Popular Post mack31 Posted August 3, 2023 Popular Post Share Posted August 3, 2023 New to us is this 1951 Mack 85 LS 1522. Original to Goodwill Fire Co. of Bridgeport PA. Appears to have been red originally and later painted Kelly green. 5 Quote Link to comment https://www.bigmacktrucks.com/topic/73121-1951-mack-85-ls-1522/ Share on other sites More sharing options...
609albert Posted August 3, 2023 Share Posted August 3, 2023 where is it now Quote Link to comment https://www.bigmacktrucks.com/topic/73121-1951-mack-85-ls-1522/#findComment-536202 Share on other sites More sharing options...
mack31 Posted August 4, 2023 Author Share Posted August 4, 2023 21 hours ago, 609albert said: where is it now Avondale PA Quote Link to comment https://www.bigmacktrucks.com/topic/73121-1951-mack-85-ls-1522/#findComment-536255 Share on other sites More sharing options...
mack31 Posted August 4, 2023 Author Share Posted August 4, 2023 The wiring is a mess. I have no head lights, brake lights or emergency lights. All of the fuses I can find are in good condition. Any help is appreciated. The speedometer does not work either any tips let me know. Quote Link to comment https://www.bigmacktrucks.com/topic/73121-1951-mack-85-ls-1522/#findComment-536256 Share on other sites More sharing options...
mrsmackpaul Posted August 4, 2023 Share Posted August 4, 2023 Well something in common to all of the above is most likely the culprit I would check the grounds, or earth or what ever you blokes in yanky land call the frame/chassis side of the battery, can't say negative or positive as I dunno if it's negitive ground or not Either way, pull some of these off and try cleaning them up and see what happens then Paul 1 Quote Link to comment https://www.bigmacktrucks.com/topic/73121-1951-mack-85-ls-1522/#findComment-536257 Share on other sites More sharing options...
mack31 Posted August 4, 2023 Author Share Posted August 4, 2023 It is negative ground. With one 12v battery. There are new wires and old wires and some in bad condition Quote Link to comment https://www.bigmacktrucks.com/topic/73121-1951-mack-85-ls-1522/#findComment-536264 Share on other sites More sharing options...
mrsmackpaul Posted August 4, 2023 Share Posted August 4, 2023 Does it have any power anywhere? Paul Quote Link to comment https://www.bigmacktrucks.com/topic/73121-1951-mack-85-ls-1522/#findComment-536265 Share on other sites More sharing options...
mack31 Posted August 4, 2023 Author Share Posted August 4, 2023 Yes the 2 ignition switches, starter button and the siren (which I could trace the new wire. Quote Link to comment https://www.bigmacktrucks.com/topic/73121-1951-mack-85-ls-1522/#findComment-536268 Share on other sites More sharing options...
Popular Post mrsmackpaul Posted August 4, 2023 Popular Post Share Posted August 4, 2023 Okay, so both of these have new wires I gather If thats the case back to basics You need a test lamp, not a multimeter or any fangled thing Anything other than a test lamp is only helpful to someone that knows about and is trained in electricity, if you don't a have a full a proper understanding your wasting your time with a multimeter, digital is even worse Right a test lamp like this Simple, basic and old school Start at the battery and perform the most important test, test the test lamp Then one lead on the positive, test to the frame of the truck, it should light up Then to the cab, it should light up You need to scratch a bit of paint off to make a good connection, choose somewhere not obvious Once you have established the cab is grounded, test as close to the fuse panel as you can to prove the ground to somewhere around the fuse panel on the cab, once this ground is established Take the aligator clip off the battery positive and clamp it to that ground Then with probe end of the test lamp, see if you have any power at the fuse panel Then report back with your findings and maybe a photo or two describing your findings And if you get anything thats a bit suss or iffy, take a step back prove the test lamp again and start again, electricity is either on or off, no in between so a dicky reading tells you your lamp alligator clip might not be grounded properly or something has changed Paul 3 Quote Link to comment https://www.bigmacktrucks.com/topic/73121-1951-mack-85-ls-1522/#findComment-536271 Share on other sites More sharing options...
609albert Posted August 5, 2023 Share Posted August 5, 2023 Paul said it best ,start with the test lamp probe. their should be a junction box on the firewall (in engine compartment) with the main power switch on the box (terminat) should have power. check the positive & ground connections . It sounds like their is no power to the junction box . I would try connecting a jumper wire (#10 ) from the negative side of battery to the junction box. 2 Quote Link to comment https://www.bigmacktrucks.com/topic/73121-1951-mack-85-ls-1522/#findComment-536304 Share on other sites More sharing options...
609albert Posted August 6, 2023 Share Posted August 6, 2023 Also their might be a fuse in line before the terminal box , who knows how electrical things where do in the past, just keep at it and narrow the feed down . Keep the group posted on your findings 1 Quote Link to comment https://www.bigmacktrucks.com/topic/73121-1951-mack-85-ls-1522/#findComment-536339 Share on other sites More sharing options...
mack31 Posted August 6, 2023 Author Share Posted August 6, 2023 Will do thank you for the help. The fuse box is in great condition. I have to check the large fuse above the fuse box looks like a shotgun shell. Looking for someone to tackle the wiring if you know someone. Would like to take out what’s not being used and clean it up. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/73121-1951-mack-85-ls-1522/#findComment-536346 Share on other sites More sharing options...
mrsmackpaul Posted August 6, 2023 Share Posted August 6, 2023 Mate, I would happily pop on over and do it if you shout the airfare I won't charge for the work I do as long as you give me a shady corner to snooze in That gets me to Yanky land, I'll stick my thumb out the rest of the way lol A good looking rooster like me shouldn't have any drama bumbing a ride But if you work slowly thru it, I'm more than happy to help you along the way Paul 1 Quote Link to comment https://www.bigmacktrucks.com/topic/73121-1951-mack-85-ls-1522/#findComment-536352 Share on other sites More sharing options...
mack31 Posted August 6, 2023 Author Share Posted August 6, 2023 As we work through the electrical issues we are going to multitask. the steering is loose, we can turn the steering wheel a quarter turn with no movement of the wheel. What do I look for first Quote Link to comment https://www.bigmacktrucks.com/topic/73121-1951-mack-85-ls-1522/#findComment-536388 Share on other sites More sharing options...
D-Day Posted August 6, 2023 Share Posted August 6, 2023 Adjustable drag link between the pitman arm and the spindle and tie rod ends first place to look then go to the steering box Quote Link to comment https://www.bigmacktrucks.com/topic/73121-1951-mack-85-ls-1522/#findComment-536391 Share on other sites More sharing options...
mowerman Posted August 6, 2023 Share Posted August 6, 2023 Got the same problem with mine. Oh sector shaft bushing. I’m still trying to find one haven’t really been looking too hard. Quote Link to comment https://www.bigmacktrucks.com/topic/73121-1951-mack-85-ls-1522/#findComment-536394 Share on other sites More sharing options...
mowerman Posted August 6, 2023 Share Posted August 6, 2023 I have been looking online at Seems at least . A couple of outfits pop up that still deal with ancient artifacts like we have … bob Quote Link to comment https://www.bigmacktrucks.com/topic/73121-1951-mack-85-ls-1522/#findComment-536401 Share on other sites More sharing options...
mowerman Posted August 6, 2023 Share Posted August 6, 2023 As far as electrical issues, just a matter of time, you just might have dirty connections somewhere… truck is gorgeous… if I haven’t mentioned that … Bob Quote Link to comment https://www.bigmacktrucks.com/topic/73121-1951-mack-85-ls-1522/#findComment-536402 Share on other sites More sharing options...
mowerman Posted August 6, 2023 Share Posted August 6, 2023 19 hours ago, mrsmackpaul said: Mate, I would happily pop on over and do it if you shout the airfare I won't charge for the work I do as long as you give me a shady corner to snooze in That gets me to Yanky land, I'll stick my thumb out the rest of the way lol A good looking rooster like me shouldn't have any drama bumbing a ride But if you work slowly thru it, I'm more than happy to help you along the way Paul OK that’s just hilarious… Paul I pretty much feel the same way. I think the closest guy to me on here is 450 miles away. There used to be a fellow on here third wright brother I could walk to his house. I actually met him one time, walking his dogs but he quit posting years back for some reason. I know some of you fellas remember him Russ Quote Link to comment https://www.bigmacktrucks.com/topic/73121-1951-mack-85-ls-1522/#findComment-536403 Share on other sites More sharing options...
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