Nasty Wendy Isn't
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the front disc brake calipers require more fluid for operation than do the rear drum brakes. this means the larger m/c reservoir is meant to be connected to the front brakes.
I finally switched over from powermaster to vacuum brake system, both brake line fittings are the same, so would it make a difference if the rear brake lines is attached to the front master cylinder, or should the rear brake lines be connected to the master cylinder fitting closest to the firewall?
Quote from: gnonyx on February 06 2020, 02:01:30 PMI finally switched over from powermaster to vacuum brake system, both brake line fittings are the same, so would it make a difference if the rear brake lines is attached to the front master cylinder, or should the rear brake lines be connected to the master cylinder fitting closest to the firewall?If I recall, they can only go on one way. The hex is the same, 9/16", but one fitting is larger than the other.
Quote from: john robertson on February 07 2020, 08:16:17 PMQuote from: gnonyx on February 06 2020, 02:01:30 PMI finally switched over from powermaster to vacuum brake system, both brake line fittings are the same, so would it make a difference if the rear brake lines is attached to the front master cylinder, or should the rear brake lines be connected to the master cylinder fitting closest to the firewall? If I recall, they can only go on one way. The hex is the same, 9/16", but one fitting is larger than the other.You may be right, but both brake lines fit right into the vacuum master cylinderWhen I was gravity bleeding the passenger rear wheel the front/larger master bowl was running low. This means my master cylinder brake lines are backward. My photo shows the brake fittings are backward. This weekend I have to replace the passenger rear drum brake wheel cylinder. I'm also going to replace all of the brake bleeders with Russell Speed Bleeder.
Quote from: gnonyx on February 06 2020, 02:01:30 PMI finally switched over from powermaster to vacuum brake system, both brake line fittings are the same, so would it make a difference if the rear brake lines is attached to the front master cylinder, or should the rear brake lines be connected to the master cylinder fitting closest to the firewall? If I recall, they can only go on one way. The hex is the same, 9/16", but one fitting is larger than the other.
I seem to remember there was difference in the master cylinders between G/B bodys. I think the B body master fits but the line sizes are reversed in sizes. I bought adapter fittings to correct it.