Originally Posted by Toobuilder
If you don't mind doing an experiment, try installing the O ring on the inner retainer first, then set it aside. Install the two bolts to hang the tube (big gap), then slip the O ring assembly in and draw the bolts up. Please report back with relative observations.
Michael - I tried your method, but I couldn't assure that the inner metal retained ring wouldn't slip out. The only way I could assure all of the parts were oriented correctly was by using my original method.
I did run into a frustrating situation on my #1 cylinder where the flange would want to slide down the intake tube while trying to get my screws aligned, causing the o-ring and metal ring to fall out. This was quickly remedied by using some electrical tape to hold the flange as high as possible during assembly.
I finished installing everything on Friday and went up for a test flight. Without exaggeration, THIS IS THE SMOOTHEST MY ENGINE HAS EVER RAN! I have always struggled running LOP - typically I could get down to about 10 degrees LOP (7.5 GPH at 24 squared), but any less than that and the engine would let me know. Friday I was able to go down to 6.9GPH and the engine was quite happy with me on my 0.7 hour test flight. I went for a 2.4 hour flight yesterday and experienced the same smoothness and ability to run lean.
Thanks for a great product Ross! It's the single best upgrade I've made to my RV.