The Ford Barn - View Single Post - Whirring noise .. from I don’t know where

hombres ruin · 01-02-2021, 05:59 PM

Hi. My 41 coupe is making a whirring noise and I need help to pin it down. So 6V new generator (replaced the older one about 3 months ago) water pumps are sealed bearing units from van pelt. A new belt went on when the pumps went in about a year or so ago. The belt is at the correct tightness per the 41 handbook . 1 inch deflection midway between generator and water pump pulley. So on start up it idles perfect no noise . When she warms up and I have driven the car for some time . When i idle the car in park and give it some gas to a higher RPM she makes the noise . Most times it lasts about 10 seconds and it’s gone and back to a noiseless idle. Other times it’s sustained until I turn the engine off and start her up again and it’s gone. I put belt dressing on the fan belt and the noise still occurs. It will make a whirring sound then it sounds like the belt gains traction and it stops and idles with no noise . Any ideas ? Time for a new belt?

01-02-2021, 05:59 PM	#1
hombres ruin Senior Member Join Date: May 2010 Location: san diego Posts: 518	Whirring noise .. from I don’t know where Hi. My 41 coupe is making a whirring noise and I need help to pin it down. So 6V new generator (replaced the older one about 3 months ago) water pumps are sealed bearing units from van pelt. A new belt went on when the pumps went in about a year or so ago. The belt is at the correct tightness per the 41 handbook . 1 inch deflection midway between generator and water pump pulley. So on start up it idles perfect no noise . When she warms up and I have driven the car for some time . When i idle the car in park and give it some gas to a higher RPM she makes the noise . Most times it lasts about 10 seconds and it’s gone and back to a noiseless idle. Other times it’s sustained until I turn the engine off and start her up again and it’s gone. I put belt dressing on the fan belt and the noise still occurs. It will make a whirring sound then it sounds like the belt gains traction and it stops and idles with no noise . Any ideas ? Time for a new belt? __________________ "I have built my organisation on fear"..Al Capone.