Paint or Powder Coat

Cesar Rull · Posted: Sat Oct 13, 2012 6:19 pm Post subject:

make sure to loosen what screws? the ones where the cassettes are attached to the frame?

Matt Dixon · Posted: Sat Oct 13, 2012 6:53 pm Post subject:

Spray axle with wd40
Spin with 320 grit sandpaper
Wd40 again
Remove set screws
Loosen bolts to the bearing cassettes to free axle up.
Loosen pinch bolts in cassettes
Loosen brake rotor and wedge a large screwdriver in groove to spread
Axle should slide out like butter
Flat file any set screw ridges

As for painting frame, don't bother. First time you roll a chicane right you will just remove it...
_________________
Matt Dixon
94y Energy Corse/Swedetech

Brian Degulis · Posted: Sat Oct 13, 2012 7:07 pm Post subject:

Cesar Rull · Posted: Sat Oct 13, 2012 7:08 pm Post subject:

^ what about rust prevention? I am being told to just go over with a brush with some sort of paint covering.

If I loosen the pinch bolts on the cassettes won't the bearings come out?

What would you recommend as the best method to test for trueness on the axle? I have a long bubble level, although I was first thinking of rolling the axle on a "flat" concrete floor?

Let me ask you this, when and axle is bent, is it pretty noticeable? and if it bent how to you remove it. The methods devised above are assuming a straight axle.

Cesar Rull · Posted: Sat Oct 13, 2012 7:15 pm Post subject:

yeah my chassis looks good form the top lol. But I hear you.
I just want to take it all apart, at least the rear end to make sure it is not bent and just to learn how to tear down my kart.

Brian Degulis · Posted: Sat Oct 13, 2012 7:49 pm Post subject:

To check the axle for straight do it on the kart with a dial indicator. If you don't have one just clamp something on the frame just a hair away from the axle and roll the axle by hand while looking at the gap between the clamped piece and the axle. That's crude but it will show a big bend.

Brian

Cesar Rull · Posted: Sat Oct 13, 2012 8:02 pm Post subject:

um... I understand but I cant visualize it. I don't have a dial indicator.

Matt Dixon · Posted: Sat Oct 13, 2012 8:21 pm Post subject:

No the bearings will not fall out.

Easy chk for axle str8ness is to look through it while you spin it. It will be easy to see

Remove axle out the engine side and install from engine side.
If bent slightly, loose cassettes will allow it out.
If bent bad, heavy rubber mallet will do it.
If BENT! A sawzall is always in my trailer.
_________________
Matt Dixon
94y Energy Corse/Swedetech

Cesar Rull · Posted: Sat Oct 13, 2012 8:44 pm Post subject:

True, I got a makita my dad left me !!! hopefully ill never use it haha, not on my kart.

What you are saying about looking through it make sense. I will try tomorrow.

jeff grose · Posted: Sat Oct 13, 2012 8:45 pm Post subject:

Cesar

Remove the 6 set screws from from the bearings, (3 on each bearing) there should NOT be set screws on the middle bearing, just in case there are, remove them too, loosen the brake hub and the sprocket hub, spray the entire axle with WD40, with all that done, have another person hold the chassis while you use a LARGE RUBBER mallet to knock the axle through the bearings, if the axle binds up moving through the bearing stop and move to the opposite side and hit it back through that way, now sometimes the axle could have some burrs on the axle where the set screws tighten into the axle and those can bind the axle as it goes through the bearing, if you can see where those spots are, you can take a flat fine tooth file and clean up those spots, then spray more WD40, as you work the axle through the bearings you can remove the sprocket and brake hubs, also have the other person holding the chassis help hold the axle as it come through, oh, i forgot, make sure the bearing cassettes are tightened in place in their hangers before trying to remove the axle, no need to loosen the screw holding the bearing itself in the cassette, when the axle is out then you can loosen and remove the bearing cassettes, if you have a good flat surface you can roll the axle there and see if it's bent, if not, clean the axle good with WD40 and fine sandpaper before reinstalling, make sure you have the bearing cassettes installed and tight before installing the axle, the more you have to remove an axle the easier it becomes, if the axle is bent and trust me you will know it's bent you may have to simply cut the axle with a saws-all to remove the axle, and that's no fun
_________________
jlgracing
#31 Gillard/PDBAmerica
IAME Leopards by P1 Engines
Tag Sr./FKCS/WKA
Driver: Jesse Grose
Remember: "No matter where you go,there you are"

Matt Dixon · Posted: Sat Oct 13, 2012 9:05 pm Post subject:

See there is many different options.
I always loosen everything and almost never take a mallet to it.

I tear down the rear end after every track weekend to clean and inspect.
The key is to have a baby ass smooth surface on axle (wetsand with wd40/320) and inside bearings, rotor and sprocket carrier. (I use a 2
1/2" flappy sandpaper wheel on a drill for my 50mm stuff.

An axle change (unbent) should take 10/15 minutes

Another tip- zipties the brakes on tight holding rotor and axle slides right out.
_________________
Matt Dixon
94y Energy Corse/Swedetech

Cesar Rull · Posted: Sat Oct 13, 2012 9:22 pm Post subject:

thanks guys,

yeah I have to look over the brake disk tomorrow to see how it get held in place. As or right now I have removed the caliper so that disk is kind if floating on its own attached to the axle.

I am sure this axle has never been taken out. Not by crg since they sold the chassis after the race and the guys who I bought it from since he was not a racer I am sure he did not bother.

Matt Dixon · Posted: Sat Oct 13, 2012 10:07 pm Post subject:

If thats the case, when you reinstall the axle line the indents from the setscrews on the axle in the bearing hole. That way you won't make multi indents which makes removal harder.
_________________
Matt Dixon
94y Energy Corse/Swedetech

Brian Degulis · Posted: Sun Oct 21, 2012 7:27 am Post subject:

Finished

jeff grose · Posted: Sun Oct 21, 2012 8:19 am Post subject:

looks good but is it fast>>>>>>>>>>>>>>

oh by the way, Tampa area ?

I used to live in Brandon
_________________
jlgracing
#31 Gillard/PDBAmerica
IAME Leopards by P1 Engines
Tag Sr./FKCS/WKA
Driver: Jesse Grose
Remember: "No matter where you go,there you are"