Thanks for the input Bruce and Sam. I will ask on continental engine site. Not sure how installing silk thread could change the torque characteristics. Looks like Bruce will be providing an update

Jim, also try posting on the https://smallcontinentalengines.groups.io/g/main Silk thread under the through bolts? I dunno. That sounds like the kind of thing that could cause an issue with

I like this picture. I wasn't smart 'nough to understand the others you sent Jay. I am noticing the aft end of the airfoils look different. It looks like there is negative camber on the aft end of

YepI That would be correct on the actual through bolt. I did the silk thread with thread locker or RTV in the thread. I did both left and right ends to keep from leaking on either side. You will

Hey Bruce, I also have an oil leak I’ve been putting off fixing on #2 and #3 cylinders. I think it’s the thru bolts leaking. I’ve heard that the leak can be stopped by pulling the cylinder away,

Thanks guys! I’ll check for an air leak but I’m not completely sure where I’d see that. Any tips? Corbin -- Corbin N33QR

I agree with Mike. When the tank runs dry the pump gets a lot louder! Then I start looking for a runway! Also clean out the fuel filter. You can not see fiberglass in the filters! Bruce Crain

Good thought Mike. If it’s grabbing air that would definitely cause it cuz yes they make a lot of noise pulling air. I remember being over the desert thinking I had an hour more in the main tank

The facet pumps make a hell of a racket when they run dry. Could you have an air leak somewhere that's leaking air into the pump. Do you have a squeeze bulb in parralel? I've had a squeeze bulb go

I’m gonna agree with Jay, if it makes you think about it then change it out. Martin

Hi Corbin, If it makes you think about it, then replace it. Not worth the worry, it won't get better on its own, and they are not that expensive. My two cents. Cheers, Jay Sent from my Verizon

Mine only makes the clicking sound when the main tank gets low and the pump is running “dry”. Corbin -- Corbin N33QR

Is it supposed to make noise? The one in my Q2 does. Now the Citabria I'm using for a tail-wheel endorsement is quiet (and the 172 is loud).

Today, my transfer pump was making a clicking sound from startup to shutdown. It seemed as though it was pumping into the header tank just fine though as fuel was passing back down through the

Comparison of shape of Roncz, and LS-1 airfoils. (from Q-talk 97)

Comparison model data of Roncz versus a few other airfoils of that vintage. Cheers, Jay

I don't have a clue as it has been a looong time ago when I set up the strainers. They were adjustable at first but the extra bolt heads sticking out in the wind and also the rough texture of the

Copy that David. I wonder if the Roncz canard has the elevator top air moving in board at cruise or was it designed out? I think Mark Shuck was working on a Roncz canard to the Quickie. I don't know

Bruce, The LS-1 airfoil has been a poor choice since day one, precisely because of the elevator shape that causes it to float trailing-edge up requiring sparrow strainers to counteract. And QAC knew

Hi Bruce, If the tufts are pointing any direction other than straight back, they are caught up in the vortex within the separation bubble. The size of this bubble increases dependent on the