Duramax Diesels Forum Truck of the Week
  #1156  
Old 01-18-2020, 10:29 PM
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Getting closer by the hour..

Mock up says get a half inch shorter, [64"] belt and then it's time to test some pumps..


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  #1157  
Old 01-18-2020, 10:32 PM
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Looking good! Hopefully the pump cooperates with your feed setup.
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  #1158  
Old 01-19-2020, 11:07 AM
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I hope so.. Issue is you have two pumps and one steering system. Old setup was based on two old Saginaw 1 pumps which are same as factory Dmax. Then they had a crossover tube connecting both reservoirs. I'd like to keep that space between engines open so you can walk thru there...

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  #1159  
Old 01-19-2020, 01:07 PM
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Should be fine. Each pump has its own relief right?
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  #1160  
Old 01-19-2020, 01:12 PM
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Exactly. The design is in case you lose one engine you still have power steering on the other. So each pump in normal operation, should have half of the flow and load that it would normally see in an automotive environment.

The system in the boat is based off 1/2 inch line, with two 3/8 line going to each pump. So through the cooler I upgraded that to1/2, then into Reservoir that feeds everything through 5/8 inch line, - 10 to pumps

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Last edited by kidturbo; 01-19-2020 at 01:19 PM.
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  #1161  
Old 01-19-2020, 01:31 PM
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Is there a tube to balance the reservoirs at all? Is that handled through the return system? I'd imagine you don't want one reservoir slowly overfilling while the other depletes.
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  #1162  
Old 01-19-2020, 01:49 PM
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In old setup with attached resivour type 1 pumps had 4AN crossover tube with 3rd resivour, and 3/8 returns to each main resivour. See below.

New setup, single remote reservoir tank with tee in the 5/8 line feeding each pump directly. Also pumps are inverted, feeding from bottom to remove any chance of air lock issue.



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