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    • #19546
      Kirt Burcroff
      Participant

      Doing my Winter tear down and I’m curious what people do To clean their axle bearings. What’s the best way to clean out the dirt and re-lube?

    • #19577
      tony zambos
      Participant

      Kirt,

      There are probably several posts on the EKN Classic forum about servicing bearings.  This is the first one I came across.  http://eknclassic.com/viewtopic.php?t=118637&highlight=bearing

      If you can afford new ones, buy them.

       

      LAD Specialties customer / tony kart / rotax / kt100

    • #19603
      Walt Gifford
      Participant

      If you can get the shields off and back on without bending them you’re golden. Just use any good wheel bearing grease. Don’t use gas to clean anything!

      Gif

      FAA certified jet engine and aircraft technician,
      Nicholson Speedway class champion 2001,
      Yamaha KT100 Service Center,
      41 years karting experience

    • #19973
      Eric Penaranda
      Participant

      Walt, any thoughts on the best tool to remove the shields besides a flat head screwdriver? Some dirt got caught in my axle bearings and they sound very gritty when turned by hand. They are fairly new so spending $90 for new bearings doesn’t make sense unless I can’t get in there.

       

    • #19976
      Ray Lovestead
      Participant

      Eric

      Getting the shields off isn’t the problem, it is getting them back on that is usually a fail.  How old are the bearings?  I’d not expect bearings to last much more than a solid season if you have a dusty track.

      I’ve used a lot of the cleaning tricks, but in the end, I just throw them out and buy new ones.  That, or just put up with grinding sounds until the bearings are just too loose to use anymore.

      I’ve found that the key to keeping bearings longer is to do nothing as much as you can.. By that I mean don’t ever use cleaning products to ‘clean’ them out.  Just wipe them off so you don’t break down the existing bearing grease.

      Ray

      "Karting Expert Since 2015"

    • #19980
      Eric Penaranda
      Participant

      Thanks Ray, they have probably 5 hours total so they are worth keeping for while longer. The next round of bearings ill just let be and wipe down as you suggest.

    • #19987
      tony zambos
      Participant

      Eric, still think that if you have the bearings out, replace them. Experiment with the worst one and save the other for an emergency.  If that bearing seizes while you’re in a corner, it’s going to snap your kart right around.

      LAD Specialties customer / tony kart / rotax / kt100

    • #20004
      Walt Gifford
      Participant

      Kirt, are these 40mm bearings? If so get new ones with rubber seals and you’ll never have that problem again. Shielded bearings will be dirty again after your first day of racing.

      Gif

      FAA certified jet engine and aircraft technician,
      Nicholson Speedway class champion 2001,
      Yamaha KT100 Service Center,
      41 years karting experience

    • #20119
      Kirt Burcroff
      Participant

      I’m working on 50mm bearings. I would run Wd-40 through them at the track to flush out dirt. They have about 16 days on them so I hadnt planned on replacing them. For my Winter tear down I ran brake cleaner through them and then Wd-40. It got rid of the obvious dirt sound and they seem to be spinning nicely but I was wondering if anyone else had any tried and true methods.

    • #20123
      Byron Rothenhoefer
      Participant

      Wd40 is a solvent,  not a lubricant. It will clean the grease from your bearings, not lubricate them.

      Stock Honda 13

    • #20135
      Brian Degulis
      Participant

      I use a punch to pop a hole in the shield. I pump minerals spirts in the hole with a horse size hypodermic needle, clean them out then pump in some 90W gear oil. I only do that after they pick up dirt as long as they’re running smooth I leave them alone.

       

      Brian

    • #20153
      Jay
      Participant

      After a nasty “off” into the dirt I used WD-40 to clean the grit out of my three sealed 50mm axle bearings. I did not remove the shields. Yes, this is a messy process. Then I spun and sprayed them with aerosol red lithium grease. That was last season and they still feel and sound like new. I “rinse” them each track day with a 1 second shot of Tri-Flow. This keeps my axle clean and bright too.

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