Home · FAQ · New Posts · My Posts · PMs · Search · Members · Members Map · Calendar · Profile · Donate · Register · Log In |
Home > Technical > Noise when changing up. |
|
|
iain cooper Member Since: 27 Aug 2007 Location: north of Glasgow Posts: 1989 |
dry thrust bearing ?
|
||
5th Apr 2012 8:03 am |
|
JST Member Since: 01 Nov 2011 Location: Lizant Posts: 1098 |
Bit of a long shot but if it is a "hum" it may be the alternator. I have noticed this on my FL2 and my wife's Peugeot 307cc. I suspect it is something to do with the charging strategy adopted by the ECU which means that the load placed on the alternator is not always directly related to engine speed and tends to "hum" a bit when pulling away under higher revs and then settle down.
|
||
5th Apr 2012 8:22 am |
|
Hornsby Member Since: 15 Jan 2012 Location: Wiltshire Posts: 27 |
Thanks for those tips, I'll now go on a long drive and make a few tests!!! |
||
5th Apr 2012 8:24 am |
|
ad210358 Member Since: 12 Oct 2008 Location: Here and There Posts: 7464 |
Going along with the alternator theory, some vehicles do incorporate a clutch on the alternator drive pulley and they have been known to seize up, I don't know if there is such a clutch on the Freely though. |
||
5th Apr 2012 9:15 am |
|
Hornsby Member Since: 15 Jan 2012 Location: Wiltshire Posts: 27 |
Last week I sked for any help on a noise which was apparent when changing up, or even when revving the engine when stationary. Like a zinging noise, similar to a straight cut gear noise emitted by passing army vehicles. It got worse so I took it to Adrian Joyce in Trowbridge who diagnosed it in minutes. Apparently the steering pump fluid level was low and he suspected air in the system, oddly enough no leak was found. After topping up he suggested a decent run which should expell the air. This worked a treat and the noise gradually disappeared. I am now watching the fluid level closely. Thanks for everyone's comments, I thought this might help someone else. |
||
12th Apr 2012 8:50 am |
|
|
All times are GMT |
< Previous Topic | Next Topic > |
Posting Rules
|
Site Copyright © 2006-2024 Futuranet Ltd & Martin Lewis