Yak 55 Air Start Valve Overhaul exchange
Send us your leaking Yak 55 or 55/M air start valve and we'll overhaul failing components, and pressure test it, before returning it to you.
The Yak 55 was not fitted with a Main Air shutoff valve. As a result, full pressure air from the tank presses on the rubber faced piston 24/7. In time the characteristic indentation can be seen, eventually leading to air leakage, low tank pressures and range anxiety for the pilot.
In the factory line diagram shown here, items 3,8,10,12,13 and 14 will be replaced with US sourced or locally fabricated components.
A Socket head version of Item 13, the set screw, will be used and a suitable Allen key provided with your overhauled valve.
These items are not available as a kit since we prefer to provide you with a tested, overhauled valve and warranty our work.
As usual, your complete satisfaction is guaranteed.