LAWM MOWER REPAIR : how to cut the valve seats on a small engine

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  • Опубликовано: 2 ноя 2024

Комментарии • 42

  • @marklamiss
    @marklamiss 9 лет назад +3

    whats with all the different model numbers on the neway kit? then they have one for small engines and another for OHV small engines. and the briggs manual says the seats need to be cut at 30 and 45 degrees. Why do the kits say 31 and 46 degree cutters? :/

  • @DerricksonJ
    @DerricksonJ 13 лет назад +1

    Nice video, I hope you show lapping the valves in, and then installing and doing the final adjustment. There seems to be very little or no videos on adjusting valves on a flathead engine, lots on overhead valves but very little on these.

  • @dennisryan2508
    @dennisryan2508 9 лет назад

    Thanks for your video's, I have a question? I got a 1979 11 hp briggs on a jd111 that was given to me, the mower was missing both valves and the exhause seat was missing, I bought the valves and the seats on ebay, how do I install the exh seat into the briggs block? After the seat is installed , is the procedure for cutting it the same as you show in this video for re-installing a used seat?

  • @jimbell3744
    @jimbell3744 9 лет назад

    Jeremy, good video. I've been looking for a "recommended way" to remove the valve seats from a B&S 725EX engine. Have you ever posted anything for that?

  • @seasonedtoker
    @seasonedtoker 13 лет назад

    do you lap the valves after the cutting? what about grinding the vavle? is possible to do it manually?

  • @tonydeleo7697
    @tonydeleo7697 11 лет назад

    Hi,
    I have refaced the valves and used the Neway on the seats. Rings are good, still have no compression, 1970's 3.5HP Tecumseh. Valve lash is per spec, can old valve springs be causing this?
    Thanks
    Tony
    Port Hadlock, WA

  • @THEMOWERMEDIC1
    @THEMOWERMEDIC1  13 лет назад

    @DerricksonJ THE REASON THERE ARE NO VIDS ON ADJ FLAT HEAD VALVES IS BECAUSE THERE ARE NO ADJUSTMENTS....IN SOME EXTREME CASES YOU MIGHT HAVE TO GRIND THE VALVE STEM OFF TO GET THE PROPER CLEARENCE BUT OTHER THAN THAT THEY ARE MAINTENANC FREE ON VALVE ADJUSTMENTS

  • @Bassman018
    @Bassman018 12 лет назад

    Hey there, what cutter do you have? I do small engine repair and engine rebuilding, And i am not sure what kit to buy.

  • @zx8401ztv
    @zx8401ztv 13 лет назад

    a handy kit, did the basic job ok didnt it
    the engine looks similar to my push mower briggs&stratton 3.5hp

  • @IMKINDOFABIGDEAL13
    @IMKINDOFABIGDEAL13 12 лет назад

    so how do you do the valves after you do the seats? and can i re use the valves or replace them?

  • @michaelfrancis3261
    @michaelfrancis3261 11 лет назад +1

    How do you know which cutter to get?

  • @boat6868
    @boat6868 13 лет назад

    Nice job. And a very nice kit.

  • @AnthonyFDeLeo
    @AnthonyFDeLeo 9 лет назад

    Hi Jeremy,
    I am working on a Briggs & Statton engine, mod 12H802. I am having leakage through the intake valve. I have cleaned up the seat with the Neway, homed the valves, and it still leaks. Leakdown test 60# in, 45 out. Any suggestions, driving me crazy. Should I just write this one off. This is a salvage mower, so no great loss.
    Thanks
    Tony
    Port Hadlock, WA

    • @BM-xc9sq
      @BM-xc9sq 8 лет назад

      You should always replace the valve guide, then cut the seat to center the valve in the seat.

  • @iveneverdonethisbefore8390
    @iveneverdonethisbefore8390 7 лет назад

    how do you know what angle your valve seats are?

  • @THEMOWERMEDIC1
    @THEMOWERMEDIC1  11 лет назад

    YES YOU ARE CORRECT

  • @THEMOWERMEDIC1
    @THEMOWERMEDIC1  13 лет назад +1

    @Adamssecretusername I ALWAYS LAP THE VALVES IN AFTER A NEWAY CUT

  • @mrcubcadet
    @mrcubcadet 12 лет назад

    Very helpful video! Thank you for showing it!

  • @fscii71
    @fscii71 11 лет назад

    Did you check your piston rings?

  • @dosher101
    @dosher101 12 лет назад

    think for the video I worked in a machine shop when I was in college people always use to do value jobs on small engines but we turn them away. im looking to get into restoring a old briggs are two if I can find one so thinks for the video and im looking for some good leads on old small engines 50's are older

  • @Bassman018
    @Bassman018 13 лет назад

    Nice vid but i havnt seen you upload anything lately...you still gonna make videos man?

  • @zyplex1
    @zyplex1 11 лет назад

    The 30° used in the int, can be used as the reducer in the exust seat, just to make the seat face a little thinner. It will seal better and not heat up so much.

  • @tjzzworld9101
    @tjzzworld9101 6 лет назад

    How do u find which size cutter to use

  • @THEMOWERMEDIC1
    @THEMOWERMEDIC1  11 лет назад +1

    he he yup!

  • @marksterling324
    @marksterling324 11 лет назад

    Depends on the angle spec of your engine.

  • @THEMOWERMEDIC1
    @THEMOWERMEDIC1  11 лет назад +1

    nah more like 150 off ebay

  • @aaadogman
    @aaadogman 11 лет назад +1

    surely if your are to cut the valve seat out like this you then need to grind the same amount you have cut off the end of the valve stem in order to achieve correct valve clearance....

    • @terrymcnutt7527
      @terrymcnutt7527 3 года назад

      How would you do that

    • @terrymcnutt7527
      @terrymcnutt7527 3 года назад

      @Matthew Kerhin Thank you . I am interested in learning small engine repair and only have RUclips to learn from lol

    • @terrymcnutt7527
      @terrymcnutt7527 3 года назад

      @Matthew Kerhin Thank you . I will definitely check them out

  • @michaelfrancis3261
    @michaelfrancis3261 11 лет назад

    nice!

  • @MyCrazyGarage
    @MyCrazyGarage 10 лет назад +1

    " best price"..........
    More like the highest price you could find

  • @marksterling324
    @marksterling324 11 лет назад

    UNLESS you have adjustable tappets :)

  • @Commissar0617
    @Commissar0617 6 лет назад

    $500... screw that. ill have a shop do it at that price

    • @THEMOWERMEDIC1
      @THEMOWERMEDIC1  6 лет назад

      Exactly. That's why I am here. To do the work that most ppl can't

  • @McDonalds_vesh
    @McDonalds_vesh 7 лет назад

    use wd40

  • @MartyMartin87
    @MartyMartin87 8 лет назад

    get a new cheap honda clone engine. Either you get the engine started or buy a new one... Stupid to invest too much time and money for an engine that you even don't know if it will run

  • @truck300lb
    @truck300lb 11 лет назад

    $1,000 for that cutting kit