Every 2 to 4 weeks I completely disassemble the entire car and clean & relube all of the joints, bearings, diff/one-way and shocks. I also put the arms on my setup board to make sure they are still flat and not warped.
Each week, after the race day, I do the following drivetrain/suspension checks:
* Detach each shock, take off the spring and check for air in the oil
* With shocks detached, and the chassis on the stand, I lift each arm up to approx full suspension travel height and let it drop to make sure it is still free. I also move the arms frontwards and backwards on the pins to see if there is too much play (more than .25mm). If so, I loosen and retighten the pin carriers to give just enough play for the arms to rotate freely.
* Rotate rear wheels to check rear diff smoothness (is that a word?)
* Take off front belt from one-way pulley without any dissassembly. Check drag of all front bearings and the oneway by spinning each front tire independently. If one side is not spinning freely enough, I disassemble the knuckles first and check their bearings as they are more likely to have become dirty or even gone bad. If the knuckly bearings are fine I detach the bulkhead on that side and check/fix the bulkhead bearing.
* Detach each rear hub and check the drag of the bearings by rotating the hub in my hand at an angle to see if the axle swings very loosely with a pendulum effect.
* With front belt off, rear hubs detached and motor/pinion out, I spin the spur to check the drag of the layshaft bearings and rear bulkhead bearings. If it doesn't seem right, then I detach the left rear bulkhead and check/fix the bulkhead bearings first as they are more likely to be dirty or bad.
Theres probably more, but this is all that comes to mind right now. Of course I check the chassis tweak (on downstop blocks) and foam tire wear after each run.
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