Greg, What is the elevation at your airport and was there perhaps a density altitude condition? !'m at 5100 feet and only get 2300 RPM on take off. When density altitude is a factor I still get 2300 RPM but climb can be limited to 200 - 300 FPM. I'm quite used to this so it doesn't bother me. Jim .....Arizona -----Original Message----- From: Greg Bullough <[EMAIL PROTECTED]> To: [EMAIL PROTECTED] <[EMAIL PROTECTED]>; [EMAIL PROTECTED] <[EMAIL PROTECTED]> Date: Thursday, November 11, 1999 4:46 PM Subject: Re: Sticky Valves??
>Pete... > >John Cooper made a very good point. If RPMs stayed high, you didn't >really lose rate of climb. Are you sure it wasn't some sort of spasm in the >static system? > >Greg > >At 10:23 AM 11/11/99 -0500, Peter Hogan wrote: >>I had an episode on takeoff last week of reduced power. RPM stayed at >>2450 but rate of climb dropped from 650 to 400fpm. Thought it was carb >>ice and pulled the heat.. Once at pattern altitude all seemed normal. >>Back on ground at mag check and full static runup all seemed good. But >>the next day after again a normal run up takeoff was only 200 to 400 fpm >>with passanger aboard.. Got her down fast..Mechanic said it is probably >>a sticky valve?? The Cont 90's will all have that problem sometime or >>another ..Marvel Oil and TCP have both been mentioned. Annual is this >>month and will not fly till this is cleared up..Any feedback would be >>appreciated..Have 1894 hrs on her so a top does not seem resonable ..but >>Madduck wants BIG $$$$$$$$..Could use the voices of experience ..
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