I've used mine for determining size of bearings and seals in both inches and metric then go on-line and find what is needed and not have to waste time and leg work going to a vendor, etc. Seems most bearings and seals are listed in metric sizes now days.
Less than 5% of the world's population currently lives in a country that does not use the metric system as its official system of measurement. Liberia, Myanmar, and the USA are the only countries that officially use the English system of measurement.
It may not be evident in the pics because of the flash glare, but the seal face is ground away. I can mic the proper bore and shaft diameters, but my issue is to where the seal material is on the casting. There's not much there to grab, where/what ever it is.
Make a wedge out of a piece of welding rod to drive across the hole between the back side of the seal and the housing. Wedge it up in 3 or 4 places, then push a flat tipped screwdriver into the slot created. Tap the screwdriver from the back side of the face plate with a bolt and reposition the screwdriver several times in the process so as not to distort that seal case. When it is flush with the case, pry it out with the screwdriver from the face side, or better yet, pop it out from the back side using the screwdriver as a drift to catch the edge.
The face of the seal that you see is almost all rubber and too deep in the hole for wear to the face to to occur. The numbers, if present, will be stamped into the back side or circumference of the seal where it is up against the housing.
I have seen on leaking hyd. pumps that the shaft or bearing/bushing is worn causing the seal to leak, check your shaft. My two cents
You're right. The bearing is toast as indicated by the egg shaped wear of the seal. With the amount of shaft displacement indicated, there will be other parts of the pump that need refurbishment. Clearances are tight in a pump to ensure that there is only a small amount of fluid leakage from the pressure side. That much angular displacement of the shaft will cause the pump gear to rub the pump housing causing wear and increased clearances. Look for wear marks on the end plates. There are none, or only a burnished surface showing the full diameter of the gear, on a good pump.
Sleeve bearings have a (relatively) short life span when a component is driven by belts. The elongated wear in the seal points directly at the shaft that is driving the pump pulley.
Pumps with rolling element bearings in the front end have a much longer service life, but they come with a price tag to match.
This is why, when buying a sleeve bearing pump, you should look for a pump with a large diameter shaft to spread the load over a larger area. The original pumps for the GT loaders had a 7/16" diameter input shaft. Utility pumps with the same, or similar, displacement are available at reasonable cost with 5/8" diameter input shafts.
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Sometimes you get on a roll, sometimes the roll gets on you.
MF GC2310, Husqvarna YTH20B42T
Down for Repairs
MF1655 w/ FEL, MF1655, MF12H, MF8H, MF7H
Spending too much time on MTF to work on my toys.