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Chain Angle

Discussion in 'Jeeps' started by magik235, Jan 3, 2009.

  1. magik235

    magik235 Senior Member
    Messages: 113

    I received the following suggestion in reference to my Jeep pictured below. Please comment on the suggestion. Thank you.

    Can i make a suggestion on the angle of your chain to your pump, if you reduce it to almost 90 degrees and mount it closer to the center of the plow A frame, you would increase your life of your pump and battaries by 50%.


    1971 CJ5 with a 225CID odd-fire V6, HEI ignition, Heddman headers, 390 Holley 4 barrell, FlowKooler high capacity waterpump, 100 amp Proform alternator, Optima battery, T14 3 speed transmission, Dana 18 transfer case, Dana 44 rear axle and a Dana 27 in front. More pictures can be seen at http://www.cardomain.com/ride/2608975/1
  2. tom_mccauley

    tom_mccauley Senior Member
    Messages: 465

    I don't know about 50%, but moving the lift point back will make life a whole lot easier on your pump!:drinkup:
  3. 04sd

    04sd Senior Member
    from pa
    Messages: 266

    Did you build the plow mount? I'd guess Western intended for the chain to be straight down. That angle adds extra stress to the pump for sure.
  4. magik235

    magik235 Senior Member
    Messages: 113

    The plow mount is a Western.
  5. cretebaby

    cretebaby PlowSite Veteran
    Messages: 4,162

    The closer to the truck you mount the chain the heavier the plow will be on the chain

    I would leave it where it is
  6. theplowmeister

    theplowmeister 2000 Club Member
    from MA
    Messages: 2,511

    You got that right :)
    having the chain out so far reduces the load on the pump BUT slows down the speed of the lift and reduces the lift hight.
  7. 2COR517

    2COR517 PlowSite Fanatic
    Messages: 7,115

    I agree that having the chain closer to the blade reduces load on the pump, and makes it slower to lift the blade. However, that angle would increase the forward strain on the headgear. I think you could move the lift point closer to the truck, at least a few inches.
  8. willyswagon

    willyswagon Senior Member
    Messages: 110

    I have a 50 yr old Western plow on my 56 Willys. When people ask about chain angles, push plates, trip edge vs trip blade... My answer is simple - If it works why change it???

    If your happy with the way it pushes, and the the way it lifts I'd leave it.
    Just my .02
  9. unit28

    unit28 PlowSite Fanatic
    Messages: 6,477

    depends what you plow

    If it doesn't see much action lifting or stacking, why move it?

    I'm not good with geometry or hydrolic equations but if you move it back closer, the weight will be more to lift. Wouldn't that be even harder on the pump?
    I would make variable points and go to the opposite extreme and then work back to the original and see what works for your style pump.

    My guess is it's in a good anchor point already.
  10. '76cj5

    '76cj5 Member
    Messages: 78

    I think some part of that setup was designed to have the lift closer to the blade. I wonder if that is the right "A" frame for a Jeep. I had one for a pickup truck and it was long and my chain angle was a lot like yours.

    I have a Western Plow like yours and the "A" frame was cut down to fit the jeep better. I'm currently using a Meyers though.