Cooling RPM, Oil temp Vs RPM Options

[DavidSweden]

I have got my engine back together and running after 2 dropped valve seats.
I am keen to keep the heads cool, I think I read something on this forum about keeping the engine revs about 3500 to provide adequate cooling even if this means driving in 4th gear to keep the revs up.

What to members advise?

[Elliot Cannon]

On the way home from a route 66 tour, I found myself climbing a very long fairly steep hill out side of Needles California. I noticed the car not answering throttle like it should. I looked at the CHT and it was WELL over 400 degrees. I thought I had cooked it. I pulled over and stopped, shut the engine down and let it cool off for about 30 minutes. When I got out of the car, it was VERY difficult just to get the door open and it was then I realized not only was I going up a long steep hill but I was going into about a 30 to 40 mile and hour wind. (IMG:style_emoticons/default/w00t.gif) I took the advice I learned from Mr. Joe Sharp (a long time and well respected air cooled engine guy) and drove all the way to Barstow in fourth gear and about 65 MPH. By keeping the rpm's up and the resulting increase in cooling fan speed my head temps. went back down and stayed at 325/350 which is normal for my engine. Oil temp. stayed at 190. So, I'd say, "yes keeping rpm's up will help keep the CHT's down". (IMG:style_emoticons/default/laugh.gif)