Full Floater Posted June 28, 2015 Author Share Posted June 28, 2015 (edited) And do the fuel tanks interchange from drivers side to passenger side? The tank truck needs a passenger side fuel tank and the parts truck only has a drivers side tank Edited June 28, 2015 by Full Floater Quote Link to comment https://www.bigmacktrucks.com/topic/40631-my-first-r-model/page/2/#findComment-294881 Share on other sites More sharing options...
Full Floater Posted June 28, 2015 Author Share Posted June 28, 2015 Just went to look at it and they aren't Mack diffs unfortunately. So the hubs probably wont swap over as easy as I hoped. Quote Link to comment https://www.bigmacktrucks.com/topic/40631-my-first-r-model/page/2/#findComment-294910 Share on other sites More sharing options...
Full Floater Posted July 4, 2015 Author Share Posted July 4, 2015 Mine is leaking out the back seal or O ring on the reservoir. There are two nuts holding it together and they are tight. Is there an O ring behind there that could fail? Will anything fly out at me if I pull the back part of the reservoir off? Quote Link to comment https://www.bigmacktrucks.com/topic/40631-my-first-r-model/page/2/#findComment-295454 Share on other sites More sharing options...
Full Floater Posted July 23, 2015 Author Share Posted July 23, 2015 Im still having issues downshifting from OD into direct, without changing the main gears. Am im supposed to clutch and at the same time, increase the rpm to match as I select direct, then release clutch? I now have the upshifting pretty darn smooth and im happy about that!!! Thanks Quote Link to comment https://www.bigmacktrucks.com/topic/40631-my-first-r-model/page/2/#findComment-297603 Share on other sites More sharing options...
mrsmackpaul Posted July 23, 2015 Share Posted July 23, 2015 no clutch flick the switch and on and on off the go pedal it should slip right in maybe a air pressure issue or maybe some gunk on the shaft if the truck hasnt been driven a lot foor some time Quote Link to comment https://www.bigmacktrucks.com/topic/40631-my-first-r-model/page/2/#findComment-297627 Share on other sites More sharing options...
Full Floater Posted July 23, 2015 Author Share Posted July 23, 2015 Hmmm ok. I will try some more and see if I can get it. It just seems that if I preselect, it will grind during the second or two that it takes to achieve the desired rpm. Maybe this is normal? I just cringe every time I hear it. Quote Link to comment https://www.bigmacktrucks.com/topic/40631-my-first-r-model/page/2/#findComment-297635 Share on other sites More sharing options...
mrsmackpaul Posted July 24, 2015 Share Posted July 24, 2015 maybe the air regulator is not set right for that side or the air ram o rings are leaking to much air unscrew the the air hoses on top of the lid and squirt some CRC or WD 40Paul Quote Link to comment https://www.bigmacktrucks.com/topic/40631-my-first-r-model/page/2/#findComment-297713 Share on other sites More sharing options...
Full Floater Posted July 24, 2015 Author Share Posted July 24, 2015 On the top lid of the tranny? Quote Link to comment https://www.bigmacktrucks.com/topic/40631-my-first-r-model/page/2/#findComment-297738 Share on other sites More sharing options...
mrsmackpaul Posted July 24, 2015 Share Posted July 24, 2015 the back lid on top of transmission depending on how it has been set up it will have either one air regulator or two the pistons and O rings can be changed with out pulling the lid off on mine I can get the lid off mine just with out dropping the transmission or lifting the cab I have gotta pull the floor out of the cab to do this and huge amount of swearing follows and skinned knuckles Paul Quote Link to comment https://www.bigmacktrucks.com/topic/40631-my-first-r-model/page/2/#findComment-297746 Share on other sites More sharing options...
Full Floater Posted July 24, 2015 Author Share Posted July 24, 2015 Ahhhh one of those tasks, I see! Ok maybe I will tackle that if I feel that I have had enough practice and its still not as smooth as I would like. I have the two pistons...at least I think that's what I see.Here is a picture of the truck performing its first paid job 1 Quote Link to comment https://www.bigmacktrucks.com/topic/40631-my-first-r-model/page/2/#findComment-297758 Share on other sites More sharing options...
Full Floater Posted August 2, 2015 Author Share Posted August 2, 2015 And what is the filter for that is mounted off the top rear of the transmission with all the little air lines running to it? Does anyone have a part number for it and filter change interval opinions? Quote Link to comment https://www.bigmacktrucks.com/topic/40631-my-first-r-model/page/2/#findComment-298749 Share on other sites More sharing options...
gearhead204 Posted August 2, 2015 Share Posted August 2, 2015 the small one should be the air pressure regulator, there should also be a air filter mounted to a bracket on the rear of the trans it looks like a spin on oil filter, drain the air tanks brfore removing! local parts store should be able to get you one if a dealer isnt close. Quote Link to comment https://www.bigmacktrucks.com/topic/40631-my-first-r-model/page/2/#findComment-298751 Share on other sites More sharing options...
Full Floater Posted August 2, 2015 Author Share Posted August 2, 2015 Yeah that's the one, the spin on one. I'll see what I can find thanks. Does lube need to be applied to the seal when installing? Is there any way or need to lube the air valves when the filter is off? Quote Link to comment https://www.bigmacktrucks.com/topic/40631-my-first-r-model/page/2/#findComment-298775 Share on other sites More sharing options...
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