---------------------------------------------------------- Rocket-List Digest Archive --- Total Messages Posted Thu 06/05/08: 1 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 07:35 PM - CHT's and fuel flows (Wiley) ________________________________ Message 1 _____________________________________ Time: 07:35:04 PM PST US Subject: Rocket-List: CHT's and fuel flows From: "Wiley" New Rocket owner here and looking for some guidance. The plane io-540-c4b5 Bendix rsa 500 hrs. Previous owner built it and battle high cht's since new. He just redid top end at 500 hrs smoh due to low compression. The baffling looks perfect and it's obvious he's tried everything to get the temps down, cowl flaps, louvers, silicone, etc. I'm getting 420+ cht's on an easy climb out and it's hard to get them down until at altitude for a while. Even then I'm 380+. On takeoff I'm showing flow at around 23gph. At 24sq. showing between 17 adn 22gph. All the above up to 3000msl and oat around 75F. A lycoming guru said my takeoff flow was 6gph low so I had the rsa rebuilt and it came back with a report of two bad nozzles and erratic flows. After putting it back on I'm getting almost identical flow readings. I don't have a service manual for this engine. I have the EIS monitoring system and I can't figure out which cht reading on the screen corresponds to which cylinder. So can't tell you which is hottest but most are up there. Also, my manifold pressure seems to be an inch low w/o ram air. Each tank has a screen but I've tried both tanks and flows are same. Anyone have any ideas of what to check next? Read this topic online here: http://forums.matronics.com/viewtopic.php?p=186440#186440 ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message rocket-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Rocket-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/rocket-list Browse Digests http://www.matronics.com/digest/rocket-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.