Lukasswaziek

Paul, when I got this truck it had mismatched size tires all around, so no surprise the power divider is having issues now. As soon as I got it I put new tires all the way around. Thanks for the replies. I rebuilt the power divider with a good one out of some axles I have, will see tomorrow if it fixes my issue

The breather is intact and I cleaned it out, and when I checked the rear end yesterday it was warm but not hot.

Still stumped why the oil would come out the breather like that.. the level has never changed and it never did that until it started making noise

This truck is new to me, I checked rear end oil when I got it but never changed it, could of been overfull. And yes the outer drum is worn good, along with the inner cam. Popping was random intervals and very loud, would that be it? Thanks for the reply

81 Mack 686, front drive rear end is making a random popping noise while driving, I'm guessing it's the power divider, has the auto one, but it's also puking oil out the breather? I don't know what would make it do that. Oil looks good in it, nothing out of the ordinary. Anything else it could be? I'd rather just pull the power divider than the whole carrier but I'm tempted to pull it all just to check it out. Any advice is appreciated

I take the belts off and run it and it seems like it goes away. But alternator is new and I've never heard a water pump clunck or knock like that. Anything is possible I guess🤷

No it is not. That's pretty easy to pick out from everything else

Just bought a "new" truck, an 81 with an e6-350 and I'm starting to use it, I have been hearing an unusual knock in the front of the motor at idle, it sounds almost like two marbles hitting each other, or a hard wood block being hit, and it is inconsistent, or it makes noise at random intervals. Not a constant repeating noise. I first thought it could be a bad harmonic balancer so I replaced it, but no change. Is it possibly a fuel knock? It doesn't seem like it is because I can only hear it right in the front of the engine, possibly the geartrain. I don't want to go too long and destroy an engine, but I also don't need to tear it apart if it's minor. Help would be appreciated

Anyone know the part number for that check valve? E6 leaks down after a couple days. Can't find it online

Been driving lately and it got to the point where it was bad enough to exactly pinpoint it and it's the harmonic balancer. Very loud now. It's Parked and I'm ordering a new one tonight. Also gonna cut the filters on it to look for metal flake.

I kinda wondered if it was a knockoff due to having no markings on it. Still gonna keep it in the collection for a spare!

My girlfriend, who lives in upper Michigan found this bulldog by the shore of lake superior, and as cool as it is, I can't figure out what model or year truck it was on. Anybody have any guesses?

Mechohaulic I have someone here operating the brake while I listen, and when no brake is being applied you can hear it in the cab but it's quiet, when you push on the brake it gets louder until you pass that RPM range. When I listen next to the engine, I can hear what sounds like the same clatter but not as distinct as when sitting in the cab. Believe me this is frustrating. If I could pinpoint it easier it would not be as frustrating. I've worked on trucks my whole working career, and this one is making me really scratch my head

Yes just adjusted the valves, no difference