[ROVERNET - UK] P5 Girling booster

[Scott's Old Auto Rubber]

No, first booster came out in 1955, the Clayton, then in 1956 they changed 
to the modern booster which had some detail changes but stayed on the cars 
till the V8 came out in the P5.
Thankyou,
Scott.

We have moved, see web site below for details!!!
Our postal address and phone numbers are the same.
www.scottsoldautorubber.com.au
Automotive Rubber and Seals for Many Makes and Models,
P.O. Box 107 Oakleigh, Melbourne 3166,  Australia.
Phone and Fax: - 61- 3 - 9563 3023
http://www.xe.net/pca/
(Currency Converter)
scottsoldautorubber at bigpond.com.au
Closed Saturday and Sunday.

----- Original Message ----- 
From: "Paul Smith" <Paul.Smith at auroraenergy.com.au>
To: <rovernet at lyris.ccdata.com>
Sent: Friday, October 20, 2006 1:04 PM
Subject: RE: [ROVERNET - UK] P5 Girling booster


My recollection from P4 workshop manual is that all the 90s, 105s, 60s (if 
any 60s were made that late) had Clayton.  80s, 100s, 95s, 110s had Girling.
So 1959-60 was when the change was made.

PVS

-----Original Message-----
From: rovernet-bounces at lyris.ccdata.com
[mailto:rovernet-bounces at lyris.ccdata.com]On Behalf Of S Manwell
Sent: Friday, 20 October 2006 1:57 pm
To: rovernet at lyris.ccdata.com
Subject: Re: [ROVERNET - UK] P5 Girling booster


Kent,

In some servo rebuild kits the rubber rod (for pushing the leather seal
against the vacuum cylinder)  is  too thick or not soft enough.  I had
the same problem and wound up re-using the original rubber rod in a
re-rebuild.  The first time around the servo I rebuilt for my P5 put the
brakes on a little more firmly each time I touched the pedal until the
car wouldn't move.  We had better luck with the servo I rebuilt for
Dad's P4 110, but it may have been a newer kit (i.e. not an NOS Girling
kit.)  I have never noticed a problem with the leather seal retainer in
these servos nor in others I've taken apart.

I believe the Girling MkII booster is the same in P4's and P5's at least
from around 1960 through 1964, though there are some variations such as
changes in the air intake filter.  I'm not sure when in the '50's the
Clayton servo was phased out.

--Steve

Kent Kinard wrote:

> Gentlemen,
> Let us return to Roverdom lest Eric send us all into exile.
>
> Ruth suggested that I use a P5 type booster on  my P4/100 rather than
> try to rebuild the older style booster.  When I got down to putting it
> all back together, I noticed a crack in the retainer ring (large
> diameter bit that holds the leather seal and rubber tensioner on the
> servo piston).  I pried on it a little and it broke!  Fortunately, I
> had a spare piston (but only one).  Has anyone seen this type of failure?
>
> With the new rubber behind the leather seal and the leather greased
> liberally, the piston does not slide very well in the vacuum chamber.
> After depressing the piston by hand (required to center the bushing)
> a  sharp rap is required to get the piston to return in spite of
> considerable spring pressure.  Is this normal after rebuilding this
> type of booster?
>
> Roveretardedly,
> Kent K.
>
>
>
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