The old drum brakes....again

[jdhcth]

Recently my front manual drum brakes on my 67 LWB started to fade. The brake light would come on when I pressed hard. It would brake unevenly so I figured it need wheel cylinders(they look original) and new shoes.

In the last 2 months I had installed a new MC so upon putting new wheel cylinders and shoes on I figured my problems were over. Well they weren't.

Just got it all back together, bled 'em and test drove. The hardly work at all. I was out of ideas. I let it set for a while, and tried it again.....they were BETTER! What the????? But at the end of the 2nd test drive the were fading again.

This sounds like they need more bleeding but I've bled and bled.

The drums don't look bad, I have not had them turned yet. ANY IDEAS?

My proportioning valve seems to be letting plenty of fluid down, when I bleed there is a lot of fluid. It does not have the little needle valve on the front of it like some models. OH and my brake light doesn't come on anymore.

Thanks,
JD