Some of you may know that I have spent the last
several months of available time and energy preparing my Works MGA for
the Collier Cup race last month.
This is a car with about 5400 original miles
recorded, most of which are race miles I suppose. Of course, the barely
functioning brakes were tops on the priority list and received a
thorough inspection and overhaul.
Now, I have replaced many a hydraulic hose over time
on MGs, but I never took the time to photograph a dissected one to
show what happens after nearly 5 decades of even limited use.
The point here is for you to make it a point to know
these things about your car. Most newer brake hoses have a date stamp. I
am not sure when that was required, but if yours show no date, then you
may want to think about replacing them (all 3 at the same time), if the
age is uncertain.
The usual failure is one of hydraulic pressure not
releasing when brake pedal pressure is released, causing brake drag.
Another failure, much more dangerous but rare, is one of the hose
actually separating from the end fitting. Not good on single cylinder
See the below photos of my brake hose, which I split
and opened up. You can see that the innards (technical term) have turned
to jelly and could not possibly function safely or effectively.