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Re: Rocker Post Shims.......

To: Lawrie Alexander <Lawrie@britcars.com>
Subject: Re: Rocker Post Shims.......
From: neil.cairns@virgin.net
Date: Sun, 06 Sep 1998 07:08:42 -0700
Lawrie,

It has now got under my skin, I am determined to find a reason for them.

Neil.

Lawrie Alexander wrote:
> 
> Neil.......
> 
> Sherlock Holmes would have been proud of you! Dogged determination has been
> demonstrated; I, for one, am impressed!
> 
> Lawrie
> -----Original Message-----
> From: neil.cairns@virgin.net <neil.cairns@virgin.net>
> To: mgs@autox.team.net <mgs@autox.team.net>
> Date: Saturday, September 05, 1998 9:03 AM
> Subject: Re: Rocker Post Shims.......
> 
> >No, not an answer, but more information. In the UK magazine 'Practical
> >Classics', a series of aricles were run on updating and improving the
> >MGB in 1988. The articles are still interesting, and in the July '88
> >issue, Ron Hopkins shows an engine rebuild. There is a super photo of
> >the two shims being fitted to the two centre posts, BUT NO EXPLANATION.(
> >Page 41.)
> >
> >If you want back copies of these articles, ( including the MGB V8) email
> >< practical.classics@ecm.emap.com > They have a web site on <
> >www.classiccarsworld.co.uk >
> >
> >I have also found diagrams of the shims on the 18V engine, in the Morris
> >Marina Manual, AKD 7555, issue 3. This is a book for manufacturers to
> >rebuild to, and is about 2" thick, full of excellent engine & gearbox
> >diagrams. Yes, the shims are shown in 12.29.54, but NO EXPLANATION for
> >them.
> >
> >"MGB & MGB GT ",P. Olyslager Motor Manuals, no mention of them.
> >
> >"MGA,MGB & Magnette", by Abbey, no mention.
> >
> >" Motor Repair Manual, 68-70 models", MGB section, just goes into the
> >overdrive unit and closed circuit breathing. No shims.
> >
> >"Austin 1800 & Princess manual", ( Landcrab,) shows the shims, ( page
> >16) but still no reason for them.
> >
> >" Austin 18-22 Series", ( wedge shaped Landcrab,) again shows those
> >shims, on page 31, but no explanation.
> >
> >I am running out of places to look...........
> > Neil.
> >
> >
> >neil.cairns@virgin.net wrote:
> >>
> >> This will teach me to rely on memory...I WAS WRONG......
> >>
> >> In the MGB workshop manual I have, shims are not mentioned.
> >> In the excellent book an all 'B' series engines, by Lindsay Porter,
> >> shims are not mentioned.
> >> In the BLMC 1800 & 18/85 ( Landcrab,) workshop manual, shims are not
> >> mentioned.
> >>
> >> But..........in the Morris Marina ( 18V ) engine manual, I quote...
> >>
> >>    "Undo the four rocker shaft pedestal nuts evenly to avoid distorting
> >> the rocker shaft. Remove the washers and lift off the shaft, NOTING THE
> >> SHIMS UNDER THE CENTRE PEDESTALS ON 1.8 ENGINES, ( fig C2 and C5.)"
> >>
> >> ............and the sketch shows a shim under each centre post. This can
> >> only apply to the MGB when the 18V engine ( from the Marina) was used,
> >> after October 1971. No explanation for the shims is given.
> >>
> >> Did not " MR CAIRNS" do well?
> >>
> >> Neil
> >

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