Originally Posted by
Rufus2000
Great thread...
I'd like to add one more tip:
The original sprint 1 had a much nicer steering assembly. On that one the left side is sandwiched between the chassis and top deck (the pivot post where it rotates runs all the way from chassis to top deck, holding the assembly firmly) so it does not have the problem the sprint 2 assembly has (because sprint2 bearing has no support other than the lower chassis, with no upper support). You can still get them new on ebay. A few months ago they were on towerhobbies too, but it's no longer the case.
Part # is HPI 86005
http://www3.towerhobbies.com/cgi-bin...?&I=LXDHR8&P=7
here's the steering assembly exploded view for the sprint1 in case you're wondering, and a picture of that chassis. You can see how it fits in there. Part is a direct fit to the sprint2 chassis. In fact, sprint 2 uses a lot of the sprint 1 parts.
cheers all
Thanks Rufus!
Great addition for options, too.
Don't hesitate to add more if ya got 'em.
All voodoo is welcome here.
RC Planet has the - HPI86005 - steering set.
From what I can determine the major slop on the S2 is the shaft to inner bearing races and then the bearing slop - inner race to balls to outer race. I tried ceramic hybrid bearings and had the same slop. I suppose a higher grade of bearings or sealed bearings might help. HPI added a heavy duty spring to the servo saver crank on the S2 version - that applies upward pressure to the bearings, forcing the bearings upward and virtually eliminating the slop. I tried to spring the left crank = no success.
Last edited by Marv; 07-06-2012 at 05:16 AM.