[Healeys] Master Cylinder Packing Shims

John Spaur jmsdarch at sbcglobal.net
Tue Nov 9 11:24:25 MST 2021

It’s a shim, the guts are held in with a circlip.


From: Healeys [mailto:healeys-bounces at autox.team.net] On Behalf Of Bob Spidell via Healeys
Sent: Tuesday, November 9, 2021 9:46 AM
To: healeys at autox.team.net
Subject: Re: [Healeys] Master Cylinder Packing Shims


I think--not sure--the packing washer is the one that goes under the C-clip, which keeps the guts of the M/C inside. If it wasn't fitted, the first time you applied the brakes the innards could spill out on the floorboard.

My BJ8 came with a packing 'pieces' under the clutch cylinder, but I forgot to put it back in once and haven't missed it.


On 11/9/2021 8:56 AM, Harold Manifold via Healeys wrote:

Who knows what the purpose of the Master Cylinder Packing Piece is? There are 4 on the brake master cylinder and none on the clutch master cylinder. As far as I can tell the packing piece would reduce the distance the push rod can travel into the bore of the master cylinder. Is there an adjustment for the brake pedal and push rod that you use these packing pieces to set?


The workshop manual specifically mentions “not forgetting to fit the packing washer first” as part of the brake master cylinder installation.




Thanks… Harold




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