Posted by Zachary Hoyt on August 28, 2013 at 10:18:41 from (50.122.163.197):
I bought an aftermarket water pump for our Massey 35 with Continental Z134 engine. It is just the impeller and fan shaft and a flat plate that bolts to the water pump housing that is still on the tractor. The pump spins freely when I put the flange in a vise, or when I hold it in my hand. When I bolt the pump on the tractor it turns, but I can hear and feel something dragging for about 1/4 of every revolution. I thought the impeller must be dragging somewhere on the housing so I filed down the surface all of the way around the edge and the face of the impeller until the machining marks were gone and it is still just the same. The other issue is that the fan shaft is running as much as .1" out of true, and I am wondering how much of a problem that will be. I do have a service manual and owners manual for the tractor but they do not seem to address the problem. I am wondering what could be causing the pump to drag internally, and I can't seem to think of anything that makes sense. Any advice will be muuch appreciated. Zach
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Today's Featured Article - A Lifetime of David Brown Tractors - by Samuel Kennedy. I was born in 1950 and reared on my family�s 100 acre farm. It was a fairly typical Northern Ireland farm where the main enterprise was dairying but some pigs, poultry and sheep were also kept. Potatoes were grown for sale and oats were grown to be used for cattle and horse feeding. Up to about 1958 the dairy cows were fed hay with some turnips and after that grass silage was the main winter feed. That same year was the last in which flax was grown on the farm. Flax provided the fibre which w
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