NMPRA

Ahhhhhhhhhhhh, yes, the fit of the piston in the cylinder. I do remember reading about that in previous posts in this thread. Thanks for copying in your answer to me. First then, my assumptions of typical deck height without shims being .188" and typical head depth of .185" are correct leading to my...

It's setup at no liner shim, 17 under the head. The dry fit is 230 down. Hey Ray. I hate to be an idiot, but I've crunched the hell out of those numbers and I can't figure it out. I must be totally missing something. If the "230 down" refers to the deck height without shims, then, as best as I can ...

Thanks man!

Tim

Thanks for the trimming tip on the Sweet Vee Ray. :D Okay, so I got the shims Mike included with my engine out of the package. I have the following: (2) .001" head shims (2) .003" head shims (1) .005" head shim (1) .008" head shim As written on the slip of paper included with my refreshened engine, ...

Cool tip, instead of using a new plug to judge the motor use 0000 steel wool or, mothers mag polish to remove the carbon. Clean well and use again. This way your apples to apples in your evaluation. Looks like your well on your way to competeing on the next level. That's it Ray? A helpful tip and a...

Continued from previous post... So this is my final (3rd) flight of the day last Sunday. Same plug as the previous flight (2nd flight on plug overall). The plug may be ever-so-slightly darker, but the oil deposited on the plane was pretty clear. If it was lean I would think the plug would have been ...

I’ve enjoyed reading through this thread – I’ve gone through it several times and pick up something new each time. Thanks Rocket Ray and others for sharing your expertise. I’ve just gotten into Q40 this year and I know I have a LOT to learn. It's very humbling to have been in the RC hobby for about ...

My concern about painting over MonoKote - however well the paint adheres - would be how does it react to the heat of an iron with a cover sock when you want to go over it later to remove any wrinkles that typically appear from time-to-time? I'd be afraid the paint would smudge. :cry: Sounds like tha...