Safety Officer Posted January 4, 2013 Report Share Posted January 4, 2013 Just an FYI, I has been noted that if your coolant hoses have been changed in a warm heated hangar and or the engine temp is in the neighborhood of 65F-70F and then is flown and stored in a hangar that reaches temps down around 10F and lower that you may get a slight ooze from under the screw clamps on the coolant hose. The clamps, rubber and aluminum tubing all shrink at different rates and just enough to allow an ooze of coolant and may appear on the floor. Just tighten the screw clamps on the coolant hose. These should be checked and tightened at the next 100 hr or annual no matter what after a hose change. Things settle in and the rubber will crush down a bit. If you live and fly in cold country it is possible to see a tablespoon or two of coolant on the floor. This can be from the ceramic water pump seal. This can be very normal. If you see a large puddle then that's not normal. Link to comment Share on other sites More sharing options...
josjonkers Posted January 4, 2013 Report Share Posted January 4, 2013 Very true! Had the same experience and thought it was a water pump leak. Ended up being just as described and after tightening the clamps no more coolant weeps. Link to comment Share on other sites More sharing options...
CT4ME Posted January 4, 2013 Report Share Posted January 4, 2013 ditto here... 'had a noticable dribble on the hangar floor after the temp changed for the colder. After tightening the clamps, things were dry again! tim Link to comment Share on other sites More sharing options...
Doug G. Posted January 5, 2013 Report Share Posted January 5, 2013 This is very timely. I was wondering if I was going to have to attack this problem in a cold hangar. I guess it is good to know it is "normal." Thanks Link to comment Share on other sites More sharing options...
207WF Posted January 25, 2013 Report Share Posted January 25, 2013 Same thing here! It got really COLD in SoCal - down to almost 40 degrees F at night! I was dripping coolant from some of the hoses. Just tightened them up this week. WF Link to comment Share on other sites More sharing options...
Doug G. Posted January 25, 2013 Report Share Posted January 25, 2013 I sure wish it would get that cold here - we were -20 last night. I fly down to about +10, especially if the sun is shining. I have to dress warm. We had an inversion the other day and it was +40 at 6000' - I had to shut the cabin heat off! Link to comment Share on other sites More sharing options...
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