[AMRadio] Suggestions for restoring a DX-100

[Todd Bigelow - PS]

w5omr wrote:

> : > Automotive brake fluid used to contain PCB.  Think of the tons of it that
> : > entered the environment all those decades (ever notice how you have to top
> : > off your master cylinder from time to time, let alone ruptured and leaky
> : > brake cylinders and lines, etc... guess where all that PCB went).
> :
> :            I would have to disagree with some of the above. The reason
> : you see lower fluid levels in the master cylinder is caused by brake pad/shoe
> : wear. As the pads wear, the caliper pistons have to move further out in their
> : bores to effect braking. This takes more brake fluid..........VOILA, lower
> : levels in the master cylinder. ANY leak in the brake hydraulic system (however
> : small), would introduce AIR into the brake system. This would bring about
> major
> : problems very
> : quickly.
>
> You never 'bled' the brake lines, to get the air out?
>
> where did the fluid go?
>
> 73 = Best Regards,
> -=Jeff/W5OMR=-

Into the glass jar half full of fluid that the plastic tube was inserted into -
bleed out until the bubbles stop, then tighten. Use the fluid later for same or top
off master cylinder.

Now, British cars had natural rubber seals as I recall that were easily consumed by
the incorrect fluid, and even using the correct Castrol stuff, they tended to get
weepy and soggy over time. Then there were those times you spilled a bit while
topping off. I've had the stuff rolling down my arms before beneath a vehicle and
I'm still here (so far).

I have an AR-88LF and CR-91A here, both of which appear to have good oil-filled caps
in the back. One is a bit....damp looking in a few spots, but not what I'd call
really leaking. They both work just fine, so I'm inclined to let sleeping dogs lie.
I've warned other users about the PCB potential as well, but for the same reason
that Don and others metnioned: best not to make a multi-million dollar project out
of it by crying to the wrong person about it. They do the same thing if you want to
scrape your house to repaint and it has old lead paint, so...beware! My house is
old, but it has latex and oil based paint on it....everywhere. I'm certain of it...
*nod*

73 de Todd/'Boomer'  KA1KAQ