I appreciate the advice and I will try that procedure of doing a run up and then recheck it, thanks for all your help. Cheers
> On Apr 28, 2025, at 2:59 PM, Phillip Matheson via KRnet > <krnet@list.krnet.org> wrote: > > PS You can get a car compression tester and check the compressions when > cold, They should all be simpler, ( low) that will tell you if you have a > dirty or stuck valve > Phil. > Sent from my iPhone > >> On 28 Apr 2025, at 12:20, Lee Shook via KRnet <krnet@list.krnet.org> wrote: >> >> Good evening gentlemen, looking for a little insight. I rebuilt the top end >> of a 2100 D Revmaster new cylinders, pistons rings new heads assembled it >> and did a leak down test and they’re all between 75/80 and 76/80 flown it >> for 5.2 >> Hours, ran very well, it has been a hanger queen for the past 3 years, with >> no time on it since the original 5.2 due to flying commercially. So I dusted >> off the wings and went to work, have been giving it a thorough check over, >> started with a leakdown, failed miserably!!! One cylinder at 20/80 10/80 >> 64/80 66/80. One low cylinder leaks out the exhaust, and the other out the >> intake. >> Am I missing something here, and yes, TDC, even pulled the rocker assembly >> off valves are closed. >> Carbon under the valve seats? Substandard parts? Let me know your thoughts, >> thks in advance. >> -- >> KRnet mailing list >> KRnet@list.krnet.org >> https://list.krnet.org/mailman/listinfo/krnet > -- > KRnet mailing list > KRnet@list.krnet.org > https://list.krnet.org/mailman/listinfo/krnet -- KRnet mailing list KRnet@list.krnet.org https://list.krnet.org/mailman/listinfo/krnet
