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Jet Pumps / Is turning the shaft by hand supposed to be difficult?
« on: May 25, 2021, 09:33:55 PM »
quick question. since im learning new things about the Berk/AT pump I just bought.
the pump has been completely reconditioned. But the stamp shows this was done in 12/2002, by hi-tech performance.
the inside of the tunnel and all parts look nearly new, there is not a scratch inside the tunnel.
so Im guessing(hoping) it has not been used since the rebuild.
When I tired to turn the pump by hand, I could barely get it to turn. After doing it for a couple minutes it started to free up
and I could turn it with both hands using one inside the cleanout port and the other on the spline.
In fact I have blisters on my hand from turning the shaft.
it appears to feel like resistance against the side of the wear ring, based on feel at a certain points.
there is no grinding noise.(but it is lubricated).just a slight sliding or swishing sound.
After talking to Alex at intermountain marine here in Canada, he told me that the new packing glands would make it difficult to turn.
and I know they must be water lubricated and have a slight "drip" about once every minute.
I am assuming new packing gland. The Impeller is greased heavily at the wear ring.
Zero end shaft play (horizontally or vertically). seems the impeller feels tight to
the wear ring?
it has a bronze impeller.
IS this normal for a reconditioned pump to be that tight? or any pump?
the pump has been completely reconditioned. But the stamp shows this was done in 12/2002, by hi-tech performance.
the inside of the tunnel and all parts look nearly new, there is not a scratch inside the tunnel.
so Im guessing(hoping) it has not been used since the rebuild.
When I tired to turn the pump by hand, I could barely get it to turn. After doing it for a couple minutes it started to free up
and I could turn it with both hands using one inside the cleanout port and the other on the spline.
In fact I have blisters on my hand from turning the shaft.
it appears to feel like resistance against the side of the wear ring, based on feel at a certain points.
there is no grinding noise.(but it is lubricated).just a slight sliding or swishing sound.
After talking to Alex at intermountain marine here in Canada, he told me that the new packing glands would make it difficult to turn.
and I know they must be water lubricated and have a slight "drip" about once every minute.
I am assuming new packing gland. The Impeller is greased heavily at the wear ring.
Zero end shaft play (horizontally or vertically). seems the impeller feels tight to
the wear ring?
it has a bronze impeller.
IS this normal for a reconditioned pump to be that tight? or any pump?
