RichP
NAXJA Forum User
- Location
- Effort, Pa
I was looking for something else and they acutally do have a test for the fan clutch.
It involves drilling a 1/8" hole in the top of the fan shroud and sticking an 8" long thermometer, with a range of 0-225F, in the hole BEING CAREFUL TO CLEAR THE FAN WHEN IT TURNS.
Blocking the air flow with plastic or other obstruction in front then starting the engine, running it at 2400RPM for 10 minutes and observing and listening for the increased sound as the fan clutch kicks in and out. It is supposed to engage at 88C/190F and disengagement at 57/79C or 135/175F. Never noticed that section before. OH, and it should not spin more then 5 times when cold and spun by hand
It involves drilling a 1/8" hole in the top of the fan shroud and sticking an 8" long thermometer, with a range of 0-225F, in the hole BEING CAREFUL TO CLEAR THE FAN WHEN IT TURNS.
Blocking the air flow with plastic or other obstruction in front then starting the engine, running it at 2400RPM for 10 minutes and observing and listening for the increased sound as the fan clutch kicks in and out. It is supposed to engage at 88C/190F and disengagement at 57/79C or 135/175F. Never noticed that section before. OH, and it should not spin more then 5 times when cold and spun by hand