---------------------------------------------------------- M14PEngines-List Digest Archive --- Total Messages Posted Wed 10/09/13: 1 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 04:06 PM - Re: Re: Low RPM (jrpearson@brant.net) ________________________________ Message 1 _____________________________________ Time: 04:06:59 PM PST US Subject: RE: M14PEngines-List: Re: Low RPM From: jrpearson@brant.net Thanks Mark, I think I've narrowed it down to the governor linkage. J.P. -----Original Message----- From: "Bitterlich, Mark G CIV NAVAIR, WD" Sent: Mon, 07 October 2013 16:16:59 Subject: RE: M14PEngines-List: Re: Low RPM When you have everything wide open... pushed to the firewall, and you take the aircraft into a dive leaving everything wide open... and I am talking a steep dive here, does the RPM go up, or does it stay governed at 88%? Note: If you are not developing enough power to take the engine to 100% due to fuel flow, carburetion issues, or throttle cable sleeve clamping, then in a dive the engine RPM will increase and go to the maximum setting that the governor will regulate. In other words, RPM will go up. If you are in the dive, and the engine RPM stays close to exactly the same, then you've got a prop governor issue, or possibly blade angle. I defer to Dennis on all engine issues, but this test might be of some help. Mark -----Original Message----- From: owner-m14pengines-list-server@matronics.com [mailto:owner-m14pengines-list-server@matronics.com] On Behalf Of A. Dennis Savarese Sent: Friday, October 04, 2013 16:26 Subject: Re: M14PEngines-List: Re: Low RPM Look at the things that are common to both engines since the symptom has not changed when you changed the engine. - Prop - Throttle Cable What did you set the blade angles to on the V530? ie: How many degrees and at what reference point on the blades? The throttle cable sleeve might be slipping. If it slips at all, you will not get full throw at the carburetor. That could be why you feel like you can push it further with no increase in RPM. Check to see if the sleeve is moving anywhere from the throttle lever through the firewall and then to the carburetor. Do you have a fuel flow instrument in the airplane? If so, what is the fuel flow at WOT on take off? Normal for an M14P 360HP engine is between 37 and 41 gallons per hour. Dennis ________________________________ From: john.pearson757 Sent: Friday, October 4, 2013 3:00 PM Subject: M14PEngines-List: Re: Low RPM Thanks for the reply. The prop is a 2 blade V530 - different governors. It is going to the stop. I think the throttle is OK. When I reach 87%, I can push the throttle forward quite a bit more. Read this topic online here: http://forums.matrosp; -=============== ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message m14pengines-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/M14PEngines-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/m14pengines-list Browse Digests http://www.matronics.com/digest/m14pengines-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.