilding it. If its the rings run it till its dead or it smokes to
    much.
    m Ransley, May 30, 2004
    #18
  19. Claudia

    Doug Boulter Guest

    "Claudia" <> wrote on 29 May 2004:

    > What do you mean "throw a new set of rings in it." Is this a
    > job that someone with average mechanical aptitude can do?


    Rings go around the piston and create a seal with the cylinder
    wall. The top ring is the compression ring, and it keeps the
    pressure from the combustion of the fuel-air mixture from getting
    past the piston. The next ring down is the secondary compression
    ring, and can be thought of as a backup to the compression ring and
    the oil ring. The bottom ring is the oil ring and allows
    lubrication to take place, but keeps oil out of the combustion
    chamber.

    No, replacing rings in not a D-I-Y job if you've never worked on
    internal combustion engines before.

    --
    Doug Boulter

    To reply by e-mail, remove the obvious word from the e-mail address
    Doug Boulter, May 31, 2004
    #19
  20. Claudia

    Bob Guest

    I've never had a B&S engine last less than several years. In
    reality, the only failures I've had were from hitting things with
    the blade.

    Bob

    "Lost-In-Translation" <>
    wrote in message
    news:m1Nvc.625$...
    > Briggs & Stratton motors are junk. My mower does the same

    thing. I have to
    > change the air filter twice per season. I had a B&S gas power

    washer that
    > went into the trash after one year because of oil issues also.
    >
    >
    > > > Yes, I have the manual, and I also consulted B&S web site

    for more
    > > > information. Since my air filter is a paper pleated

    version it seemed
    > to me
    > > > that it shouldn'g be soaked with oil. None of the

    information that I
    > have
    > > > come across mentions this. For the foam filter, yes, I

    understand and
    > it is
    > > > documented as in need of being oiled before using it.
    > > >
    > > > I just wanted to find out if a paper filter that is soaked

    with oil (and
    > > > shouldn't) is an indication that there is something wrong.

    I sense
    > there is
    > > > (i.e. rings, whatever that means).

    >
    >
    Bob, Jun 8, 2004
    #20

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