S1 4.2 Diff noise

Talk about the E-Type Series 1

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aidanc
Posts: 7
Joined: Fri Jan 03, 2014 8:15 am
New Zealand

#1 S1 4.2 Diff noise

Post by aidanc » Wed Aug 08, 2018 7:27 am

Hi my S1 4.2 FHC USA spec has a serious noise, whine, when under power but silent on over run is it bound to be the Diff? any cure other than replace?

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christopher storey
Posts: 4642
Joined: Sun Mar 09, 2008 3:07 pm
Location: cheshire , england
Great Britain

#2 Re: S1 4.2 Diff noise

Post by christopher storey » Wed Aug 08, 2018 1:21 pm

Very likely indeed to be the diff . You need to get the rear cover off and see the marks on the crown wheel which show the tooth engagement. If you look in the knowledge base in the final drive section of the workshop manual, it has useful diagrams showing the significance of the tooth marks ( you probably will need engineer's blue to do it ) . It may be that the pinion is out of adjustment . You have checked the oil level, I hope , and that the correct EP oil is being used ?

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