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Curly
 Post subject: Hydro Pump - operation
PostPosted: Tue Sep 16, 2014 4:57 pm 
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Just picked up this old hydrolastic pump from a garage that used to be a local BMC agent and would like to know how to use it. I don't have any hydro cars myself, but have a few mates who do and they might like to make use of it
Does anyone have a set of instructions?

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Curly
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'67 Mini Marcos GT www.mm7056.wordpress.com
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winabbey
PostPosted: Tue Sep 16, 2014 5:42 pm 
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Nice find. These are becoming quite rare.

Below are some posts specific to your questions. I suggest you search the forum using the term 'hydrolastic' and/or 'pump' as there's quite a bit of information here.

viewtopic.php?f=2&t=84853

viewtopic.php?f=2&t=63794

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1310/71
PostPosted: Tue Sep 16, 2014 5:44 pm 
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I think Morris 1100 has posted instructions before, maybe contact him.

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Morris 1100
PostPosted: Tue Sep 16, 2014 6:07 pm 
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Instructions for using the Factory Churchill/Austaloy Hydrolastic Suspension Pump:

Quote:
To discharge fluid from the displacers:

Fit black connector to displacer valve with knurled knob unscrewed. Open black valve on left hand side of unit. Screw knurled knob in fully. When pressure drops to zero, unscrew knurled knob and remove connector from displacer valve.

To evacuate air from the displacers:
Fit Yellow connector to the displacer valve. Close yellow valve on right hand side of unit. Operate vacuum pump (yellow handle) slowly until at least 27 inches of Mercury is held on gauge and movement of fluid has stopped. Open yellow valve on right side of unit and allow pressure to drop to zero. Disconnect the yellow connector from the hydrolastic displacer valve.

To pressurize system:

Fit black connector to displacer valve with knurled knob unscrewed. Close black valve on left hand side of unit. Open bleeder valve near the connector attached to the displacer valve. Slowly pump the black handle until only fluid, not air, is being purged from bleed valve. Close bleed valve. Screw knurled knob in fully. Begin pumping black handle slowly to pressurize system. Pump until the system reaches the proper pressure. Bounce suspension a few times to make sure that the maximum pressure is still held. Pump in more fluid if needed to put system at proper pressure. Unscrew knurled knob. Open black valve on left hand side of unit. When pressure has bled off to zero, remove black connector from displacer fill valve.


Add some oil to the vacuum pump before use.
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Curly
PostPosted: Tue Sep 16, 2014 6:18 pm 
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Brilliant :D Just what I was looking for.

A big THANKYOU to Morris 1100.

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Curly
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winabbey
PostPosted: Tue Sep 16, 2014 7:19 pm 
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Curly - PM sent about another matter, not the pump.

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Bill B
PostPosted: Thu Sep 18, 2014 6:54 pm 
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You probably don't need this but, if interested, I have the original instruction sheets that came with the hydro pump. They are just 2 sheets of paper with the instructions that Morris 1100 has supplied as well as sketches of the pump and oiling points.
Also, I have modified my pump slightly so that old fluid from the car is dumped into a plastic drink bottle rather that returned to the reservoir where it contaminates the new fluid. The old fluid is reusable if let stand a few days and the rust settles out of suspension.
Bill.
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Curly
PostPosted: Thu Sep 18, 2014 7:22 pm 
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Bill B wrote:
You probably don't need this but, if interested, I have the original instruction sheets that came with the hydro pump. They are just 2 sheets of paper with the instructions that Morris 1100 has supplied as well as sketches of the pump and oiling points.
Also, I have modified my pump slightly so that old fluid from the car is dumped into a plastic drink bottle rather that returned to the reservoir where it contaminates the new fluid. The old fluid is reusable if let stand a few days and the rust settles out of suspension.
Bill.

Thanks Bill, I think I'll be right with the instructions Morris 1100 has posted, but if you'd like to scan the 2 pages and post them here, I'm sure that they'd come in useful down the track for those of us with hydrolastic pumps.

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Mick
PostPosted: Thu Sep 18, 2014 7:31 pm 
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I'll put them up in the Brochures Section too as it would be of interest to the greater mini community, if that is OK by you Bill.

I'm mucking about in their now with a special little manual...

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Bill B
PostPosted: Fri Sep 19, 2014 2:27 pm 
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Mick,
since I'm not sure about posting photos or scans into a reply - I know I need to learn sometime - can I send you an email with the scans attached?
Bill
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winabbey
PostPosted: Fri Sep 19, 2014 2:38 pm 
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Bill B wrote:
Mick,
since I'm not sure about posting photos or scans into a reply - I know I need to learn sometime - can I send you an email with the scans attached?
Bill

Bill - PM sent.
Mick - I will fix.

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Mick
PostPosted: Fri Sep 19, 2014 2:41 pm 
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Sure! But when you post, scroll down a little further and you will see the attachment link below. Im on my phone as im out and about, so I cant describe it fully, but it lets you upload one at a time. Just repeat untill you get all your pics up in the one post.

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Mick
PostPosted: Fri Sep 19, 2014 2:41 pm 
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Ok thx Doug.

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