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Slippy Slidy Rear End

To: "Spitfire List" <spitfires@autox.team.net>
Subject: Slippy Slidy Rear End
From: "James Carpenter" <jc_carpenter@softhome.net>
Date: Wed, 17 Feb 1999 00:33:00 -0000
Hi there,

I have a question, how slide is the rear end on your Spitfires.  I was
turning right at some traffic lights yesterday, first 2000 rpm second and
the end went "all to cock" and I had to ease off and get the car pointing
straight ahead again.  I was using maybe 3/4 power but low down in the rev
range.  I am trying to think what would cause it to go like that, it was
slightly damp.

I know the tires were at the correct pressure maybe 1-2 PSI over but even.
One tire is a brand new Perrelle and the other a remould which is being
replaced as soon as I find exactly the same Perrelle.  The car has had a new
rear spring, new shocks, the rubbers have been checked (one was replaced by
the garage), the bodywork is sound.  The UJ's are fine, no loose bolts and
the bolt holes are not oval.  The front was completely redone, new
everything, except steering rack mounts and UJ because they looked
practically brand new.

Trouble is I had no warning of this happening, and it makes me loose
confidence in the car.   The car it's self is grate round a corner as long
as you don't accelerate.  When I accelerate round a corner the steering
seems to change and it starts to overseer, but not nicely.  I would describe
nicely the same as flicking it round in a loose thing gravel car park.  It's
quite hard for me to explain because I haven't driven any other rear wheel
drive cars.

Is this a case for a new steering UJ and aluminium rack mounts?
Should I get the rear tow-in tow-out checked?

Can the diff ever develop a fault where it try to give more power to one
side than the other, causing that side to spin?

I know that cursing at 20-30 mph I can quite happily flick it round tight
corners that most cars would start to screech at without problems, even
braking at the same time.  At 'A' road speeds round long corners it seems to
lack confidence and be vague.

It also seems to get more wind buffeting than eurobox cars of equivalent
weight that I have driven, especially at speed.  Crossing the old Severn
bridge in a force 6 still gives me nightmares.



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