HPOP
Fleet Owner
Joined: Aug 2004
Posts: 20,419
Likes: 197
From: AZ
All I know is the angle of pump inside produces more oil pressure. The 15* pump came stock on the OBS and the 17* came stock on the SD. Looks like you have a SD. I was running out of oil and missing as my mods started adding up so I got a 17* and that handled the added demand for oil. Now I have the adrenaline.
Hotshot
Joined: Oct 2003
Posts: 17,799
Likes: 103
From: Ashland City, TN
The thing is, thats all the difference.
2* in the swash plate.
adrenalin is just a used pump with a 19* swash plate.
Whoopie doo. =)
2* in the swash plate.
adrenalin is just a used pump with a 19* swash plate.
Whoopie doo. =)
Hotshot
Joined: Oct 2003
Posts: 17,799
Likes: 103
From: Ashland City, TN
Yeah, the ramp strokes the pistons.
So the degree of it is how much its stroking the pistons.
Well, thats how I understand it anyways. I'd like to tear one apart so I understand it better. =(
So the degree of it is how much its stroking the pistons.
Well, thats how I understand it anyways. I'd like to tear one apart so I understand it better. =(
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Post Fiend
Joined: Apr 2004
Posts: 12,835
Likes: 3
From: Silver Lake Dunes, MI
Its not very easy to get apart and you have to destroy the front seal to disassemble it. I started to pull one apart and bailed out cause I wasn't sure if I wanted to use it later.
Posting Guru
Joined: Jan 2006
Posts: 1,605
Likes: 1
From: Elkhorn, WI
They're pretty interesting on the inside. We took my buddys apart when we did the stealth dual hpop kit. He wanted two remanufactured pumps. Looking back I wish we hadn't because I had aa super duty at the time. I wish he still had it laying around now lol
Posting Guru
Joined: Jan 2006
Posts: 1,605
Likes: 1
From: Elkhorn, WI
I really don't see a way for them to completely fail.im sure if the plungers wear out or something I bet they might not be able to put out as high of pressures but there pretty simple. Just dime sized plungers arranged in the perimeter of a circle riding against an angled plate that fill with oil and as they rotaate agaiinst the fixed angle plate they get compressed
Posting Guru
Joined: Dec 2008
Posts: 2,347
Likes: 1
From: Maysville, Kentucky
That's similar to how a hydro gear mower pump works. What happens when the fail is the thrust bearing they ride on fails causing the tolerances to be to large and the pressure bleeds by.
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