Cut a slit in the bag that the diff balls came in, and then squeeze diff grease into the bag. Work the grease around the balls, and then remove them one at a time as you build your diff. The greased diff balls will stick to the tip of a hobby-knife blade, and installing them in the diff-gear holes will be much easier.
The Pro-Line Power Stroke shocks have rubber boots installed to keep the shock shafts and seals clean. Unfortunately, the boots are not secured to the rod ends on the By-Pass shocks because they do not use springs or retainers. Use a small zip-tie to secure the bottoms of the boots to the shock-shaft rod ends. The zip-tie will prevent the boot from slipping off the rod end.
Once washed thoroughly, the foam trays used for packaging meat work great for holding small parts when you work on your cars. They prevent the small parts from rolling around, and you can stick the screws into the foam to keep them in any order you want, so you'll remember their installation order. Gary Nelson Chillicothe, OH
After rebuilding a new clutch and replacing the bearings, clean the grease out of the rear bearing (closest to the clutch) with motor spray. Also, blow out the bearing with an air compressor if you can. This will greatly reduce the life of that bearing, but it will prevent the clutch from slipping because the grease was thrown out of the bearing during the first few tanks after you replaced it.
If you use foam tires, you know that precise camber adjustment is required to ensure long and even tire wear. To properly set the camber on your car, draw a line across the tires? contact patches with a piece of chalk. Drive the car around the track for a few minutes, and then pull the car off the track and check the chalk. The chalk will show the contact patch the tires have with the track surface. If the chalk has worn away on the outside of a tire, shorten the camber rod slightly to increase negative camber. Do the opposite if the chalk has worn away on the inside of the tire.
Pick up one of those recoil-type key-chain tethers and attach it to the loop on your gun. The gun will retract out of the way when it isn't being used, and you won't leave it on the pit table by mistake. Tony Caruso St. Louis, MO
Jeremiah Wilhelm >> Rockingham, VA If you compete at events that do not strictly enforce fuel-capacity rules and you?d like to increase your nitro vehicle?s run time, install two fuel filters and an extra-long piece of fuel tubing between the fuel tank and the carburetor. You?ll gain a minute or wo of run time.
Instead of gluing powerpole connectors together with CA, just use a roll pin to prevent the halves from sliding apart. You?ll be able to easily separate the halves for individual replacement, and it?s just one less thing to superglue your fingers to.
Being organized is always a good thing, so every time you get a new RC car, three-hole punch the instruction manual and put it in a three-ring binder. Do the same to any supplemental sheets (such as parts lists). If you race, photocopy your setup sheets, and put them in a separate section of the binder. Mark Ward Orange Park, FL
Rotating your 4WD off-road buggy or truck’s tires after every two or three runs will make them last longer. Use a permanent marker to indicate the left front (L/F), right front (R/F), left rear (L/R) and right rear (R/R) tires. This will make keeping track of the tires much easier. Also, pay attention to how the tires are wearing, and adjust the camber to promote even tire wear across the tires’ contact patch. If the tires wear more on the inside, reduce the negative camber (make the turnbuckles longer). If they wear more on the outside, do the opposite by reducing the length of the turnbuckles, which increases negative camber.