[Mgs] Spanner/wrench size for MGA wheel cylinder

Simon Matthews simon.d.matthews at gmail.com
Mon May 25 16:20:35 MDT 2015

I tried an 8mm. This would not fit, so I filed it down until it would
fit. However, because of the angle, I could not get a good purchase on
the bolt head, which appears to be rusted in place.

Perhaps a deep 11/32 socket (with narrow walls) will work. Brake fluid
is quite flammable, so I am reluctant to apply heat. I have put some
releasing fluid (Busty) on it and will leave it for some time.

I have ordered a thin-walled 11/32 socket. Hopefully that will solve
the problem.


On Mon, May 25, 2015 at 2:04 PM, Alan Kellogg <aekell at aol.com> wrote:
> update if your still looking:
> seems to be 11/32" but 8mm will most likely work.
> Alan
> -----Original Message-----
> From: Simon Matthews via Mgs <mgs at autox.team.net>
> To: MGS <mgs at autox.team.net>
> Sent: Sun, May 24, 2015 7:08 pm
> Subject: [Mgs] Spanner/wrench size for MGA wheel cylinder
> I am in the process of swapping out a leaking wheel cylinder. I was
> able to
> remove the larger of the two bolts that hold the cylinder onto
> the backing
> plate, but I could not find a spanner to fit the smaller
> of the two. I tried
> both Imperial and Metric spanners, but the spanner
> would either not go around
> the bolt head, or was too large to turn it.
> Since this is on the back of the
> backing plate, I am working by feel.
> What size spanner do I need? Is it a
> Whitworth
> size?
> Simon
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