You have to be REAL careful when pressing a waterpump apart, or back together, or you'll break the impeller, the main casting, or the pully/hub.
You need to figure out which way it has to come apart, or you'll break things.
NEVER put pressure (from pressing) though the bearing. Press on the bearing shell to press the bearing in place, then support the opposite end of the SHAFT while pressing the impeller or the pulley/hub onto the other end.
Best to have a shop manual "at hand", before starting.
Usually, the manual will give you the dimensions as to how far to press the pulley/ or and the impeller into place.
If you DO NOT have a manual, or it doesn't show the process in enough detail, you need to CAREFULLY measure these things BEFORE pressing things apart.
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Today's Featured Article - Tractor Traction - by Chris Pratt. Our first bout with traction problems came when cultivatin with our Massey-Harris Pony. Up till then, this tractor had been running a corn grinder and pulling a trailer. It had new unfilled rear tires and no wheel weights. The garden was already sprouting when we hooked up the mid-mount shovel cultivators to the Pony. The seed bed was soft enough that the rear end would spin and slowly work its way to the downhill side of the gardens slight incline. From this, we learned our lesson sinc
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