CRG Discussion Forum
Camaro Research Group Discussion => Decoding/Numbers => Topic started by: Terry69RSZ28 on November 03, 2016, 03:39:06 AM
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Hi Everyone,
Do 69 disc brake proportioning valves have any numbers or date codes on them?
Thanks for your expertise, Terry
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Yes, see photo... I believe the date code is encoded as: julian date - Yr .. (mine is '154 - 9') for the 154th day of 1969... Also 'K-H' for Kelsey Hayes and an 'R' for ...??.. rear?
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great pic Gary. Now you just gave me something to want to look at next time I am in front of my own..... :D
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Great article on brake valves right here: http://www.camaros.org/brakevalve.shtml
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Thank you very much for clarifying my question!
Much appreciated, Terry
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Absolutely ZLP... JohnZ's article is great and I refer to it often myself. (I should have remembered to refer to that in answering the OP's question)... :)
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So I have a question regarding the distribution block that turns the brake light on if there is a pressure differential between the 2 sides. Can this only occur when the brakes are applied? That is, can there be a pressure differential when the brake pedal is not being depressed? My brake light stays on whenever the distribution block wire is connected, and the ignition is on.. And I know that wire goes to ground. As if the internal spool which moves is permanently stuck somehow or touching gound?
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Can't answer your question Jimmy, but if it turns out your switch needs a rebuild, here's a great tech procedure from Muscle Car Research: https://www.musclecarresearch.com/gm-3956727-rebuild
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Thanks, I appreciate the info!! :D