---------------------------------------------------------- TeamGrumman-List Digest Archive --- Total Messages Posted Sat 06/22/13: 3 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 11:28 AM - What Temps should I see? (Patricia Kirkpatrick) 2. 12:53 PM - Re: What Temps should I see? (Scott Trejo) 3. 10:54 PM - Re: What Temps should I see? (Brock) ________________________________ Message 1 _____________________________________ Time: 11:28:50 AM PST US From: "Patricia Kirkpatrick" Subject: TeamGrumman-List: What Temps should I see? Gentlemen (and Ladies too) I just had a newly overhauled O-360 installed on my tiger, along with a JPI EDM-900 analyzer. My issue is that I have no reference data to tell how hot my engine is running. I am aware that Tigers have a reputation for running hot, but my old panel only had an EGT gage. Specifically, what CHTs for cyls 3 & 4 should I expect to see on a newly overhauled ( and thus tight) engine during climb and also during cruise? Also, what temps should I expect to see on those same cylinders during climbs and during cruise after the engine is broken in and using detergent oil? I understand climb speeds and ambient temps affect the situation to some extent, but some ballpark figures would be nice for a reference. Ken Kirkpatrick N28546 ________________________________ Message 2 _____________________________________ Time: 12:53:25 PM PST US Subject: Re: TeamGrumman-List: What Temps should I see? From: Scott Trejo Ken, I have a 1977 AA5B with JPI CHT/EGT monitor. My engine has less then 3 00hrs TSOH and during the summer I see 425 in cruise and 440 during climb. I use a cruise climb at 110kts. CHT's have always been really hot. My baff ling is really good also. I just installed a new Lopresti nose bowl but ha ven't flown it yet. I will post results soon. Scott Trejo N499GT Sent from my iPhone On Jun 22, 2013, at 1:27 PM, "Patricia Kirkpatrick" w rote: > Gentlemen (and Ladies too) > > I just had a newly overhauled O-360 installed on my tiger, along with a JP I EDM-900 analyzer. My issue is that I have no reference data to tell how h ot my engine is running. I am aware that Tigers have a reputation for runni ng hot, but my old panel only had an EGT gage. Specifically, what CHTs for c yls 3 & 4 should I expect to see on a newly overhauled ( and thus tight) eng ine during climb and also during cruise? Also, what temps should I expect t o see on those same cylinders during climbs and during cruise after the engi ne is broken in and using detergent oil? I understand climb speeds and ambi ent temps affect the situation to some extent, but some ballpark figures wou ld be nice for a reference. > > Ken Kirkpatrick > N28546 > > > ========================== ========= ========================== ========= ========================== ========= ========================== ========= > ________________________________ Message 3 _____________________________________ Time: 10:54:19 PM PST US From: Brock Subject: Re: TeamGrumman-List: What Temps should I see? Ken, My tiger has about 600 hours smoh and I have edm-830. I have worked reall y hard to get my baffling very consistent between cylinders. During fast cru ise, WOT leaned to 2700rpm (luckily my engine runs about 75 degrees LOP very well) anywhere from 5500 to 8500ft 135-136kts TAS; I see anywhere from 390- 410 on cyls 2,3, and 4 depending on OAT. They also have EGT spread less the n 20. Number 1 is my oddball, CHT generally runs about 50 cooler than the o thers, and EGT is around 100 cooler. It is my first cylinder to start missin g while leaning. Brock Sent from my iPad On Jun 22, 2013, at 1:27 PM, "Patricia Kirkpatrick" w rote: > Gentlemen (and Ladies too) > > I just had a newly overhauled O-360 installed on my tiger, along with a JP I EDM-900 analyzer. My issue is that I have no reference data to tell how h ot my engine is running. I am aware that Tigers have a reputation for runni ng hot, but my old panel only had an EGT gage. Specifically, what CHTs for c yls 3 & 4 should I expect to see on a newly overhauled ( and thus tight) eng ine during climb and also during cruise? Also, what temps should I expect t o see on those same cylinders during climbs and during cruise after the engi ne is broken in and using detergent oil? I understand climb speeds and ambi ent temps affect the situation to some extent, but some ballpark figures wou ld be nice for a reference. > > Ken Kirkpatrick > N28546 > > > ========================== ========= ========================== ========= ========================== ========= ========================== ========= > ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message teamgrumman-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/TeamGrumman-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/teamgrumman-list Browse Digests http://www.matronics.com/digest/teamgrumman-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.