---------------------------------------------------------- TeamGrumman-List Digest Archive --- Total Messages Posted Sun 08/27/06: 1 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 08:08 PM - Re: oil temps (george & nancy Kitchesn) ________________________________ Message 1 _____________________________________ Time: 08:08:03 PM PST US From: "george & nancy Kitchesn" Subject: Re: TeamGrumman-List: oil temps --> TeamGrumman-List message posted by: "george & nancy Kitchesn" I have a similar problem. I purchased '76 Cheetah two years ago and the engine oil temp has never run near normal (180 degrees). And lately, with the added hot summer OAT (Huntsville, AL) , the engine oil temp has been running 2 - 3 needle widths from Red Line. I had the engine overhauled with the engine baffels and seals replaced at the same time. Having a 5 channel engine monitor allows me to monitor all 4 cylinder head temps with No. 4 running the hottest. My CHT readings tell me that it's not a cooling problem as the CHTs run consistently below 400 degrees, usually around 370 -390 in cruise. I also have an ADC Eng Oil Filter system which eliminates changing the oil filter. ADC adds say the added filter system and fins should aid in cooling but I haven't noticed any difference. After a long instrument training flight today where the oil temp was again 2 - 3 needle widths from red line, I took a long look under the cowling, again checking the baffels, seals, ect. No problem there. I noticed a sharp bend in the oil line from the engine to the oil cooler to the point I believe the line to be crimped, thus possibly restricting oil flow. The only other thing I can think of is the oil cooler. I believe it to be too small. When Excel-Air overhauled my engine, John Jaardema (Sp) mentioned that I could opt for a larger oil cooler with an additonal cooling vane; however, I opted to keep the OEM oil cooler instead, probably not a good idea. Anyway, I'm going to have my local maintenance folks take a look at it, checking the temp bulb, baffels, etc. I'd appreciate any options or solutions any may have. George N22BA KMDQ Madison Co Executive Airport ----- Original Message ----- From: Sent: Saturday, August 26, 2006 8:33 AM Subject: TeamGrumman-List: oil temps > --> TeamGrumman-List message posted by: "airman@appledumplings.com" > > I wrote a month ago about an oil temp issue. This is an update. > > > I live near atlanta and I have a 1976 aa5b O-360 with 300 SMOH that > I have owned since march. Since the weather has warmed up my oil > temps have been running about 1.5 to 2 needle widths from the red- > line. The things I have done to try to resolve this issue are: > I replaced baffle seals. > I fixed the inter cylinder baffles that were not wired together. > We just recently pulled the vernatherm and it looked to be seated > correctly and operated as expected when we checked it. > We also checked the gauge. Unfortunately it seems to reading low not > high! We are now checking the timing. > The only thing I can think of left is the Oil cooler. Which brings me > to this question. > > What are my options? I think i am just going to go with a new oil > cooler rather than re-condition. Are there any STC's for a larger > cooler and if so can someone send me that info? Have any of you guys > had field approvals for a different cooler? > >