What rpm do sea water pumps need to be spun?
MERCRUISER SEA WATER PUMP 46-807151A9 BILLET ALUMINUM HSG AND SERPENTINE PULLEY | eBay
That style Merc pump? Thinking of driving with 4 rib AC pulley, I can math the pulley sizes and engine rpm to figure out what it would be spinning but dont know what "normal" is |
i think they run pretty close to 1 to 1 ratio.
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1 to 1
Just saying that's a GLM parts and in the marine world dealing with many parts daily -- many in the industry call GLM = GOOD LUCK MARINE pure CHINA made parts. |
Seems that all raw pumps take about the same size pulley, which is smaller than the crank pulley that drives them. Which means they are spun a lil faster than crank rpm. Then there is the direct drive type which, obviously runs at crank rpm. Some alpha vert shafts run a little slower than crankshaft rpm and they are the smallest pumps with least vanes that feed v8 engines. So a pulley the size of the crank pulley would be the upper limit in diameter. I wouldn't go much smaller than what the oem people use. Might spin it too fast.
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Originally Posted by BUP
(Post 4578549)
1 to 1
Just saying that's a GLM parts and in the marine world dealing with many parts daily -- many in the industry call GLM = GOOD LUCK MARINE pure CHINA made parts. |
Unable to say anything about the quality but there offering a similar item as Merc (aluminum) or Hardin Marine (stainless). Its not like its hard to make one with a CNC machine. Everything else is simple seals.
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Originally Posted by AllDodge
(Post 4578604)
Unable to say anything about the quality but there offering a similar item as Merc (aluminum) or Hardin Marine (stainless). Its not like its hard to make one with a CNC machine. Everything else is simple seals.
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Or are you meaning this? MerCruiser Sea Water Pump/Pulley Serpentine Belt, Replaces 46-807151A9 - EMP | eBay
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Originally Posted by GrannySShifting
(Post 4578636)
Or are you meaning this? MerCruiser Sea Water Pump/Pulley Serpentine Belt, Replaces 46-807151A9 - EMP eBay
Genuine Mercury & Mercruiser parts. Sea Water Pump |
That doesnt have the bolt on pulley
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