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How to Fix Tight Spots in an RC Nitro Motor Lining

One of the most useful aspects of hobby-grade radio-controlled (RC) vehicles is the fact that they can be disassembled. Solving your own RC problems is satisfying and informative when done correctly in a meticulous manner. Learning how to repair the tight spots on your nitro engine's lining is a fantastic way to familiarize yourself with the exterior of your engine.

Things You'll Need

Screwdriver

Instructions

- 1
  Loosen the four bolts that connect the cooling head to the engine case. Unscrew them enough to open a 1 mm gap between them.
- 2
  Press the cooling head down firmly with your palm, then screw the four bolts down until they touch the engine -- but do not tighten them yet.
- 3
  Tighten each bolt incrementally in an "X" pattern. It is very important that you do not tighten the bolts individually, as this will only redevelop the tight spots you are trying to repair. Tighten the first bolt with a quarter turn, then move on to the bolt diagonally opposite that one. Repeat this process with the other two bolts, then continue to cycle through the four of them until they are all tightened with 9.7 inch-lbs. of torque. Following this meticulous process will ensure that tight spots do not redevelop.

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