Quote:
Originally Posted by bobH
Worse situation I've run into, is 'home-builts', where the fabricator routed a line from a high-mounted m/c, down to the frame, then, somewhere along the plumbing path, the line was routed higher (usually to go over something). This creates a place for air to collect, and a spongy pedal. Air won't work it's way out of one of these 'trapped' high spots. I have a friend with a Bonneville Studebaker, with the brakes plumbed this way. And, he is always fighting a spongy pedal. He can bleed, and bleed, and get a firm pedal one day. Next morning, it's spongy.
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It is a fairly common practice to place several loops into the brake lines near the master cylinder to reduce stress on them. I add them on all of my installs. The way I bleed brakes (which I thought was the way everyone did it until this thread, LOL), this doesn't present the slightest problem.