kscarbel2 Posted August 21, 2018 Share Posted August 21, 2018 Gee, do you think there's an issue there? Quote Link to comment https://www.bigmacktrucks.com/topic/52659-vibration-that-2-mechanics-and-mack-dealer-can%E2%80%99t-figure-out/page/14/#findComment-404594 Share on other sites More sharing options...
41chevy Posted August 21, 2018 Share Posted August 21, 2018 (edited) The one in the Bronx has been around for years if it is the one with the same chassis machine as Dutchman Diesel. Either way, with the time and money you have invested to this point having a reputable shop give you their opinion on it can't hurt and you will know exactly where you stand with it. As for the 2020 thing, I do a lot of County, State and Federal seawall and break water work at their park sites and was told for NYS Metro area contract bidding for government jobs , 2008 and newer equipment is required. Has to do with funding sources among other things. Edited August 21, 2018 by 41chevy Quote "OPERTUNITY IS MISSED BY MOST PEOPLE BECAUSE IT IS DRESSED IN OVERALLS AND LOOKS LIKE WORK" Thomas Edison “Life’s journey is not to arrive at the grave safely, in a well preserved body, but rather to skid in sideways, totally worn out, shouting ‘Holy shit, what a ride!’” P.T.CHESHIRE Link to comment https://www.bigmacktrucks.com/topic/52659-vibration-that-2-mechanics-and-mack-dealer-can%E2%80%99t-figure-out/page/14/#findComment-404595 Share on other sites More sharing options...
RobM626 Posted August 21, 2018 Author Share Posted August 21, 2018 2 hours ago, 41chevy said: The one in the Bronx has been around for years if it is the one with the same chassis machine as Dutchman Diesel. Either way, with the time and money you have invested to this point having a reputable shop give you their opinion on it can't hurt and you will know exactly where you stand with it. As for the 2020 thing, I do a lot of County, State and Federal seawall and break water work at their park sites and was told for NYS Metro area contract bidding for government jobs , 2008 and newer equipment is required. Has to do with funding sources among other things. Yea I guess your right ... the place I was referred to in the Bronx is textron. I’m gonna find out if they have that beeline machine. as far as the emissions goes, I heard that city and state work implemented that requirement a while ago. I picked up a couple of nice pieces of equipment for a bargain from guys that could no longer use it doing city and state work. The loader that hit my truck was one of them lol. 90% of my work is subcontracted through Con Edison and is in the 5 boroughs of the city. They havent required us to change yet but like I said I think it’s coming 2020. I dont wanna get stuck with like 5 trucks that I have a decent amount of Money invested in and not be able to use them or sell them because the local market will probably be flooded with them. Quote Link to comment https://www.bigmacktrucks.com/topic/52659-vibration-that-2-mechanics-and-mack-dealer-can%E2%80%99t-figure-out/page/14/#findComment-404601 Share on other sites More sharing options...
mrsmackpaul Posted August 22, 2018 Share Posted August 22, 2018 On 8/19/2018 at 6:54 AM, RobM626 said: It has to be something with how the clutch and transmission are lining up. It changes constantly throughout the day. The clutch will go a lot softer than usual and when that happens it feels like the power/torque isn’t going to the wheels. The take off from stop also sucks when that happens and the vibration gets worst. Then all of a sudden I’ll be driving and the clutch will get nice and firm again and it feels more torquey and the clunk when I press and release accelerator doesn’t appear as much. FFS , your clutch is binding , thats why your clutch aint lasting two tenths of SFA as its slipping when it's as soft as a custard tart(hence the shudder etc) The couple of lines of info you shared here is pretty important stuff Is the clutch cable, hydraulic, mechanical or air assist ???? Paul Quote Link to comment https://www.bigmacktrucks.com/topic/52659-vibration-that-2-mechanics-and-mack-dealer-can%E2%80%99t-figure-out/page/14/#findComment-404636 Share on other sites More sharing options...
RobM626 Posted August 22, 2018 Author Share Posted August 22, 2018 That’s exactly what it feels like. Every time I try to explain that to the guys that work on it they don’t get it... the linkage is mechanical. How does it bind? And 5 clutches? sorry for all the questions but what’s FFS AND SFA? Quote Link to comment https://www.bigmacktrucks.com/topic/52659-vibration-that-2-mechanics-and-mack-dealer-can%E2%80%99t-figure-out/page/14/#findComment-404639 Share on other sites More sharing options...
mrsmackpaul Posted August 22, 2018 Share Posted August 22, 2018 How does it bind, I dunno with out looking my self It sounds like tbe clutch isnt fully returning when you take your foot off the clutch Im thinking it is something between the out side of the box and the clutch pedal and maybe as simple as a build up of dirt and rust on a pivot I would completely disassemble all the linkages and make sure all are as free as can be a slide silky smooth Check all linkage adjustments and make sure nothing is traveling over center I would imagine there are very definate measurements for each adjustment No doubt someone here can help with that info FFS means for fu ks sake and SFA means sweet fu k all Very common day to day speaking in Australia Paul Quote Link to comment https://www.bigmacktrucks.com/topic/52659-vibration-that-2-mechanics-and-mack-dealer-can%E2%80%99t-figure-out/page/14/#findComment-404641 Share on other sites More sharing options...
Maxidyne Posted August 22, 2018 Share Posted August 22, 2018 Up until recently when Mack has gone to air assist clutches Macks have mostly used mechanical clutch linkages for decades with no binding problems. But when the frame is weakened by rust binding could become a problem. No point in messing with the clutch linkage until the powertrain has a solid frame to mount too, and a new frame may not be worth it on an 18 year old truck. Quote Link to comment https://www.bigmacktrucks.com/topic/52659-vibration-that-2-mechanics-and-mack-dealer-can%E2%80%99t-figure-out/page/14/#findComment-404642 Share on other sites More sharing options...
RobM626 Posted August 22, 2018 Author Share Posted August 22, 2018 13 minutes ago, mrsmackpaul said: How does it bind, I dunno with out looking my self It sounds like tbe clutch isnt fully returning when you take your foot off the clutch Im thinking it is something between the out side of the box and the clutch pedal and maybe as simple as a build up of dirt and rust on a pivot I would completely disassemble all the linkages and make sure all are as free as can be a slide silky smooth Check all linkage adjustments and make sure nothing is traveling over center I would imagine there are very definate measurements for each adjustment No doubt someone here can help with that info FFS means for fu ks sake and SFA means sweet fu k all Very common day to day speaking in Australia Paul Thank you ... will be looking into it ASAP. Quote Link to comment https://www.bigmacktrucks.com/topic/52659-vibration-that-2-mechanics-and-mack-dealer-can%E2%80%99t-figure-out/page/14/#findComment-404644 Share on other sites More sharing options...
RobM626 Posted August 22, 2018 Author Share Posted August 22, 2018 15 minutes ago, Maxidyne said: Up until recently when Mack has gone to air assist clutches Macks have mostly used mechanical clutch linkages for decades with no binding problems. But when the frame is weakened by rust binding could become a problem. No point in messing with the clutch linkage until the powertrain has a solid frame to mount too, and a new frame may not be worth it on an 18 year old truck. I hate those air assist clutches. They’re so mushy and the take off on the sucks in my opinion at least. I had an air leak on my granite and could not move the truck until I had like 90psi. I know you shouldn’t be driving until your tanks are full but when your pouring concrete and you need to constantly move the truck to pour a trench and your air bag on your drop axel is leaking and takes almost 2 weeks to get a new one, it takes forever to build 90psi. headache headaches headaches with this truck. It’s a shame all this money in it and I can’t get it running right Quote Link to comment https://www.bigmacktrucks.com/topic/52659-vibration-that-2-mechanics-and-mack-dealer-can%E2%80%99t-figure-out/page/14/#findComment-404645 Share on other sites More sharing options...
Mack Technician Posted August 22, 2018 Share Posted August 22, 2018 2 hours ago, RobM626 said: That’s exactly what it feels like. Every time I try to explain that to the guys that work on it they don’t get it... the linkage is mechanical. How does it bind? And 5 clutches? sorry for all the questions but what’s FFS AND SFA? Left me wondering about the soft custard tart? Long as the Austrailians don’t nasty it up with a vegemite-secret-center i’d be eating a few. 2 Quote Link to comment https://www.bigmacktrucks.com/topic/52659-vibration-that-2-mechanics-and-mack-dealer-can%E2%80%99t-figure-out/page/14/#findComment-404654 Share on other sites More sharing options...
RobM626 Posted August 22, 2018 Author Share Posted August 22, 2018 1 hour ago, Mack Technician said: Left me wondering about the soft custard tart? Long as the Austrailians don’t nasty it up with a vegemite-secret-center i’d be eating a few. Lol 1 Quote Link to comment https://www.bigmacktrucks.com/topic/52659-vibration-that-2-mechanics-and-mack-dealer-can%E2%80%99t-figure-out/page/14/#findComment-404656 Share on other sites More sharing options...
fjh Posted August 23, 2018 Share Posted August 23, 2018 On 8/22/2018 at 5:47 AM, RobM626 said: Thank you ... will be looking into it ASAP. On 8/22/2018 at 5:32 AM, mrsmackpaul said: How does it bind, I dunno with out looking my self It sounds like tbe clutch isnt fully returning when you take your foot off the clutch Im thinking it is something between the out side of the box and the clutch pedal and maybe as simple as a build up of dirt and rust on a pivot I would completely disassemble all the linkages and make sure all are as free as can be a slide silky smooth Check all linkage adjustments and make sure nothing is traveling over center I would imagine there are very definate measurements for each adjustment No doubt someone here can help with that info FFS means for fu ks sake and SFA means sweet fu k all Very common day to day speaking in Australia Paul You said the clutch shafts are fairly new But How old is your Clutch cable ? If its old replace it!!! At this point if it sounds like a slipping clutch it likely is a slipping clutch In my mind the only things you haven't changed here are the clutch pedal and the cable Never seen a clutch pedal siezed to the shaft anything is possible I guess ! I have seen clutch cables cause grief And we are Grasping At straws At this point! Also a thought here! Have you tried locking out the power divider? Is there a possibility that there is a striped axle gear and it is grabbing and slipping intermittently! When this post first started when were focusing on the engine cause it happened all the while the engine ran ? Now we are looking at the frame? and under power? I am Officially confused ! 😣 Quote Link to comment https://www.bigmacktrucks.com/topic/52659-vibration-that-2-mechanics-and-mack-dealer-can%E2%80%99t-figure-out/page/14/#findComment-404719 Share on other sites More sharing options...
Dirtymilkman Posted August 23, 2018 Share Posted August 23, 2018 Sounds to me like a marred up input shaft. Shaft gets marred and the clutch catches on it. That's why it's always good practice to shift using your clutch at least once. Your friction discs will jerk and rock on the input shaft. Using the clutch prevents that. Input shaft could also have a slight twist in it. Quote Link to comment https://www.bigmacktrucks.com/topic/52659-vibration-that-2-mechanics-and-mack-dealer-can%E2%80%99t-figure-out/page/14/#findComment-404721 Share on other sites More sharing options...
fjh Posted August 23, 2018 Share Posted August 23, 2018 (edited) 16 minutes ago, Dirtymilkman said: Sounds to me like a marred up input shaft. Shaft gets marred and the clutch catches on it. That's why it's always good practice to shift using your clutch at least once. Your friction discs will jerk and rock on the input shaft. Using the clutch prevents that. Input shaft could also have a slight twist in it. Yup that is a possible cause how ever you would think after AS many clutches and look sees this unit has under gone someone would have at least mentioned the shaft had some wear to it, but also knowing the lack of caring ( don't give a shit attitude) a lot of society has today ! I guess its possible it has been overlooked! Like I said I'm confused! On 8/22/2018 at 5:47 AM, RobM626 said: Thank you ... will be looking into it ASAP. Edited August 23, 2018 by fjh Quote Link to comment https://www.bigmacktrucks.com/topic/52659-vibration-that-2-mechanics-and-mack-dealer-can%E2%80%99t-figure-out/page/14/#findComment-404723 Share on other sites More sharing options...
RobM626 Posted August 24, 2018 Author Share Posted August 24, 2018 On 8/23/2018 at 11:28 AM, fjh said: You said the clutch shafts are fairly new But How old is your Clutch cable ? If its old replace it!!! At this point if it sounds like a slipping clutch it likely is a slipping clutch In my mind the only things you haven't changed here are the clutch pedal and the cable Never seen a clutch pedal siezed to the shaft anything is possible I guess ! I have seen clutch cables cause grief And we are Grasping At straws At this point! Also a thought here! Have you tried locking out the power divider? Is there a possibility that there is a striped axle gear and it is grabbing and slipping intermittently! When this post first started when were focusing on the engine cause it happened all the while the engine ran ? Now we are looking at the frame? and under power? I am Officially confused ! 😣 Clutch cable is original, was never changed. i tried locking out power divider because rears croased my mind too. When I do it I feel more power but i still have the clutch issues.unless the slipping axel gear is messing up my clutches. When the post first started. The vibration was my issue and I always felt like it was somewhere between the flywheel and the transmission. The weird thing is is that every time they pull the tranny and put it back on all of the symptoms disappear for like a week or so then come back all at the same time., which made me think it was all related. The problems even change throughout the whole day. It will change according to the load in carrying, the distribution of the load. Sometimes when I start the truck in the morning after not using it a couple days it drives better then goes back to the same thing after driving an hour or so... I’ve never felt or experienced anything like this with any other truck I’ve driven. It’s so crazy Quote Link to comment https://www.bigmacktrucks.com/topic/52659-vibration-that-2-mechanics-and-mack-dealer-can%E2%80%99t-figure-out/page/14/#findComment-404784 Share on other sites More sharing options...
RobM626 Posted August 24, 2018 Author Share Posted August 24, 2018 On 8/23/2018 at 11:45 AM, Dirtymilkman said: Sounds to me like a marred up input shaft. Shaft gets marred and the clutch catches on it. That's why it's always good practice to shift using your clutch at least once. Your friction discs will jerk and rock on the input shaft. Using the clutch prevents that. Input shaft could also have a slight twist in it. I changed an input shaft on the old transmission and it didn’t make a difference. It was t even damaged. And now this input shaft is new on a reman transmission. I had it sent back to the rebuilder and he check the whole transmission out and said it was fine. I even saw it and to my eyes it didn’t look like anything was wrong. Quote Link to comment https://www.bigmacktrucks.com/topic/52659-vibration-that-2-mechanics-and-mack-dealer-can%E2%80%99t-figure-out/page/14/#findComment-404785 Share on other sites More sharing options...
mrsmackpaul Posted August 24, 2018 Share Posted August 24, 2018 It wont be the input shaft as the clutch plates don't slide on the shaft If it is in the bell housing area it would be the carrier that carries the throw out bearing binding in the housing it slides on or the fork catching some how When and if you drop the tranny again measure all this stuff your self and dont rely on a mechanic to check this as most have no idea these days Paul 1 1 Quote Link to comment https://www.bigmacktrucks.com/topic/52659-vibration-that-2-mechanics-and-mack-dealer-can%E2%80%99t-figure-out/page/14/#findComment-404790 Share on other sites More sharing options...
mrsmackpaul Posted October 22, 2018 Share Posted October 22, 2018 So what's happened to this here jigger ? Did yah get the truck sorted yet ? Paul 1 Quote Link to comment https://www.bigmacktrucks.com/topic/52659-vibration-that-2-mechanics-and-mack-dealer-can%E2%80%99t-figure-out/page/14/#findComment-408316 Share on other sites More sharing options...
RobM626 Posted October 23, 2018 Author Share Posted October 23, 2018 On 10/22/2018 at 4:57 AM, mrsmackpaul said: So what's happened to this here jigger ? Did yah get the truck sorted yet ? Paul I went in to a shop explained that I felt like clutch was binding. He “adjusted it”. I left and it felt 10times worst... so I went back to the shop that last did the work and he took me under the truck and showed me the cable was completely destroyed. And the guy the adjusted clutch screwed it even worst. I put a new cable in . It feels a lot better but I think this clutch is shot now... I really don’t have money for another clutch job. Gonna ride it out and see what happens... u were right about the binding though... thank you for that 1 Quote Link to comment https://www.bigmacktrucks.com/topic/52659-vibration-that-2-mechanics-and-mack-dealer-can%E2%80%99t-figure-out/page/14/#findComment-408373 Share on other sites More sharing options...
mrsmackpaul Posted October 24, 2018 Share Posted October 24, 2018 That's great news that it is fixed by the sounds of it Its a shame it has taken so long and so much money was thrown at it before it was sorted, but none of this matters now as the truck is going again Paul Quote Link to comment https://www.bigmacktrucks.com/topic/52659-vibration-that-2-mechanics-and-mack-dealer-can%E2%80%99t-figure-out/page/14/#findComment-408395 Share on other sites More sharing options...
Swishy Posted October 24, 2018 Share Posted October 24, 2018 Butt iz it fixed can we close the book on this problem n can the jury B now dissmissed LOL cya Quote Link to comment https://www.bigmacktrucks.com/topic/52659-vibration-that-2-mechanics-and-mack-dealer-can%E2%80%99t-figure-out/page/14/#findComment-408396 Share on other sites More sharing options...
MACKS Posted October 24, 2018 Share Posted October 24, 2018 2 hours ago, mrsmackpaul said: That's great news that it is fixed by the sounds of it Its a shame it has taken so long and so much money was thrown at it before it was sorted, but none of this matters now as the truck is going again Paul Doesn't sound like it's fixed to me,I would love to drive this truck to see/feel what your experiencing,.. Quote Link to comment https://www.bigmacktrucks.com/topic/52659-vibration-that-2-mechanics-and-mack-dealer-can%E2%80%99t-figure-out/page/14/#findComment-408397 Share on other sites More sharing options...
RobM626 Posted October 24, 2018 Author Share Posted October 24, 2018 54 minutes ago, MACKS said: Doesn't sound like it's fixed to me,I would love to drive this truck to see/feel what your experiencing,.. Yea me too! Where r u located lol? Quote Link to comment https://www.bigmacktrucks.com/topic/52659-vibration-that-2-mechanics-and-mack-dealer-can%E2%80%99t-figure-out/page/14/#findComment-408398 Share on other sites More sharing options...
RobM626 Posted October 24, 2018 Author Share Posted October 24, 2018 55 minutes ago, Swishy said: Butt iz it fixed can we close the book on this problem n can the jury B now dissmissed LOL cya It’s not “fixed” but i gotta deal with it for now...I don’t know where else to look. Jury can take a sabbatical lol Quote Link to comment https://www.bigmacktrucks.com/topic/52659-vibration-that-2-mechanics-and-mack-dealer-can%E2%80%99t-figure-out/page/14/#findComment-408399 Share on other sites More sharing options...
RobM626 Posted October 24, 2018 Author Share Posted October 24, 2018 3 hours ago, mrsmackpaul said: That's great news that it is fixed by the sounds of it Its a shame it has taken so long and so much money was thrown at it before it was sorted, but none of this matters now as the truck is going again Paul It feels a lot better than it did with a broken clutch cable but I think I’m gonna have to do a clutch job... AGAIN...I’m bringing the truck in for a 3 axel alignment sometime in next couple weeks. I’m gonna talk to owner at shop and see if he’ll warranty the clutch for me. Worth a shot. We’ll see... he knows what I went thru with this truck. Quote Link to comment https://www.bigmacktrucks.com/topic/52659-vibration-that-2-mechanics-and-mack-dealer-can%E2%80%99t-figure-out/page/14/#findComment-408400 Share on other sites More sharing options...
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