RBH Posted May 1, 2018 Share Posted May 1, 2018 I recently bought a 53 Mack A54. The treadle valve will need replaced. This truck has front brakes so I was wondering if anyone here knows where and what valve I will need to replace the original with? I would like to keep it original as possible. Quote Link to comment https://www.bigmacktrucks.com/topic/53261-53-a54/ Share on other sites More sharing options...
carlotpilot Posted May 1, 2018 Share Posted May 1, 2018 (edited) somebody knows i`m sure good luck little weather beaten but that ole rig looks to be in good shape Edited May 1, 2018 by carlotpilot Quote Link to comment https://www.bigmacktrucks.com/topic/53261-53-a54/#findComment-397984 Share on other sites More sharing options...
Rob Posted May 1, 2018 Share Posted May 1, 2018 I think my A-40 has an E-3 series valve in it but I'll try to remember to verify. I had found a kit to go through mine, (20 or so years ago) but never needed to and it seems like that was the nearest valve in appearance. Quote Plodding along with no job nor practical application for my existence, but still trying to fix what's broke. Link to comment https://www.bigmacktrucks.com/topic/53261-53-a54/#findComment-398006 Share on other sites More sharing options...
RBH Posted May 1, 2018 Author Share Posted May 1, 2018 Thanks. I have attached photos of the valve here removed. Its a Bendix Westinghouse and has a number on it of 230870. Quote Link to comment https://www.bigmacktrucks.com/topic/53261-53-a54/#findComment-398010 Share on other sites More sharing options...
Rob Posted May 1, 2018 Share Posted May 1, 2018 That valve look familiar but I've never had mine out of the truck. I'll be out to the shop in a bit and have a look see. Quote Plodding along with no job nor practical application for my existence, but still trying to fix what's broke. Link to comment https://www.bigmacktrucks.com/topic/53261-53-a54/#findComment-398012 Share on other sites More sharing options...
Hobert62 Posted May 2, 2018 Share Posted May 2, 2018 I bought a new replacement for my B on ebay awhile back and I don't think it was that expensive. I think it was an E3 Quote Link to comment https://www.bigmacktrucks.com/topic/53261-53-a54/#findComment-398051 Share on other sites More sharing options...
RBH Posted May 2, 2018 Author Share Posted May 2, 2018 That seams to be the one that will work. I will just have to reshape the lines going in. Does your B have the maxi-brakes? I am hoping to replace the gasket in my old non-maxi style brake chambers and get them back in working order. Just wondering if anyone has had any luck doing that. I have a lot of fixing or manufacturing to do on this A since I am finding so many parts are obsolete. Thanks Quote Link to comment https://www.bigmacktrucks.com/topic/53261-53-a54/#findComment-398069 Share on other sites More sharing options...
Hobert62 Posted May 2, 2018 Share Posted May 2, 2018 Yes my B has maxi's. it has axles from a modern freightliner under it. From whit I remember the treadle valve is it only had 2 compartments internally. The top half was wide open and all ports where supply and the bottom half where all going to the brakes. I could have the upper and lower mixed up, but they where both just open cavities with different ports all around the body. Quote Link to comment https://www.bigmacktrucks.com/topic/53261-53-a54/#findComment-398098 Share on other sites More sharing options...
RBH Posted May 2, 2018 Author Share Posted May 2, 2018 Thanks. Really appreciate the info. Quote Link to comment https://www.bigmacktrucks.com/topic/53261-53-a54/#findComment-398100 Share on other sites More sharing options...
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