Harrop 2300 supercharger to Optimiser 6500

[PeeBee]

Hi-Lo pressure lines.jpg

Hi and low pressure lines

[mudnut]

That seems to be right. Is your pump and res all in one unit?

[PeeBee]

That seems to be right. Is your pump and res all in one unit?

Yes, its a chev style, pump is inside the reservoir. When I get home at the end of next week, I have to pull the old/new one out and swap over the rear casing and then re-install it. I am hoping to discover the reason for the failure then, but in the meantime doing the research to make sure its hooked up correctly, which I am sure it is now. I am going to get the actual pressure hose modified by Pirtek as they made me one without a swivel in it and I may have constricted the bore when I installed it. Still baffled how this would pressurise the take and blow the seal, or maybe the seal was simply faulty or poorly fitted. I must have been idling for a few hours whilst I was trying to burp the radiator, and it certainly wasn't leaking then. Anyway, thanks for the help today, will advise what I find later.

[nissannewby]

The high pressure line will always be the smaller one. Everything after the steering box should be larger returning to the reservoir with basically no restriction. A cooler helps in that with a temp drop you will get a pressure drop. So larger return line and cooler have a lower pressure returning to the reservoir.

You also need to make sure the return to the reservoir is under the fluid level.

[PeeBee]

The high pressure line will always be the smaller one. Everything after the steering box should be larger returning to the reservoir with basically no restriction. A cooler helps in that with a temp drop you will get a pressure drop. So larger return line and cooler have a lower pressure returning to the reservoir.

You also need to make sure the return to the reservoir is under the fluid level.

All good thanks and understood. I guess my focus was on identification of the pressure and return ports on the steering box. All else should be fine. i am pretty sure its connected correctly, just a very short period of time at home so want to maximise every minute if I can. Looks like the pressure port is now identified so on to the swap over and hose mod friday arvo.

[PeeBee]

So a mixed day. BD finally agreed to replace the PS pump that last 3klm before shitting itself. Once I got it out of the car and apart, found the front bearing was knackered and the pump full of metal splinters - next it will be the PS box. Anyway, after 3 call Greg decided to replace the mount bracket assy as I am still throwing belts. I am well past 'over it' with these guys to be frank.

I finished the airbox assy, loots great but can't install it as need the access for the PS assy installation. Frustrating. So moved on and prepped the bonnet for the scoop, had to make 2 stiffener frames for the bonnet as I have cut through a number of braces. Drilling and mounting the scoop tomorrow, then with luck, back onto the car and it might even fit! One day, its going to get back on the road, one day ending in 'y' that is.

[mudnut]

Is it possible to flush all the metal out of the steering gear while in the vehicle?

[PeeBee]

Craig, I might be ok, the metal shards and pieces were stuck to the magnet inside the PS pump tank. It looks like they have been there from the beginning, ie from when BD swapped the reservoir over to the pump. I know it didnt originate in my gagarge as the pump arrived all sealed up with plugs caps and it wasn't opened up until the connections were made and the thing filled with fluid. Simply piggy workshop practice.

[PeeBee]

Bonnet scoop turned out well. going to line the underside tomorrow, waiting for all the sikaflex to dry. Frames are 25x25x3 angle.bonnet front.JPGbonnet underside.JPG

[PeeBee]

Is it possible to flush all the metal out of the steering gear while in the vehicle?

Pic of removed pump, very healthy collection if fibres
pump metal.JPG