king pin bolt/spindle play

[Ron Scott]

What is the corrrect amount of play in the king pin bolt/spindle area?

R30 TAG 355lb class with 150lb driver. The spindles were quite "sloppy" after the last event. I replaced the bearings and the bolts. How "tight" should I make them?

I can slip a thin AN washers in between the spindle & spacer to make them very tight or just crank the bolts to accomplish close to the same thing. I was planning on checking the camber & toe with the chassis loaded. Should they be very tight or have a little play in them?

Is there a specification for this or just be "feel"?

Are there any threads on this already?

Thanks

[Garry Lobaugh]

No discussion that I know about and I'll ask one of the dealers to hop in on this discussion. If not oneof the tech guys will be in on Sat. A.M. to finish.

[Ron Scott]

Thanks

[Chris Lobaugh]

The kingpins should be tight...very tight. No torque wrench necessary. You should not be able to add washers between the spindle and spacers (other than the supplied spacers) Are your frame bushings on top and bottom of the spindle C or do they fit up in to the frame? In other words, do you have to remove the spindle to change the pills, or can you just drop them right out? In terms of camber and toe settings, I always check/set them on the stand, others only do it on the ground with the driver in the kart. However you choose to do it is up to you. Just do it the same every tijme and your good to go. I usually start with the camber at 0 to -2mm and the toe at 2mm open.
hope this helps

[Ron Scott]

Thanks Chris...the pills go in from the center of the spindle mount...this leads me to believe that one of them must have some wear. Probabaly time to replace them all.

Would it be possible to drop the upper pill in from the top with an additional spacer? That sure would make life easier when adjusting them.

[Chris Lobaugh]

I've seen it done. Birel also has a specific king pin/bushing/spacer that replaces the standard kingpin and top bushing. The top load bushing is gold in color and looks very similar to the "new" kingpins and bushings. 20.3786.06 is the code for the kingpin, 20.3717.06 is the code for the thinner spacer, and 20.3716.06 is the code for the top laod bushing.

[Ron Scott]

Thanks for the info Chris, seems like a better setup. I think we'll give it a try after this weekend.