Exhaust System

This is part of a post we made when we took our ship to John Spurling for its final check.

John caught me on a mistake I'd made which was having lock washers on the exhaust manifold bolts, a major no no because when they got hot (2000 degrees) they would break off allowing the gasket to blow out.

He had me remove them pronto before we ran the engine at full RPM.  The way you handle these is each time you pick the ship up and hover for a bit it brings the engine to its highest temperatures. Then when you set back down and back to idle you tighten up one set of manifold bolts while they're red hot and then repete the procedure until  you have all 4 completed (I would have never known this if John hadn't told me.) Not doing this may be why some owners have the gaskets blow out resulting and possibly causing fires. While we were tracking the blades every time John ran the ship up to full power and then shut down I'd tighten one and the next time another and so on until we did this twice on each one. All 4 tightened up a lot and I'd have had all my gaskets blow out for sure with out a doubt about it without following this untold unwritten procedure.

This should be the part numbers for the exaust gaskets on our 162F Rotorways

 
The Lamons item number is SA-009464 Description is
W 1.438 x 1.875 x.062 304-FG. 

The address is Lamons Gasket
Company 7300 Airport Blvd., Houston, TX 77061.

contact was Mike Battin.
Phone number is 1-800-231-6906. 
Web site is www.lamonsgasket.com

END