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Thread: Why is my lawn mower blowing oil(UPDATED W/PICs)

  1. #1

    Why is my lawn mower blowing oil(UPDATED W/PICs)

    John Deere mower w/ a B&S engine. Was working just fine when I put it in storage 6 months ago. Now, it is smoking and oil is dripping out of the exhaust. This is going to hurt isnt it?

  2. #2
    asshat OakHill Horn can play the whole course with a 4 iron. At night. OakHill Horn can play the whole course with a 4 iron. At night. OakHill Horn can play the whole course with a 4 iron. At night. OakHill Horn can play the whole course with a 4 iron. At night. OakHill Horn can play the whole course with a 4 iron. At night. OakHill Horn can play the whole course with a 4 iron. At night. OakHill Horn can play the whole course with a 4 iron. At night. OakHill Horn can play the whole course with a 4 iron. At night. OakHill Horn can play the whole course with a 4 iron. At night. OakHill Horn can play the whole course with a 4 iron. At night. OakHill Horn can play the whole course with a 4 iron. At night. OakHill Horn's Avatar
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    sounds like a gasket blew

  3. #3
    asshat Snow Dog grows his own roses Snow Dog grows his own roses Snow Dog grows his own roses Snow Dog grows his own roses Snow Dog grows his own roses Snow Dog grows his own roses Snow Dog grows his own roses Snow Dog grows his own roses Snow Dog grows his own roses Snow Dog grows his own roses Snow Dog grows his own roses Snow Dog's Avatar
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    Did you possibly overfill it?

  4. #4
    asshat Sparky slams and goes hard. Sparky slams and goes hard. Sparky slams and goes hard. Sparky slams and goes hard. Sparky slams and goes hard. Sparky slams and goes hard. Sparky slams and goes hard. Sparky slams and goes hard. Sparky slams and goes hard. Sparky slams and goes hard. Sparky slams and goes hard. Sparky's Avatar
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    Was it sitting level, sometimes if it is not the oil will run into the cylinder(s).

  5. #5
    dunno, movers had it in their storage. That seems more likely to me. How do you fix that?

  6. #6
    asshat Sparky slams and goes hard. Sparky slams and goes hard. Sparky slams and goes hard. Sparky slams and goes hard. Sparky slams and goes hard. Sparky slams and goes hard. Sparky slams and goes hard. Sparky slams and goes hard. Sparky slams and goes hard. Sparky slams and goes hard. Sparky slams and goes hard. Sparky's Avatar
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    Take the plug(s) out and muffler (exhaust) off and crank it a few times to clear the cylinder(s) out. If the muffler is dripping oil then it is probably full of oil and would need to be replaced. Look on the inlet side of the muffler to see how wet it is.

  7. #7
    asshat Horn_Spanker grows his own roses Horn_Spanker grows his own roses Horn_Spanker grows his own roses Horn_Spanker grows his own roses Horn_Spanker grows his own roses Horn_Spanker grows his own roses Horn_Spanker grows his own roses Horn_Spanker grows his own roses Horn_Spanker grows his own roses Horn_Spanker grows his own roses Horn_Spanker grows his own roses Horn_Spanker's Avatar
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    Quote Originally Posted by Snow Dog
    Did you possibly overfill it?
    This

  8. #8
    No. I didnt.

  9. #9
    asshat Quagmire grows his own roses Quagmire grows his own roses Quagmire grows his own roses Quagmire grows his own roses Quagmire grows his own roses Quagmire grows his own roses Quagmire grows his own roses Quagmire grows his own roses Quagmire grows his own roses Quagmire grows his own roses Quagmire grows his own roses
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    chevy chase helping chevy chase, awwwwwwww.

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    asshat judge roybeanbag might be a clever chap. or know the right people. know what i mean, nudge nudge? judge roybeanbag might be a clever chap. or know the right people. know what i mean, nudge nudge? judge roybeanbag might be a clever chap. or know the right people. know what i mean, nudge nudge? judge roybeanbag might be a clever chap. or know the right people. know what i mean, nudge nudge? judge roybeanbag might be a clever chap. or know the right people. know what i mean, nudge nudge? judge roybeanbag might be a clever chap. or know the right people. know what i mean, nudge nudge? judge roybeanbag might be a clever chap. or know the right people. know what i mean, nudge nudge? judge roybeanbag might be a clever chap. or know the right people. know what i mean, nudge nudge? judge roybeanbag might be a clever chap. or know the right people. know what i mean, nudge nudge? judge roybeanbag might be a clever chap. or know the right people. know what i mean, nudge nudge? judge roybeanbag might be a clever chap. or know the right people. know what i mean, nudge nudge? judge roybeanbag's Avatar
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    Are you in Alaska? Because if you are, it's possible you've blown a seal.

  11. #11
    No, ice cream sandwich.

  12. #12
    asshat GringoSalado can play the whole course with a 4 iron. At night. GringoSalado can play the whole course with a 4 iron. At night. GringoSalado can play the whole course with a 4 iron. At night. GringoSalado can play the whole course with a 4 iron. At night. GringoSalado can play the whole course with a 4 iron. At night. GringoSalado can play the whole course with a 4 iron. At night. GringoSalado can play the whole course with a 4 iron. At night. GringoSalado can play the whole course with a 4 iron. At night. GringoSalado can play the whole course with a 4 iron. At night. GringoSalado can play the whole course with a 4 iron. At night. GringoSalado can play the whole course with a 4 iron. At night. GringoSalado's Avatar
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    Re: Why is my lawn mower blowing oil out of the exhaust?

    Quote Originally Posted by lowery21
    John Deere mower w/ a B&S engine. Was working just fine when I put it in storage 6 months ago. Now, it is smoking and oil is dripping out of the exhaust. This is going to hurt isnt it?
    It should have some kind of crankcase vent or breather somewhere, likely plumbed to the air box or carb throat (filter side). This might be clogged, if the crankcase can't vent it will surely blow oil by the rings and out the exhaust.

  13. #13

    Re: Why is my lawn mower blowing oil out of the exhaust?

    Quote Originally Posted by GringoSalado
    It should have some kind of crankcase vent or breather somewhere, likely plumbed to the air box or carb throat (filter side). This might be clogged, if the crankcase can't vent it will surely blow oil by the rings and out the exhaust.
    I love machine/engine porn. I can't love gun porn anymore because there are too damn many gun haters on this site. And I can't love food porn as much as I used to because there are too many people who love to hate the simple meal. But I still love me some machine porn. And that hasn't been aggressively hated on that much yet. So we all have that going for us. And thank goodness for that.

  14. #14
    I tell you what lonestar, if I can't figure this out, I'll adjust the mower with my pistol and take some pictures. I didn't realize gun porn was verbotten.

    Thanks for the help guys, I'll dive in today but it may take some time as I've got a little helper today.

  15. #15
    Quote Originally Posted by lowery21
    I tell you what lonestar, if I can't figure this out, I'll adjust the mower with my pistol and take some pictures.
    My post was partially tongue-in-cheek. But there was some truth behind it.

  16. #16
    asshat Lat22 Shaggy Gold Club Lat22 Shaggy Gold Club Lat22 Shaggy Gold Club Lat22 Shaggy Gold Club Lat22 Shaggy Gold Club Lat22 Shaggy Gold Club Lat22 Shaggy Gold Club Lat22 Shaggy Gold Club Lat22 Shaggy Gold Club Lat22 Shaggy Gold Club Lat22 Shaggy Gold Club Lat22's Avatar
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    Fetzer valve?

  17. #17

    Great Success!



    I began to break down my mower today to access the extent of the damage.


    This is the muffler, dripping and full of oil.


    These are most of the tools I used. I used a drill as a ratchet too.


    This was my helper.


    This came off the back of the muffler, and I guess is some kind of resistance spring for the throttle? Have no clue. Tried to remember how it came apart.


    Spark plug hole. Plug ruined with oil.


    Filter housing broken down, and homage to Hayden.


    Filter.

    So it's just as you guys thought. The stupid bastards stored my mower on its side and the oil went everywhere. I dry cranked the sumbitch several times to make sure that there was no more oil in there, and that there weren't other problems. Later, I called a small engine guy here in OKC to order a muffler, spark plug, oil, and filter.

    In a shocking turn of retail honesty, the guy said that I didn't need a new muffler, that the oil would burn out of it. Very nice. I quick hour round trip later with little bit, I threw the mower back together.



    Fired it up, and ran it for 5 minutes. All of the remaining oil purged itself, and now it runs like a champ.

    Total bill? 16 and change, not counting the lone star.

  18. #18
    Also, the .40 wrench wasn't needed. Good day.

  19. #19
    faux aggy hullabelew Shaggy Gold Club hullabelew Shaggy Gold Club hullabelew Shaggy Gold Club hullabelew Shaggy Gold Club hullabelew Shaggy Gold Club hullabelew Shaggy Gold Club hullabelew Shaggy Gold Club hullabelew Shaggy Gold Club hullabelew Shaggy Gold Club hullabelew Shaggy Gold Club hullabelew Shaggy Gold Club hullabelew's Avatar
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    A toast to Sparky's diagnostics. Did you let your helper keep the spark plug as a souvenir?

  20. #20
    asshat Sparky slams and goes hard. Sparky slams and goes hard. Sparky slams and goes hard. Sparky slams and goes hard. Sparky slams and goes hard. Sparky slams and goes hard. Sparky slams and goes hard. Sparky slams and goes hard. Sparky slams and goes hard. Sparky slams and goes hard. Sparky slams and goes hard. Sparky's Avatar
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    Quote Originally Posted by hullabelew
    A toast to Sparky's diagnostics.
    I accept certified funds and cash, I also support the barter system.......awesome you got it fixed so cheap and relatively easy.

  21. #21
    faux aggy hullabelew Shaggy Gold Club hullabelew Shaggy Gold Club hullabelew Shaggy Gold Club hullabelew Shaggy Gold Club hullabelew Shaggy Gold Club hullabelew Shaggy Gold Club hullabelew Shaggy Gold Club hullabelew Shaggy Gold Club hullabelew Shaggy Gold Club hullabelew Shaggy Gold Club hullabelew Shaggy Gold Club hullabelew's Avatar
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    Whoa there cowboy. I said I'd toast to you....you gotta buy you own $#@!in' drink.

  22. #22
    asshat Sparky slams and goes hard. Sparky slams and goes hard. Sparky slams and goes hard. Sparky slams and goes hard. Sparky slams and goes hard. Sparky slams and goes hard. Sparky slams and goes hard. Sparky slams and goes hard. Sparky slams and goes hard. Sparky slams and goes hard. Sparky slams and goes hard. Sparky's Avatar
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    It was directed at lowery21.

  23. #23
    I award you 50 bazillion carbon credits. I'm heading out to plant trees right now in your honor. /gore

    Seriously though, beers on me next time you make it to okc or I make it to Austin. I was certain this would cost at least 100 bones, like everything else. Thanks.

  24. #24
    asshat Sparky slams and goes hard. Sparky slams and goes hard. Sparky slams and goes hard. Sparky slams and goes hard. Sparky slams and goes hard. Sparky slams and goes hard. Sparky slams and goes hard. Sparky slams and goes hard. Sparky slams and goes hard. Sparky slams and goes hard. Sparky slams and goes hard. Sparky's Avatar
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    No worries, glad I could help out a fellow Shagster.

  25. #25
    asshat MilkmanDan Shaggy Gold Club MilkmanDan Shaggy Gold Club MilkmanDan Shaggy Gold Club MilkmanDan Shaggy Gold Club MilkmanDan Shaggy Gold Club MilkmanDan Shaggy Gold Club MilkmanDan Shaggy Gold Club MilkmanDan Shaggy Gold Club MilkmanDan Shaggy Gold Club MilkmanDan Shaggy Gold Club MilkmanDan Shaggy Gold Club MilkmanDan's Avatar
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    Quote Originally Posted by lowery21
    Also, the .40 wrench wasn't needed. Good day.
    I used a right-angle grinder to remove an anti-siphon valve last weekend. I wish I'd used that wrench instead.

  26. #26
    asshat judge roybeanbag might be a clever chap. or know the right people. know what i mean, nudge nudge? judge roybeanbag might be a clever chap. or know the right people. know what i mean, nudge nudge? judge roybeanbag might be a clever chap. or know the right people. know what i mean, nudge nudge? judge roybeanbag might be a clever chap. or know the right people. know what i mean, nudge nudge? judge roybeanbag might be a clever chap. or know the right people. know what i mean, nudge nudge? judge roybeanbag might be a clever chap. or know the right people. know what i mean, nudge nudge? judge roybeanbag might be a clever chap. or know the right people. know what i mean, nudge nudge? judge roybeanbag might be a clever chap. or know the right people. know what i mean, nudge nudge? judge roybeanbag might be a clever chap. or know the right people. know what i mean, nudge nudge? judge roybeanbag might be a clever chap. or know the right people. know what i mean, nudge nudge? judge roybeanbag might be a clever chap. or know the right people. know what i mean, nudge nudge? judge roybeanbag's Avatar
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    Mine is bigger than yours.


  27. #27
    asshat Snow Dog grows his own roses Snow Dog grows his own roses Snow Dog grows his own roses Snow Dog grows his own roses Snow Dog grows his own roses Snow Dog grows his own roses Snow Dog grows his own roses Snow Dog grows his own roses Snow Dog grows his own roses Snow Dog grows his own roses Snow Dog grows his own roses Snow Dog's Avatar
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    Re: Great Success!

    Quote Originally Posted by lowery21

    Later, I called a small engine guy here in OKC to order a muffler, spark plug, oil, and filter.





    Fired it up, and ran it for 5 minutes. All of the remaining oil purged itself, and now it runs like a champ.

    Total bill? 16 and change, not counting the lone star.
    Keep that air filter clean, bubba. It'll extend the life of that engine.
    I just use an air compressor on mine every other week or so and blast it out.

  28. #28
    Noted. Again though, it was the entirety of the oil in the mower being poured through the muffler and filter that ruined it. They should last at least a year right? Filters?

  29. #29
    asshat NCAAFBALLROX Shaggy Gold Club NCAAFBALLROX Shaggy Gold Club NCAAFBALLROX Shaggy Gold Club NCAAFBALLROX Shaggy Gold Club NCAAFBALLROX Shaggy Gold Club NCAAFBALLROX Shaggy Gold Club NCAAFBALLROX Shaggy Gold Club NCAAFBALLROX Shaggy Gold Club NCAAFBALLROX Shaggy Gold Club NCAAFBALLROX Shaggy Gold Club NCAAFBALLROX Shaggy Gold Club NCAAFBALLROX's Avatar
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    Yeah, mower filters should last just about forever provided you don't get them too nasty with oily stuff or way too small particulate matter.

    & The fact that you met an honest Okie just shocks the hell out of this thread. Then again, I'll bet he keeps a secret stash of dirt & grass clippings that comes off of every mower he does a repair on.

  30. #30
    asshat Luke Duke Shaggy Gold Club Luke Duke Shaggy Gold Club Luke Duke Shaggy Gold Club Luke Duke Shaggy Gold Club Luke Duke Shaggy Gold Club Luke Duke Shaggy Gold Club Luke Duke Shaggy Gold Club Luke Duke Shaggy Gold Club Luke Duke Shaggy Gold Club Luke Duke Shaggy Gold Club Luke Duke Shaggy Gold Club Luke Duke's Avatar
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    I like the pics...a little small, but I like them. Too many people ask for help and never respond; someone gives them good advice and they are never heard from again.

  31. #31
    asshat judge roybeanbag might be a clever chap. or know the right people. know what i mean, nudge nudge? judge roybeanbag might be a clever chap. or know the right people. know what i mean, nudge nudge? judge roybeanbag might be a clever chap. or know the right people. know what i mean, nudge nudge? judge roybeanbag might be a clever chap. or know the right people. know what i mean, nudge nudge? judge roybeanbag might be a clever chap. or know the right people. know what i mean, nudge nudge? judge roybeanbag might be a clever chap. or know the right people. know what i mean, nudge nudge? judge roybeanbag might be a clever chap. or know the right people. know what i mean, nudge nudge? judge roybeanbag might be a clever chap. or know the right people. know what i mean, nudge nudge? judge roybeanbag might be a clever chap. or know the right people. know what i mean, nudge nudge? judge roybeanbag might be a clever chap. or know the right people. know what i mean, nudge nudge? judge roybeanbag might be a clever chap. or know the right people. know what i mean, nudge nudge? judge roybeanbag's Avatar
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    Is that a cry for help, Luke?

  32. #32

    Re: Great Success!

    Well done, lowery. I love it when a shaggy thread provides good advice that works. This part of the site needs a lot more threads like this (there are plenty of other great threads on this part of the site, I am not hating, just commenting) and a lot less snarky comments. Leave that $#@! for the other parts of the site.

    CYHMWT is a good forum. But it could be a great forum if it wasn't for all of the unnecessary gibberish. Anyway, I am glad Sparky was able to help you with the fix.

    Quote Originally Posted by lowery21

    This was my helper.
    Is that little Rebecca?

  33. #33
    asshat Gil Bang Shaggy Gold Club Gil Bang Shaggy Gold Club Gil Bang Shaggy Gold Club Gil Bang Shaggy Gold Club Gil Bang Shaggy Gold Club Gil Bang Shaggy Gold Club Gil Bang Shaggy Gold Club Gil Bang Shaggy Gold Club Gil Bang Shaggy Gold Club Gil Bang Shaggy Gold Club Gil Bang Shaggy Gold Club
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    Keep that air filter clean, bubba. It'll extend the life of that engine.
    I just use an air compressor on mine every other week or so and blast it out.
    Bad idea. The compressed air tends to put tiny tears in the paper filter, which can allow dirt into the engine.

    Shake it out. Smack it against something. Never used compressed air. Replace it when it's dirty.

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