seanross

I have those marks on my vibration damper. but nothing like that on the flywheel.

hi guys. need some help setting the valves on my mack. the engine has ENDT 676 stamped on it. its a 2vh with dynatard, I have the valve set procedure in front of me. it says in the book I have, to set each cylinder 30 degrees passed tdc. it also states that there is a pointer located on the block marked "valve" that lines up to marks on the damper. There is no pointer on the front of my engine. so i went to the scrap yard to find one. but there were no pointers on those engines either. there is however, a pointer on the very bottom of the flywheel housing. but I cant make sense of the markings on flywheel. all i can see on flywheel is a series of holes. do these mean something? or just for balancing purpose? any help would be appreciated. thanks!

hi, I have a tandem mack truck with 6 spoke 10" Dayton hubs and 22.5s. we had a wheel bearing go and it ruined the diff housing. we replaced the lead differential with one out of a another mack from the wreckers. the truck is about a 1981. this truck has mack stamped toploader diffs. anyways. the diff we used for replacement had 5 spoke 11" hubs for 24.5s. I tried using my 10" hubs from my original mack diff and this is not possible due to the spindle of the replacement diff being different diameter. I talked to the multiple bearing suppliers and they cant supply bearing for this conversion. anyone dealt with this before? I cant remember the pound rating, but these diffs look identical. just spindle diameter is different. one uses 10" hubs and the other 11". also different axles. only difference being on the hub end. what I am looking for is 10" hubs to fit the heavier differential.