Leaking Rear Hub on DP
My hub started leaking recently. This will be my first experience with this. First, I am assuming that this is likely just a leaking cover plate, and not a symptom of something serious. I s...
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I repaired buses for a church. Those axles were not as HD as the rear of your DP. The Brits don't call the rear "The Big End" for nothing
Those buses had the "full floating" rear axles (meaning the Axle Shaft is Drive Only, Rear Axle Weight completely isolated to Bearings) and the studs holding the flanges passed through tapered wedges like this
You can get the nuts and any washer off easily, but the axle itself may not give up easily at all without a puller and/or trick or two. You might/should be able to see the split of the wedge, called KEEPER, with a nut off. It'll look like an ordinary split lock washer stuck down in there.
Oh, a DP is the equivalent of a "Spec Truck" where the make/model of that axle is more significant than of the coach. Still, your coach builder or truck shop should be able to determine what you actually have under that Big End.
Rear Drum or Disc Brakes? The buses never leaked at the Flange! It was Inner Seals, and the interior of the hub (that you can't see when installed) had a groove to sling lost lube into a few holes back out to the outside. Purpose was to keep oil off the brake linings as long as possible.
I forget where the oil relief holes came out. The buses were rear drum. Pulling just that shiny simulator might get you closer to the source.
Those buses had the "full floating" rear axles (meaning the Axle Shaft is Drive Only, Rear Axle Weight completely isolated to Bearings) and the studs holding the flanges passed through tapered wedges like this
You can get the nuts and any washer off easily, but the axle itself may not give up easily at all without a puller and/or trick or two. You might/should be able to see the split of the wedge, called KEEPER, with a nut off. It'll look like an ordinary split lock washer stuck down in there.
Oh, a DP is the equivalent of a "Spec Truck" where the make/model of that axle is more significant than of the coach. Still, your coach builder or truck shop should be able to determine what you actually have under that Big End.
Rear Drum or Disc Brakes? The buses never leaked at the Flange! It was Inner Seals, and the interior of the hub (that you can't see when installed) had a groove to sling lost lube into a few holes back out to the outside. Purpose was to keep oil off the brake linings as long as possible.
I forget where the oil relief holes came out. The buses were rear drum. Pulling just that shiny simulator might get you closer to the source.
