[Mgs] banjo axle breather dilemma

[mgbob at juno.com]

  The vent holes in the axles of T-series cars are protected by the strap that secures brake line to the axle. It seems crude, but I can think of no complaints about dirt in the axle tube.     If you can not find the fitting that threads in, you might try covering the hole using a hose clamp, perhaps with a piece of scotch-brite to provide a bit better air pressure adjustment and dirt exclusion. 
Bob
---------- Original Message ----------
From: dcouncill via Mgs <mgs at autox.team.net>
To: <mgs at autox.team.net>, <mg-mgb at yahoogroups.com>
Subject: [Mgs] banjo axle breather dilemma
Date: Sat, 11 Jul 2015 17:00:11 -0700


I am working on the rear axle of a 64 MGB. After a routine check of the car, I had noticed a small oil leak from the oil seals on both sides which lead me to suspect pressure buildup due to a plugged breather. First sign of trouble was that I couldn’t locate the breather because there wasn’t one with the hole buried under an oil/dirt buildup. I cleaned off the sludge and located the breather hole and cleaned it out as best possible with the axle in the car. Then I went to install Moss part 267-040 rear axle breather but it wouldn’t fit – too large. A check of Moss catalog shows it to be the correct part for both banjo and Salisbury axles. The hole is threaded but too small for a 5/16” bolt but too large for ¼”. Also, the 5/16” bolt fits just within the inner diameter of Moss part 267-040.
 
I happen to have a couple of spare banjo rear axles so I checked them and both of them have the larger holes and the Moss part fits. However, they are also wire wheel banjo axles whereas the one on the 64B is for disc wheels. Does anyone have an idea what thread size this early banjo axle might be using? Or suggestions on how I can establish a vent with another part of some kind?
 
David Councill
64 B
67 BGT
72 B
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