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Pedigreed Bulldog
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Posts posted by 85snowdog

  1. Before you buy anything or tear everything apart , take the supply line off the control valve and put some air tool oil in it . Then turn wipers on and off a lot , keep putting them in park , if truck has been sitting  for a while , might be enough to solve your problem . 

    In case you didn't know , park position is important . If your wiper control is pull out and turn to the right to increase speed , the park is... push in all the way till wipers go back to the bottom . If you turn the wiper control to the right to turn it on and increase speed , turn to the left all the way till wipers go back to the bottom . When they are in park, no air should go to the motor and therefore no air leaking out the exhaust . 

    Just my thought anyway 



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  2. When you shut the wipers off ,you put them into park position . If they are coming on sporadicly, I would lean toward the control valve .  

    Its on the right side of the pic . 

    I think ? its part # would be 7623-7547070 but not sure . Hopefully Watts can help you or a local to you Mack dealer 





  3. There is no air line off of that . Its an exhaust for the wiper motor. If it gets plugged at all the wipers won't work. Because its leaking air , It sounds like it is ok .  Your problem is somewhere else. 

    The first thing I would try is taking the air lines off the other side and put some air tool oil in them . Sometimes that's enough to get them going . Otherwise you may need a rebuild kit. I don't know much about that , but its been talked about on here . The air tool oil or penetrating oil has always worked for me . 

  4. I'm happy to hear your stocked with parts to bring your Macks back to life . 

    I had a little setback with my DM. When I got it, not a light ,gauge, speedo ,tack, or anything worked . It moved and dump box worked. I guess that's all that mattered to the previous owner . Well after fixing everything and changing all the fluids , even the coolant . I even fixed the air conditioner 😃

    I took it for a test drive and it was overheating. So I've flushed the rad and put in a new thermostat. I'm hoping that fixes it. I haven't had time to test it . So here's hoping . 



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  5. Part 2 didn't disappoint . It was very good !

    I would have been impressed if you did all that work at your house with the proper variety of tools. I'm totally amazed at what you can achieve with what you brought along. I found it very impressive .  Good job!

    And I like your choice of music . 

    Thanks , I enjoyed that 

  6. Your right about it being discussed a lot , lol.  

    For some reason though ? The search tool doesn't work for me , so it seems fair to ask because sometimes its hard to find info. 

    From my understanding .....   Your '72 should have a gold dog because of the maxidyne engine . Not sure about the dogs on the door. 


    Here is a link to a good thread on the gold dog 



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  7. 2 hours ago, Vladislav said:

    Thanks. I do belive 14 inch would work fine for 445's. But have worries on good fit of 385 on them. If you have a minute check out the blue truck. No rush with that.

    I got the size wrong Vlad. After checking , I was able to get you some good info that may help you . 

    The RD with 385's has a part # on it of 31674.   Thats a 22.5 X 12.25 rim with 3 inch offset .  



    The DM with 445's has a part # on of 13228.  Thats a 22.5 X 13 with 3.94 offset.

    That number is no good any more . But by dimension I was able to get a new number. 

    The new # is 32201TK .  


    The rim part numbers are Accuride  numbers . And the way I understand it . The offset is from the centre of the rim , not the outside edge.

    But I could be wrong , lol . Ive been wrong before . 

    Hope it helps. 

  8. 13 hours ago, Vladislav said:

    The 5.55 is a figure I also came along. Those are installed in the DMM I accuired a few years back. Unfortunately I haven't been able to do much with the truck. The cab was removed for transportation (not by me) ans some damage to air lines and other small stuff was done. Also the bab itself needs some fix and paint so it seems as a shame to put it back on the chassis in a shape it currently is in. The truck is equipped with EM6-285 and T2060 which has the same hi range ratios as T2070 or T2080. BTW DMM has 445/65 at the front and I could found wide Budd wheels to fit the same type of tyres to the rears. So gonna be a hot looking unit when it's done.

    A question - do you have an idea on the width of the front rims both of your RD and DM have? I'm curious on what size would work for 385/65? It's very common tyre size in Euroope for the most trailers which have 3 axles at the rear and ride on 6 such wheels. Also many tractors have them at the steer axle. But they all mounts on "Budd" style wheels. I type it this way since European wheels have different bolt pattern, actually larger stud circle so those wheels don't seem correctly called Budds. Ok, no matter, those wheels are 11.75 wide and I belive American wheels of that width don't exist.

    I think they are 14 inch rims Vlad. But let me double check and get back to you. I will figure out the offset on them to. 


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