Well, Neil, not bad! You found a reference to the shims being under the
center posts only, but not the reason why. So, 5 points on a scale of one to
ten..........
To win the trip to Hawaii, now track down the engineer who came up with this
odd idea and discover his reasoning.......
(I've always assumed it was some scheme to exert a tad more pressure in the
center of the head to prevent the almost universal coolant weep from between
the head and the block down over the engine's I.D. tag)
Lawrie
-----Original Message-----
From: neil.cairns@virgin.net <neil.cairns@virgin.net>
To: mgs@autox.team.net <mgs@autox.team.net>
Date: Monday, August 31, 1998 12:52 AM
Subject: Rocker Post Shims.......
>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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