water pump resistence in turning

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mikefealk
Around the block
Posts: 96
Joined: Sun Nov 09, 2014 5:50 pm
Country: usa
Suzuki 2-Strokes: 1974 gt 750 , 1965 80 cc

water pump resistence in turning

Post by mikefealk »

One more question. Just installed a NOS water pump. it feels like there is quite a bit of resistence when spinning it with my fingers. is this normal. pressure from the spring seal inside it im assuming.
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tz375
Moto GP
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Joined: Mon Nov 03, 2008 10:47 am
Location: Illinois

Re: water pump resistence in turning

Post by tz375 »

There should be a slight drag from the top oil seal,. That seal may be dry. Try a few drops of oil on it.
mikefealk
Around the block
Posts: 96
Joined: Sun Nov 09, 2014 5:50 pm
Country: usa
Suzuki 2-Strokes: 1974 gt 750 , 1965 80 cc

Re: water pump resistence in turning

Post by mikefealk »

thanks for the reply. i dont know if id call it a "slight drag" it seems a little more than that. maybe its just cause its brand new...and a bit tighter on the seals. the impeller is not rubbing and i did oil the bearing and seals. i guess its just the way it is. thanks.
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