spitfires
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RE: Noise Diagnostics

To: OC <OC@46thFoot.com>, spitfires <spitfires@autox.team.net>
Subject: RE: Noise Diagnostics
From: Richard B Gosling <Gosling_Richard_B@perkins.com>
Date: 14 May 2001 12:25:57 -0500
Mike,

May not be as severe as the rear trunnion bearings - I would first check your
 UJs.  However, dodgy UJs are usually most signified by a clunk as you hit the
 accelerator, or lift off for engine braking.  Still, worth checking:

Jack up the rear of your car and place on axle stands.  Crawl underneath the
 rear end, and try to twist the prop-shaft while watching each UJ in turn.  If
 you can detect ANY free play in the UJs before the wheels start to turn,
 replace them.  They are cheap (7 quid), but can take up to a couple of hours
 each to replace if you bump into some recalcitrant nuts (half that if
 everything co-operates - like that ever happens!).  If this is your problem
 drop me a line for detailed instructions - I've done this more often than I
 want to.  Actually, easier - go to Jeff McNeal's Totally Triumph Garage,
 Member Generated How-To Clinics
 (http://www.ohms.com/cgi-bin/dcforum/dcboard.cgi?az=list&forum=DCForumID45&con
f=DCConfID7), I wrote the whole procedure up there.

DO NOT DELAY ON UJ REPLACEMENT - it is very very scary if they fail completely
 while you are doing 70mph - I should know, I've now done it twice!  Having
 said that, I hope your 200-mile trip today was completed without incident...

However, it may just be something rubbing against something else, and nothing
 to worry about.  May be worn out brake shoes grinding against the drums?  I'm
 not sure what else there is to rub around there, particularly since the spring
 has been replaced so the tyres should be well away from the wheel arches.

Richard & Daffy

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