farmer52 Posted December 14, 2012 Share Posted December 14, 2012 Thanks for the pics. Give the Mack museum a call with your VIN. They can tell you alot about the truck. Quote Ken PRR Country and Charter member of the "Mack Pack" Link to comment Share on other sites More sharing options...
thomastractorsvc Posted December 14, 2012 Share Posted December 14, 2012 check the governer and filter start there first Quote Robert"I reject your reality and substitute my own." Link to comment Share on other sites More sharing options...
other dog Posted December 15, 2012 Share Posted December 15, 2012 Welcome!I guess I'll have to be the first to ask:What part of Ohio are you from?Do you any any pictures of your Superliner? Most members on here are not interested in pictures, but a few of us are." Many great people here and a few whack jobs."see, there's one already. Quote Producer of poorly photo-chopped pictures since 1999. Link to comment Share on other sites More sharing options...
Superdog Posted December 15, 2012 Share Posted December 15, 2012 Beautiful Superliner,it will serve you well for decades.Like was already mentioned,check the air governor,that's the cheapest place to start.Any leaks your not finding??I wouldn't think the compressor would be bad with that low of mileage.you never mentioned what engine you have. Quote Link to comment Share on other sites More sharing options...
Buickwrench Posted December 15, 2012 Author Share Posted December 15, 2012 E9 V8. Seems to be better as the truck warms up. I am unfamiliar with air brakes. I think I found the governor behind the compressor. Round aluminum piece. I am a ASE Master, but have limited heavy duty experience. I bought a service info CD on EBay , but it dosen't navigate easily and seems to be missing a lot of info on the diagnostic starting point and path. Can anyone give me a brief description and operation of this system? Once I understand how it works, I'm sure I can repair it. Quote Link to comment Share on other sites More sharing options...
Freightrain Posted December 15, 2012 Share Posted December 15, 2012 E9 V8SWEET!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!Basically, the governor is just like on a shop compressor, only it just pushes on the "unloader" which holds the valves open so the pump freewheels(instead of shutting it off like a shop compressor). If the spool valve portion gets sticky and won't move, or the O rings get dry and leaks by it won't function properly.Here is a post on my recent rebuild:http://www.bigmacktr...ulatorwore-out/You need to join up with the NEO chapter of the ATHS. https://sites.google...ochapterofaths/ Bring that bad boy to our show in Ashland next June!!!This years show: https://sites.google...-truck-jamboreeHeck, if you need someone to drive it there..............I'm available LOL! Quote Larry 1959 B61 Liv'n Large...................... Charter member of the "MACK PACK" Link to comment Share on other sites More sharing options...
Green Dash Posted December 15, 2012 Share Posted December 15, 2012 That was a great find and it's good to see it in the hands of someone who will both work it and take good care of it. I want you to know that I almost never had any doubts about you owning this this truck." Many great people here and a few whack jobs."see, there's one already. A true whack job would take that as a compliment. BTW, that was very kind of you to say. Quote Jim Link to comment Share on other sites More sharing options...
BC Mack Posted December 16, 2012 Share Posted December 16, 2012 E9 V8. Seems to be better as the truck warms up. I am unfamiliar with air brakes. I think I found the governor behind the compressor. Round aluminum piece. I am a ASE Master, but have limited heavy duty experience. I bought a service info CD on EBay , but it dosen't navigate easily and seems to be missing a lot of info on the diagnostic starting point and path. Can anyone give me a brief description and operation of this system? Once I understand how it works, I'm sure I can repair it.Buickwrench.... really nice wrecker...here is some info you may find useful to get your head around air systems.....the test is on Friday..!!!! http://www.wsafc.org...ke Handbook.pdfsee page 10Bendix D2http://www.bendixvrc...documentID=2694Bendix document library, select item in 'search'..http://www.bendix.co...ry/doclib_1.jspthere's also some interesting 'how to' video's on youtube too, just got to sort the tecky from the hillbilly stuff..self help, Google "Bendix air", and away you go..!!!and don't forget to get a good pre-trip guide for your truck, lots of air system problems can be found by doing this correctly..... before you hit the road. HTHBC Mack Quote Link to comment Share on other sites More sharing options...
vision386 Posted December 16, 2012 Share Posted December 16, 2012 I was thinking a" whackjob" was something else entirely..................nevermind!..............Mark Quote Mack Truck literate. Computer illiterate. Link to comment Share on other sites More sharing options...
JTFormula Posted December 17, 2012 Share Posted December 17, 2012 Holy crap that thing is gorgeous! That is one hell of a wheel lift! That's an incredible find. You are lucky to be its keeper. Quote ~ JT Burkard ~ AKA Sweaty Mackwww.jtresto.com www.wickedreputation.netwww.jonathanthomasmotorcars.com Link to comment Share on other sites More sharing options...
Buickwrench Posted December 17, 2012 Author Share Posted December 17, 2012 Thank you all! Removing the governor today to inspect. YouTube videos very informative. I will keep you guys posted on the repairs. The drivers side step wasn't made to support 375#. one of my drivers has a slight weight problem. I am going to fab up a brace. Anyone have some shifting tips for the 12 speed? I do ok upshifting and splitting, but downshifting for a rolling turn is still pretty tough. Nothing like a 9 speed Fuller. Also, on the upshift, do I click back to direct in neutral? Quote Link to comment Share on other sites More sharing options...
Freightrain Posted December 17, 2012 Share Posted December 17, 2012 Before you pull it off, you might want to check operations. The line going to the compressor head should have NO air going to it when you start truck(with basically no air pressure yet). The govenor should hold back til you get to 120#, then it should allow air to go to compressor head(unloader). Once it drops down to 90#, it should shut air off again til it builds up. That govenor is an air switch basically.If you remove the line going to compressor, start truck, and get air from that line. The govenor is bad. Quote Larry 1959 B61 Liv'n Large...................... Charter member of the "MACK PACK" Link to comment Share on other sites More sharing options...
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