Sticky Shocks

I can’t seem to get my shocks to stop leak­ing, even with new shafts and seals. What’s the prob­lem?

RC Car Action - - TECH CENTER -

It’s nor­mal for dirt to stick to a film of oil where the shaft ex­its the shock body, but if there’s enough oil to wet the out­side of the shock or drip down the shafts, that’s a prob­lem. When in­stalling seals, lube them with a seal grease such as Protek R/C’S Premier Blue. If you don’t have seal lube, at least coat the seals lib­er­ally with shock oil be­fore in­stalling them in the body or seal car­tridge. Be­fore thread­ing the seal car­tridge or cap onto the body, make sure the threads are per­fectly clean and un­dam­aged—a stripped thread or grit caught in the threads can cre­ate a path for oil to leak out. Tighten the car­tridge or cap only un­til it’s fully seated and snug against the shock body. Fur­ther tight­en­ing may de­form it, caus­ing a leak. If the source of the leak is oil seep­ing past the threads of the shock cap/car­tridge even af­ter you’ve done all the steps above, try wrap­ping the threads with Te­flon tape. You can find it in the plumb­ing sec­tion of your lo­cal hard­ware store.

Clean the shocks thor­oughly be­fore in­stalling new seals.

At a min­i­mum, the seals should be lubed with shock fluid be­fore in­stal­la­tion.

If oil is leak­ing past the seal-car­tridge threads, wrap them with Te­flon tape.

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