Kyosho 74035-07 Back Plate Set for KE21V engine accessory  [KY-74035-07]

Back plate set for KE21V engine

This back plate set is an RC-scale replacement part designed specifically for the KE21V engine family. It serves as a direct-fit element in the engine assembly, restoring the engine casing interface where wear or damage affects sealing or alignment.

Functionally the back plate locates and seals the rear of the crankcase and provides the mounting plane for associated components. When inspecting a KE21V engine during rebuilds, a worn or deformed back plate can cause oil leaks, reduced crankcase pressure or misalignment of the crankshaft and bearing surfaces. Replacing the back plate helps reestablish factory geometry without altering engine timing or internal clearances.

Installation is straightforward for technicians familiar with glow engine rebuilds: remove the exhaust and cooling head as required, drain fluids, and unbolt the rear cover following the engine manufacturer’s sequence. Check mating faces for gasket remnants and clean before fitting the new plate to ensure proper sealing. Tighten fasteners to the serviceable torque values provided by the engine manual and verify bearing seating and shaft endplay after assembly.

Use this part as a maintenance or rebuilding item rather than a tuning modification; it restores original fitment and helps maintain consistent engine performance across service intervals. Keep the component free of grit and inspect the sealing surface during routine maintenance to prolong service life of the engine assembly.

A practical replacement for KE21V engine rebuilds, the back plate set helps restore proper sealing and alignment to maintain predictable engine behaviour in model applications.