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wife unhappy with hum drum noise
Posted: Sat Aug 06, 2011 3:03 pm
by horrace
when idling the engine on my pick up gives off a ear popping low humming noise, i can tolerate it but the wife in moaning. i fitted noise killer sound proofing on the bulkhead and floors and i have a carpet set. engine is standard other than larger inlet manifold and exhaust. the noise dissappears as soon as revs pick up?
Re: wife unhappy with hum drum noise
Posted: Sat Aug 06, 2011 3:36 pm
by katy
Sounds like retarded ignition timing. Check that and also that the weights in the distributor are free moving.
Re: wife unhappy with hum drum noise
Posted: Sat Aug 06, 2011 7:48 pm
by bmcecosse
Is there perhaps something touching the body - from the engine ? Perhaps exhaust where it passes out of the engine bay ? Engine steady perhaps too tight? Engine mounts gone soft ??
Re: wife unhappy with hum drum noise
Posted: Sat Aug 06, 2011 8:12 pm
by les
Double blade fan instead of single? Meet wife at destination?
Re: wife unhappy with hum drum noise
Posted: Sat Aug 06, 2011 9:27 pm
by ASL642
Re: wife unhappy with hum drum noise
Posted: Sat Aug 06, 2011 9:36 pm
by horrace
i have played around with the engine steady so perhaps its too tight, whats the spec for tightening the engine steady?
i gues i could just leave the wife behind at least that cuts half the noise out
Re: wife unhappy with hum drum noise
Posted: Sat Aug 06, 2011 9:48 pm
by ASL642
Seat in the back?
Re: wife unhappy with hum drum noise
Posted: Sat Aug 06, 2011 10:00 pm
by horrace
dont think it would be safe to drive from a seat in the back
Re: wife unhappy with hum drum noise
Posted: Sun Aug 07, 2011 11:22 am
by Mogwai
horrace wrote:dont think it would be safe to drive from a seat in the back
don't worry it will be fine
Re: wife unhappy with hum drum noise
Posted: Sun Aug 07, 2011 12:12 pm
by bmcecosse
Steady bar (and gearbox restraint cable) should just be nipped up.
Re: wife unhappy with hum drum noise
Posted: Sun Aug 07, 2011 12:50 pm
by irmscher
easy pair of ear plugs
have you checked dynamo belt ?
Re: wife unhappy with hum drum noise
Posted: Sun Aug 07, 2011 5:39 pm
by horrace
i have alternator belt, are you saying if that was too tight or loose it would hum? im gonna slacken off engine steady and see..
Re: wife unhappy with hum drum noise
Posted: Sun Aug 07, 2011 9:15 pm
by bmcecosse
You could take the belt off to see if the noise then disappears.. could be alt bearings or just the fan swishing round - one way to find out!