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Thread: 348/409 reverse flow water pump help
          
   
   

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  1. #15
    53 Chevy5's Avatar
    53 Chevy5 is offline CHR Member Visit my Photo Gallery
    Join Date
    Jan 2005
    Location
    Doon, Ia
    Car Year, Make, Model: 53 Chevy 3100
    Posts
    2,714

    First i'd like to apologize to tech inspector for ripping you earlier, between thing breaking at work, teenagers, lack of sleep, and then this, i was pretty much pissed at that point.
    This is what i found, show cars convinced me i needed their reverse impeller and it would work fine so that is what i put in the water pump. Well tonite i took it off an filled it with water and spun it and it didnt pump water in either direction. I took the impeller out and looked at it closer and the fins need to be 3/4 inch longer to match the original. I put the original one back in and it pumps more backwards than the other one did in either direction.I'll run it tomorrow and see if it will work ok, if not, i'll figure something out. As far as why I am using a serpentine set up, this project is on its 12th yr of slowly getting this pickup together. When i was younger, with less kids and more energy I thought this thing had to be different from anything else out there so the belt setup on a 348 with the TBI seemed like a great idea. Now I wish I went with v belts or better yet, should have put the ls1 i had in it. It is different and cool, but I'm getting sick of it and just want to drive it.
    Last edited by 53 Chevy5; 07-02-2015 at 08:52 PM.

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