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[EMAIL PROTECTED] wrote: > Dear William. > I did the same observations you do. Hot in summer , close to red line, > barely over 150 F in Winter. > After investigating everything possible about engine oils and some > burned engines in my old beetle I > came to the following conclusion. > Hot is not dangerous as long as you are using the right oil. Cold does > not do too much. Yeah the > boiling water thing. But Water boils at 100C at sea level. > That are 212 ? F. Pretty close to redline.. 180 F translate to 82 C . A > temperature where you have to > be at altitude to make water boil. At the right altitude water boils > even at 150 F degrees. Just fly > high. > The real killer could be hot oil. My German mechanik told me that after > trying all kinds of oil he > would use only single weight oil (30 HD ) for his engines . He installed > a temperature reader in my > Beetle ( because I toasted too many engines) and told me to pull over > ones the temperature reaches 110 > Centigrades which are 230 Fahrenheit. I did so and never burned an > engine again ( I did not have to > pull over though) . Single weight 50 Aviation oil gives you a little > more safety margin here. But > redline really means it. Till there - no further. Over the last hot > weeks here in CA I reached red line > not only ones, watched carefully the temp and knew I would not demand > full power from that little > gasoline eating sucker. Just climb more shallow. one can not really pull > over - we know that. > By the way . Every time I blew an engine in my Beetle I was using > Multiviskose Oils. Changing to single > weight solved all the problems. > > Hartmut > > > William and Amy McElwee wrote: > > > ----[Please read http://ercoupers.com/disclaimer.htm before following > > any advice in this forum.]---- > > > > Here is a question which has interested me for awhile. How close to the > > red > > line on oil temps can I get without risking damage to my engine? My POH > > says the red line for my 85 Continental is 225. In hot weather I find > > that > > it gets up over 200 to maybe 205. I begin to get nervous in climb when > > it > > gets up there towards that red line on the guage. Meanwhile, in the > > winter > > it tends not be get above 140. I keep reading in the aviation press > > that > > oil experts say it should get to180 or it will not boil off the water > > vapor > > even if I fly it often, which I do. This way lies corrosion. Should I > > be > > doing something with baffling in the winter to get the temps up? > > > > Bill McElwee N3359H > > > You shoukd have the front cowl winter baffle installed when it's cold or > the oil temp will be too low, Craig 2623H ==^================================================================ EASY UNSUBSCRIBE click here: http://topica.com/u/?bz8Sid.bAhN69 Or send an email To: [EMAIL PROTECTED] This email was sent to: [EMAIL PROTECTED] T O P I C A -- Register now to manage your mail! http://www.topica.com/partner/tag02/register ==^================================================================
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