MG-Cars.info

Welcome to our Site for MG, Triumph and Austin-Healey Car Information.

Recommendations

Parts

MG parts spares and accessories are available for MG T Series (TA, MG TB, MG TC, MG TD, MG TF), Magnette, MGA, Twin cam, MGB, MGBGT, MGC, MGC GT, MG Midget, Sprite and other MG models from British car spares company LBCarCo.

MG MGB Technical - shims

rebuilding the head and rocker assembly on my 12h1326 head and it calls for shims on the two center rocker brackets on the 18GB series engine, what is the reason for them
PETE CERKA

Isn't it so the rocker shaft is very slightly bent to stop it rotating or something like that?

Chris or Peter or someone will know the proper answer I am sure!
Simon Jansen

Pete, what is "it" that calls for these?
Art Pearse

I believe they are supposed to be there to impart a small amount
of force on the rocker shaft so that it doesn't rattle and chafe
in the bores of the support pillars.
Daniel Wong

art
it is the moss catalog
PETE CERKA

They were added to alter engine to stop the rocker shaft twisting and fretting in the supports by in effect trying to put a slight bend on the shaft. It is also recommended they be retro-fitted to earlier engines (or any engines that don't have them), 'it' being the workshop manuals.
Paul Hunt

This thread was discussed between 02/08/2009 and 03/08/2009

MG MGB Technical index

This thread is from the archives. Join the live MG MGB Technical BBS now