Mack B Mike

The last time i checked prior to today was ~ 5 months ago added a little bit at that time but nothing major, there were no puddles in the garage and just got it on the road the beginning of this month and probably put only 300 miles on it oil level in the rear seemed good just with horrible burnt smell

Hello All Took the B out for a ride today drove for about an hour varying speed between 30 and 60 mph without any issues until i got back to my house. I stopped at my driveway and started to back in and bout 10 foot in my rear axle locked stalled engine started truck again tried to continue backing up no luck would not move tried going forward again couldnt go forward either hit the GO pedal harder frame started flexing but truck wouldnt move, checked service and parking brake to make sure nothing was binding all is good there, touched the carrier and it was extremely hot!! sizzled water, also could smell burnt gear oil. Pulled drive shaft , ran engine and trans in all gears no problem there, could move truck bout 2 inches with drive shaft off but no pinion movement, any ideas of what could have happened would be helpful dont have much experience with the Mack Rears Thanks, Mike

Hello All.. Im installing an Air starter on my 58B61LT and im having problems finding a Air tank to use with it. I have the lines, valve and starter off of a B67 but no tank. Im also not sure what size of a tank i need i am assuming it needs to be rather large to provide enough air volume to crank the engine over if any one knows where to get one from or the size it needs to be etc. help would be appreciated i did check the truck shops in my area but nothing was avaliable thanks Mike

i pulled out the flat panel and noticed things that looked like two post relays i am assuming that those are the breakers, the breakers that i have seen in the B models had red reset buttons visible when you open the glove box, i guess that there were several types used i just cant find the ones that i have in my manuals, still alot to learn bout these trucks Thanks Superdog Mike

Hello All, I have recently picked up another B model tractor (this one is drivable) its a 58 B61LT, one thing i noticed is that there is NO fuse panel or breaker panel in the glove box, there is just a flat piece of steel where it would be with wiring mounted to the back of it but no fuses visible, all of the books i have show a fuse panel at the normal location, is this normal did some trucks have them and some not? the guy i bought this from has about 10 B models running condition all with the exception of two do not have fuse panels Mike

Thanks everyone for all the ideas for possible causes, greatly appreciated, once the weather breaks a little ill start working on it again

Hello All, I have a couple issues with my 56 B61 that im looking for some help with, I finally got my B Model running after it was sitting for ~15 years resolved the issues with the S/P switch, stuck rack and few other issues. When i run the engine for any time greater than 5 to 10 mins the is some black fluid that starts comming out of the exhaust also the liquid is comming out of a leaky ex manifold gasket at the #6 cylinder, im an not sure what is causing this but the liquid is flamable that is leaking, i am assuming that this is un burnt diesel but i am not sure what to do about this, the engine runs extremely well at idle and goverened speed, also starts very easily when warm, but needs a shot of ether when cold every time. to me it does not seem that a cylinder is not firing properly, along with the fuel leaking there is alot of blue smoke which does subside somewhat after engine has been running for ~20 minutes but still is present. ill take any ideas of a possible cause thanks Mike.

called the Mack Museum today, found that the truck mfg date was Dec 27th 1956

Hello My name is Mike i am 26 yrs old and from PA, I just became a member of this forum today, i want to say hello to everyone. Recently i bought a Mack B61T with a concave cab and will be restoring it, im not sure of the year didnt get the title yet, but the serial number is 10804 im guessing mid to late 50's, thermodyne diesel and the 10spd duplex trans. ill try to get some pics up soon