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Thread: Harrop 2300 supercharger to Optimiser 6500

  1. #141
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    Quote Originally Posted by nissannewby View Post
    Yeah there is just to much flow returning to that little reservoir but it is only a thought. I know BD are fantastic are supplying secondhand crap
    Yep, finding this out, along with very limited substantiated engineering. I am looking at replacement clutch as mine is undernourished for sure, but think I will get it dyno'd first to get a real understanding of what i need capacity wise because BD have expanded the capacity by 50% on the same clutch over the last 3 days - must be due to the sunshine over in WA!

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  3. #142
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    OK, just received the new PS pump. Could I ask a favour please of any GQ Patrol owner, to take a photo of the hose connections at/to the PS pump and also the reservoir. I am looking to confirm the pressure and return lines orientation. I am pretty sure I have it correct, however would like to confirm it before starting the mission of replacement next Friday. The pressure line from the pump should have crimped fittings I think and the return lines simply hose clamped.Thanks in advance.

    Here are a couple of shots I got off the internet. steering box.jpg

    steering box 2.jpg

    The pressure line I believe is the one shown with the crimped hose still connected to it - If this could be confirmed it would put my mind at rest. This is the hose I connected to the pressure port on the pump.
    Last edited by PeeBee; 5th September 2019 at 02:27 PM.

  4. #143
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    Sorry it took so long. The high pressure side is is circled in both pics. On the steering gear it is the one towards the front. On the pump it is towards the passenger side.
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    Last edited by mudnut; 7th September 2019 at 10:20 AM.

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    Thanks Craig, appreciate it. I assume front of vehicle is bottom of image?

  6. #145
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    Edited above post.

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    Quote Originally Posted by mudnut View Post
    Edited above post.
    Gotcha, this aligns with the image i posted earlier,now I am doubting if I have plumbed this up correct or not - simply cannot recall the detail - so will have to stew on this until next friday, but then I can't see how the ps would have worked in the first place and why it didn't fail immediately if it was hooked up backwards?

  8. #147
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    The bottom hose from the reservoir goes to the low pressure side of the pump.
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    Dunno, Phil. The blue hose is the suction inlet. I suppose if it was plumbed wrongly, it might have been pumping high pressure fluid into that.

    If you were turning the steering wheel while the vehicle was on a jack, then not much pressure was applied. On the road, with higher pressure and load it would have caused a higher pressure to be generated at the seal. All conjecture at this point, though.
    Last edited by mudnut; 7th September 2019 at 10:17 AM.

  10. #149
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    So, when you look at the lines that run across the front of the car from drivers side to passenger the return to the drivers side, are they on the low or high pressure side of the system?

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    OK here is what I have and believe it is correctly configured.PS Schematic.pdf

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