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I bouht a tester on the way home.
Spinning the prop by hand, I couldn't get the needle over 40. Spun it with the starter, and the rear rotor bounced around 100. The front rotor was between 80 and 90. I added a little oil to the front rotor, and it to was up to 100.
This was on top of the ATF I added last night. The engine did seem stronger after sitting in the ATF for a while, but that may just be my imagination.
I put the valve back in, to see what the max compression was on each rotor. Both pumped the tester up to 120.
I will roll it out and give it another try tomorrow.
hoursaway1@comcast.net wrote:
Make sure your tester insert is not threaded in to far,,, hit seals. David ----- Original Message -----
From: "Bill Bradburry" <bbradburry@bellsouth.net> To: "Rotary motors in aircraft" <flyrotary@lancaironline.net> Sent: Wednesday, May 2, 2012 4:45:21 PM Subject: [FlyRotary] Re: It won't run no more Ernest, There is a Schrader valve in the end of the hose that has the two O-rings on it. That valve will cause the tester to pump up and stay up at the max pressure if you are testing a piston. To test the rotary, you would remove that valve and watch the gage to see where it goes as each face rolls by the plug. There is another Schrader valve just under the gage that has a valve stem cap on it. It looks like a black button in the picture. That is to release the pressure after you have pumped it up with the piston. Don't remove that valve or the tester will not work for either engine type. B2 -----Original Message----- From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Ernest Christley Sent: Wednesday, May 02, 2012 9:38 AM To: Rotary motors in aircraft Subject: [FlyRotary] Re: It won't run no more Lehanover@aol.com wrote: Get the kind that has a hose and the Spark plug replica that seals with an "O" ring. Easy to use in tight spaces. No tools required to install it. Lynn E. Hanover In a message dated 5/1/2012 10:44:02 P.M. Eastern Daylight Time, echristley@att.net writes: I don't have a compressiion tester yet.
Like this one? http://www.jegs.com/i/Sunpro/885/CP7827/10002/-1 Where is the schrader valve you were saying needs to be removed? I'm assuming the procedure is to spin the engine with the starter and eyeball the needle to see where it is maxing out? -- Homepage: http://www.flyrotary.com/ Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List.html -- Homepage: http://www.flyrotary.com/ Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List.html
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