getting cold

Horst · Unread post by **Horst** » December 22nd, 2007, 9:18 am

not having the brush guard cover today the coolant temperature would not rise above 140Â°...

Bill, Idaho · Unread post by **Bill, Idaho** » December 22nd, 2007, 10:00 am

One would only imagine a properly working thermostat would bring the operating temp up to about the same, tempurature summer or winter. Are you sure it's working correctly?

Unread post by **rickf** » December 22nd, 2007, 10:36 am

The engine was probably up to temp, The guage was probably frozen!

Horst, What was your antifreeze level and operating temperature?

Rick

Horst · Unread post by **Horst** » December 22nd, 2007, 11:16 am

Well, I thought the same when I had this a few weeks ago already. As I had a spare, NOS thermostat, I put it in as it only takes a few minutes. Same thing. Then I actually thought the gauge is bad. However, as a next test I let it idle but covered the grille with a piece of cardboard. Now the temperature was rising up to 160Â° and beyond.
Today's temperatures where a few degrees below freezing and it would not indicate more than 140Â° coolant temp. Radiator is filled with a normal antifreeze/water mixture.

On top of that sometimes I have a different problem when cold:
It would start without any problems and idle. But after a few minutes or miles driven, it would not idle anymore, no matter what position the choke would be in. It will then run very rough. After 10 minutes or so, in most cases, idle would come back. I had suspected carburetor icing because of the fording intake, but I have no proof that this is the case.

Any ideas ?

Maybe it just hates the cold as much as I do.

Floyd · Unread post by **Floyd** » December 22nd, 2007, 1:14 pm

Horst I think you were right. Sounds like carb ice to me also.

Floyd

Unread post by **rickf** » December 22nd, 2007, 1:59 pm

I also vote for carb iceing. As far as the thermostat, did you have your heater running? That will pull heat out of the engine also. Not much engine there to produce a lot of heat.
Rick

Horst · Unread post by **Horst** » December 22nd, 2007, 4:39 pm

I do not have a heater...

...and that's why I decided not to take the 151 on the 30 minutes drive to the airport today.

Floyd · Unread post by **Floyd** » December 23rd, 2007, 1:12 pm

Horst: that is so cool! Das ist wunderbar. It's a 269, right? Hope all is well in Germany.

Floyd

Bill, Idaho · Unread post by **Bill, Idaho** » December 24th, 2007, 10:54 pm

What are the two airplanes in the background?

Horst · Unread post by **Horst** » December 25th, 2007, 7:02 am

Floyd,

Yes, that's a 269C. Had been a perfect day for flying, but now everything is fogged in again.

Bill,

The tail dragger is a DO-27, the other one I think is a Fuji.