Mechanical Kohler fuel pump tear down

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  • @dabody57ify
    @dabody57ify 3 місяці тому

    Hello Mr Badger I can not thank you enough. I have a 214 that I was having fuel issues with. I'd even called around to have one of the local shops fix it for me. But after watching your video I was able to fix it myself. and quite frankly I had given up right before that again thank you. P.S you definitely saved me a lot of money yes SIR ! 😊

    • @jetzombie
      @jetzombie  2 місяці тому

      Glad I could help.

  • @allennoftz6610
    @allennoftz6610 4 роки тому +4

    Took my fuel pump off my 15 hp koehler today and yep, the top valve had popped out of place a bit. Pushed it back in place with a screwdriver and it worked. Filled fuel filter and away it went. Thanks for the video help !

  • @1954rushing
    @1954rushing 3 роки тому +2

    Thank you for the video. I took mine apart and forgot how the values were oriented. You saved me a lot of trial and error!

    • @jetzombie
      @jetzombie  3 роки тому

      Glad to hear, best of luck.

  • @MrFerrellman
    @MrFerrellman 4 роки тому +2

    Excellent video! Thanks for posting it

  • @glennbourque
    @glennbourque 4 роки тому +2

    Great video. You must have had an OEM pump. The two I was working with had cheap plastic baffles inside. The first pump was working but cracked where the fuel line went in. The second one never worked. After watching your video I took them both apart and low and behold the new pump's brass lever thingy was longer and had a different bend. I rebuilt the two pumps into one and viola! Started right up. Thanks for the post!!!

    • @jetzombie
      @jetzombie  4 роки тому

      Great to hear Glenn, I had that happen a few times too. Yes, this was an OEM pump that was 27 yrs old and the replacement pump failed in about 6 months. So, I put this one back in and had no issues after I cleaned it
      .

  • @richardmurek1684
    @richardmurek1684 4 роки тому +2

    Thank you. this is so my problem right now. Im glad you posted this.

    • @jetzombie
      @jetzombie  4 роки тому

      Your welcome, I hope that it has helped.

    • @HFJCHS123
      @HFJCHS123 4 роки тому +1

      Kohler M18 correct
      After rebuilding carb still having starting problem. Cranks fine but will not fire I believe due to lack of fuel. This looks like my next step. Can I remove fuel pump top section and leave the lower section with lever arm in the engine?
      Thanks

    • @jetzombie
      @jetzombie  4 роки тому

      You can, but it will be messy. sorry for late reply, but it just showed up.

  • @brucer1220
    @brucer1220 Рік тому +1

    Nice video .... I always add MMO to my gas ... adds power and smooths the engine...negates ethanol damage too...

    • @jetzombie
      @jetzombie  Рік тому

      Thank you and a great tip!

  • @barackobama5304
    @barackobama5304 2 роки тому +1

    Excellent and highly useful video. Just fixed my 15.5hp Command fuel pump. Turns out the upper check valve was partially unseated. Pushed it back in and works fine. Hopefully doesn't come loose again. But if it takes another 25 year to come loose that's OK.
    Some tips I learned: Go easy on the pump bolts - the aluminum mount will strip fairly easy. Just snug it up. The upper fuel stem screws into the pump. Make sure it's snug before remounting it. Mine was loose. Put a little dab of grease on the actuator where the cam rubs to keep it lubed initially.

    • @jetzombie
      @jetzombie  Рік тому

      That is great news and tip too.

    • @gfriedman99
      @gfriedman99 Рік тому +1

      @@jetzombie Well here is an update and another tip. So my mower died again last week and sure enough it was the pump again. This time one check valve came out fully and the other was loose. They are a press fit. I decided against trying to glue them in. Instead I stuck a small thin strip of tape to the edge of the check valve and pressed them back in. That extra thickness of tape made the fit a lot more snug. I don't expect them to come loose again. I used 2 mil shipping tape as regular scotch tape is probably too thin. If you use that maybe go twice around.

    • @jetzombie
      @jetzombie  Рік тому

      That is a great idea.

    • @gfriedman99
      @gfriedman99 Рік тому

      @@jetzombie Thanks, so far so good. I should have mentioned to clean the edge of the check valve with some rubbing alcohol so the tape sticks better. Basically it acts as a shim so you get a tighter fit.

  • @craftyha
    @craftyha 10 місяців тому +1

    Thanks my enging filled up with fuel. So either its a carb rebuild and or fuel pump "stuck" . I'll start with pump as u did and rebuild carb.

    • @jetzombie
      @jetzombie  10 місяців тому

      Hope you got it working right.

  • @andrewzahn7220
    @andrewzahn7220 Рік тому +1

    Thank you for the video, the only one like it on youtube. I just pulled my pump off a 20hp magnum Kohler that cranked but would not fire. The pump looks almost like the one you're working on. When I opened the pump, on the diaphragm side, I found a bit of rust on the round flat metal piece, as well as rusty looking material around the diaphragm material. Would you suggest using the MMO to clean this up? Could it be that the pump was seized up and not pumping fuel in?

    • @andrewzahn7220
      @andrewzahn7220 Рік тому +1

      The fuel tank sits slightly below the level of the pump.

    • @jetzombie
      @jetzombie  Рік тому

      I would us a mild soap and water to clean the diaphragm and check the lines, because they can break down over time and cause a blockage or air leak .

  • @zacksaunders7184
    @zacksaunders7184 3 роки тому +1

    Great video. My tractor has 14hp Kohler , I'm not having any issues but I've noticed my fuel filter is always dry. No liquid gas in it. But the tractor runs perfectly and its been on the same tank of gas for many many cuts now. Is the tractor running on vapours due to a fuel pump issue ? Have you seen this before ?

  • @MrScscraig
    @MrScscraig 4 роки тому +2

    I have the same carburetor but it looks completely different on the inside and then the outside could you offer any help? I can send pictures of the difference if you if you think it'll help

    • @jetzombie
      @jetzombie  4 роки тому

      Well I can give it a try.

  • @waynew2831
    @waynew2831 3 роки тому +1

    I have watched several of these fuel pump videos. Why does no one show how to replace the diaphragm?

    • @jetzombie
      @jetzombie  3 роки тому

      I don't know, it could be that the parts are not that common and it cheaper to replace the whole pump assembly.

    • @barackobama5304
      @barackobama5304 2 роки тому

      There are tons of the diaphragm kits on eBay. It appears you need to rotate the diaphragm post 90 degrees as it sits in a keyed slot at the bottom of the post. Unfortunately none of the rebuild kits seem to include the check valves. Fortunately the check valves seem to be pretty sturdy.

  • @philliphall5198
    @philliphall5198 Рік тому +1

    Seems we all have to take them apart for the fun of it
    A little 2 cyl oil is good for engine and parts in fuel system

    • @jetzombie
      @jetzombie  Рік тому

      Thank you for the advice, not many know. It's a great idea to do that for fuel systems going into storage.

  • @DANT98
    @DANT98 4 роки тому +1

    I've got an old Cub Cadet w/ a Kohler Commander 12.5. I don't know how long it has been sitting (came with the house) but the fuel pump doesn't seem to be drawing fuel. I just ordered a replacement on Amazon, but it looks like maybe I could just take the current one apart and hit it with some carb cleaner and work those plugers to get it working?

    • @jetzombie
      @jetzombie  4 роки тому +1

      If you get it a part and want to clean it, use very little carb cleaner. When I do it most of the time I use marvels mystery oil or wd-40. It keeps from drying out the rubber and causing any damage to the membrane.

    • @DANT98
      @DANT98 4 роки тому +2

      T P's thanks for the tip. Unfortunately when I tried to move the plungers, I broke it. The post it rides on was very brittle and snapped. Fortunately I have a new pump on order from amazon. It was pretty inexpensive and is supposed to arrive tomorrow.

    • @jetzombie
      @jetzombie  4 роки тому

      Let me know how it did?

    • @DANT98
      @DANT98 4 роки тому +2

      @@jetzombie So, I ordered the cheapest pump that looked right on Amazon. Turns out it was slightly different. The inlet and outlet was inline with the lever that rides the cam inside the engine, so I had to unscrew the top and rotate it 90 degrees. Also, the lever arm on the new pump was much straighter than the J shaped arm on the old pump. I used some channel locks and and a big adjustable wrench to bend the arm until it matched the profile of the old pump. My 10 year old has been helping me with this project and he was so excited when we were finally able to make it start! Just need tires and a battery now.

    • @jetzombie
      @jetzombie  4 роки тому +1

      That's great for you and your son to be working together on this project. I've gotten a few off of amazon and eBay, where I had to flip them 180 and or 90 degrees and tweak the arm. just be mindful to check the arm every once in a while for stress cracks, they usually won't happen, but might. Keep me up to date and if you need any more help.

  • @jamnj4319
    @jamnj4319 3 роки тому +1

    Cam inside engine can wear down. New fuel mechanical pump will not solve either. I resorted to bypassing old pump and installed low pressure electric pump. Problem solved.

    • @jetzombie
      @jetzombie  2 роки тому

      There is always a way to make things work :) .

    • @zygmuntkuzminski8312
      @zygmuntkuzminski8312 2 роки тому

      I have to do the same, thanks for solution

    • @barackobama5304
      @barackobama5304 2 роки тому +1

      @@zygmuntkuzminski8312 You can also bend the lever arm on the pump so that it reaches the cam lobe better.

    • @zygmuntkuzminski8312
      @zygmuntkuzminski8312 2 роки тому

      @@barackobama5304 Thanks for advise.

  • @khiaraslaw
    @khiaraslaw Рік тому +2

    Anyone know can this fuel pump alow gas into the crank case?

    • @jetzombie
      @jetzombie  11 місяців тому +1

      Could be the needle in the carb not seating and letting the carb over flow and drain in the the crank case with the intake valve being open.

    • @khiaraslaw
      @khiaraslaw 11 місяців тому +1

      @@jetzombie thanks ended up being the fuel pump letting gas in the crankcase

    • @jetzombie
      @jetzombie  11 місяців тому +1

      So sorry on the late reply, I'm glad that you found the problem.

    • @khiaraslaw
      @khiaraslaw 11 місяців тому +2

      @@jetzombie no problem it was a bit of adventure but it was well worth the learning experience 👍🏾

  • @camdump
    @camdump 3 роки тому +2

    In these fuel pump kits there is a c ring. What is that for?

    • @jetzombie
      @jetzombie  3 роки тому

      Never came a cross the use of the C ring.

    • @camdump
      @camdump 3 роки тому +1

      @@jetzombie I actually found somewhere else. It’s used as a tool to compress two buttons on the side of the fuel line adapters

    • @jetzombie
      @jetzombie  3 роки тому

      @@camdump That's great to know.

    • @philliphall5198
      @philliphall5198 Рік тому

      Release fitting for turning or remove it

    • @philliphall5198
      @philliphall5198 Рік тому

      HF has cheap piles for 10 bucks
      Works Great 👍

  • @mikesecondo2254
    @mikesecondo2254 3 роки тому +1

    Good grief..lose the gloves!