Re: [AMC-List] 1975 -6 Hornet/Gremlin MC Specs

[farna@xxxxxxx]

All I can remember is that they are standard tubing size. I know that doesn't help much! The more important thing is what sizes are on the 60. You should have a single junction block with five positions, or one with four and another T. The five positions are one IN from MC, two OUT to the front brakes, one OUT to the rear brakes, and the fith OUT to the pressure brake light switch. The switch might be in a T in one of the lines, most likely the between the MC and junction block. There is no brake failure switch or light, that didn't come out until 1967. You can add one easy enough if you wanted, just use the junction block from a 67 or later car (or a combo valve) and find somewhere to put the light on the dash. 

You will need to replumb the lines from the junction block back to the MC. All you really need is two Ts -- on for the front brakes, one for the back. Put the pressure switch in the T going to the back brakes. You will have new lines from the T to the MC. Adapters for standard brake line sizes should be readily available. The line to the back is 1/4", the front line might be 1/4", but if you have a disc brake MC and are using disc brakes from a later model, it's more likely to be 5/16" to the T then 1/4" to each wheel. You should be able to get a T with a 5/16" fitting in the center and two 1/4" fittings, might be called a "trailer T" or "brake T". It's been a while since I had to do a lot of adapting! You might need to go to a NAPA or local parts store that caters to racers to find the adapters, but the more common ones are carried by most stores on the racks. You should be able to find everything you need since you're using a new model MC. Some of the older ones, like the !
 62-64 (
maybe later) original dual MCs AMC used, have odd size fittings. Those old dual MCs have a large flare nut (about 3/8") with a small 1/4" line in it for the front to prevent crossing the lines. I adapted a few, but have since taken to removing the line back a the junction block and bending a new line. Fewer adapters (if any) that way!

--------------------------
Date: Mon, 18 Dec 2006 16:18:17 +0000
From: "johnny kazek" <johnnykazek@xxxxxxxxxxx>
Subject: [AMC-List] 1975 -6 Hornet/Gremlin MC Specs

   Wondering if anyone who has this type of Master Cylinder might be able
   to tell me the size tubing out of the reservoirs.   I'm converting to
   this MC on my 60 Rambler Wagon (from single reservoir), part won't be
   here for a week, so I'm trying to get the lines run and in place so I
   can drop it in.

   Thanks for your help-   Johnny

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