Phyrphighter Posted August 5, 2008 Share Posted August 5, 2008 I have a recently aquired 1942 Mack LS type 80 with vacuum assisted brakes. While investigating why this rig was so hard to stop I have found that I am missing the linkage that runs from the vacuum assist cylinder near the rear of my truck to the “power lever” near the master cylinder. Do you have – or do you know where I might find this linkage ? Also - Does anyone have or rebuild the vacuum components if i find they are unusable ? Finding the linkage is Job 1. I have attached a diagram showing what I need. Quote Link to comment https://www.bigmacktrucks.com/topic/4076-brake-parts-1942-80-ls-fire-truck/ Share on other sites More sharing options...
Charlie Hatfield Posted August 5, 2008 Share Posted August 5, 2008 Try someone on-line like McMaster Carr for that piece Quote Link to comment https://www.bigmacktrucks.com/topic/4076-brake-parts-1942-80-ls-fire-truck/#findComment-21092 Share on other sites More sharing options...
bmodelsrus Posted August 7, 2008 Share Posted August 7, 2008 we use power brake xchange in pittsburg pa they have rebuild units back into the 20s for us. power steering units ,vacuum , units, power brake and master cylinder units also. call me ,i dont have phone number in front of me at the moment call 203 266 6455 ask for matt Quote Link to comment https://www.bigmacktrucks.com/topic/4076-brake-parts-1942-80-ls-fire-truck/#findComment-21123 Share on other sites More sharing options...
James Baron Posted August 24, 2017 Share Posted August 24, 2017 Where did you get get the brake diagram? I volunteer at the AACA Museum in Hershey and we just got a 1938 Mack fire truck. We want to make sure the brakes are safe as we plan to use the truck for parades. None of us are very familiar with the vacuum assisted brakes on Macks. It would be helpful to us to know the names and functions of the different components. Knowing what vacuum readings are OK would be helpful too. Thanks. Jim Quote Link to comment https://www.bigmacktrucks.com/topic/4076-brake-parts-1942-80-ls-fire-truck/#findComment-378273 Share on other sites More sharing options...
Hobert62 Posted August 26, 2017 Share Posted August 26, 2017 I go by your museum nightly and the roadway outfit parked out front looks pretty neat. Quote Link to comment https://www.bigmacktrucks.com/topic/4076-brake-parts-1942-80-ls-fire-truck/#findComment-378367 Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.