Rear main seal... wear sleeve or not?
#1
Rear main seal... wear sleeve or not?
Hey guys, I am tearing down my junkyard engine to prep it to put into my truck and I came across this on the rear main seal... is this a wear ring?
It kinda looks like a oil slinger. My new seal is on the way so I have nothing to compare it to.
I don't want to be yanking on it if it's supposed to stay.
richard
It kinda looks like a oil slinger. My new seal is on the way so I have nothing to compare it to.
I don't want to be yanking on it if it's supposed to stay.
richard
#2
#5
What Richard is showing is a wear ring. Wear rings were invented to provide a new surface for damaged journals wearing from seal contact. They typically are never installed at the assembly of a new component. You can usually buy seals with and without a wear ring.
The part in DTR vid was the rear crank adapter, which is not only the seal contact surface, but is also part of the balancing of the crank, so it's indexing is very important. The adapter is a tight fit to the actual end of the crank. I'm not sure if anyone has ever checked runout of the surface after removing one of those. In another thread I believe Pete helped someone find the alignment after they removed that part.
So Richard's motor at one time probably had a rear sear repair and the person installed a seal with a wear ring. It would be only after removing the ring would you find if the surface had worn, or it was a preventative measure to insure against a comeback.
There are applications were a wear ring is included from the very start, and in the case of our trucks it's the rear axle hub seals, a change in design of years past were after you had a damaged axle surface you incorporated a wear ring.
The part in DTR vid was the rear crank adapter, which is not only the seal contact surface, but is also part of the balancing of the crank, so it's indexing is very important. The adapter is a tight fit to the actual end of the crank. I'm not sure if anyone has ever checked runout of the surface after removing one of those. In another thread I believe Pete helped someone find the alignment after they removed that part.
So Richard's motor at one time probably had a rear sear repair and the person installed a seal with a wear ring. It would be only after removing the ring would you find if the surface had worn, or it was a preventative measure to insure against a comeback.
There are applications were a wear ring is included from the very start, and in the case of our trucks it's the rear axle hub seals, a change in design of years past were after you had a damaged axle surface you incorporated a wear ring.
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