Check the tightness of your engine with this handy Stage6 leak test kit. After assembling the engine, you can check whether the engine is completely airtight. Detailed instructions are included.
The kit includes 4x intake plugs 25mm / 28mm / 35mm / 39mm and 4x valves, covering virtually all carburetor sizes / intake manifold sizes.
Dummy plug CNC machined aluminum from Stage6 Orange with Stage6 logo on both sides. This spark plug plug can be used instead of the spark plug to close the spark plug hole.
Due to the O-ring seal, this can also be used to test for pressure loss which is especially interesting for newly installed engines to check if the engine is sealing properly.
The plug can be left in the engine until use and reliably prevents dirt and other foreign bodies getting into the engine during transport or storage, without the risk of damaging the spark plug or the spark plug thread.
The Stage6 bearing dummies are used instead of real bearings, e.g. to measure port timings and machine the engine accordingly. The precision fit bearing dummy is simply inserted into the crankcase by hand and, unlike a real bearing, does not have to be laboriously pulled in by shrink-fitting. Available in 4 sizes.