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Old Feb 8, 2012 | 01:58 PM
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HPOP disassembly question
Anyone ever completely disassembled an HPOP before? Have any pictures? I'm fiddling with a spare pump I picked up for cheap and was wanting to tear it down to see the guts.

Thanks
 
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Old Feb 8, 2012 | 02:43 PM
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Originally Posted by akaFrankCastle
Anyone ever completely disassembled an HPOP before? Have any pictures? I'm fiddling with a spare pump I picked up for cheap and was wanting to tear it down to see the guts.

Thanks
The HPOP is a seven piston axial pump. Axial Pump Info Link

I've never taken one apart but here is a pic of "the guts". One thing I do know is that to take it apart the first thing you need to do is remove the rear plate. Take pics.
 
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Old Feb 8, 2012 | 04:46 PM
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That rear plate does seem like loads of fun to figure out. With it being recessed, Mongo (me) will have to figger something out.
 
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Old Feb 8, 2012 | 05:22 PM
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leekingen
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try a shot of comprist air thet worked form me ,oil suction hold the back plate on real good i also am interestid in this
 
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Old Feb 9, 2012 | 05:37 PM
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yea id like to know to. post some pics if you can. mine went bad, wont pump nothing. i thought what ever holds the swash plate in place may have broke causing 0 pumping.
 
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Old Feb 10, 2012 | 10:20 AM
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You can use a large C-clamp, front to rear, to slightly depress the rear plate to relieve the tension on the snap ring.
Of course this will also add in getting the snap ring back in.
 
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Old Feb 10, 2012 | 11:58 AM
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Originally Posted by PaysonPSD
The HPOP is a seven piston axial pump. Axial Pump Info Link

I've never taken one apart but here is a pic of "the guts". One thing I do know is that to take it apart the first thing you need to do is remove the rear plate. Take pics.
I'm just curious what pump is in the pic? It's black like another pump I'm familiar with.
 
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Old Feb 10, 2012 | 12:37 PM
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Originally Posted by bulla
I'm just curious what pump is in the pic? It's black like another pump I'm familiar with.
That pic was from a Ken Lux site years ago and is a stock pump. It only looks black in this pic, but wasn't. It was long before the SRP1 if that is what you were thinking.
 
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