Re: Packard Hydro-E System
Posted by HH56 On 2012/12/23 12:12:04
Ross makes a good point but if you're keeping 6 volts there are not many electric options other than finding some old Chrysler or Ford systems to modify. Don't believe any of the aftermarket units are available in 6v.
A couple of things I found when doing a 54 with hydro windows some 15 years ago. The pressure spec is important against the huge springs. If the pump is the least bit worn, it may not be able to deliver so a go thru isn't a bad idea. If you are using Hydro's services and repro cylinders, hopefully they will have a recommendation as to fluid. Some articles at the time recommended silicone fluid or ATF to protect the door bottom paint from inevitable leaks. I'd be concerned about the silicone being too watery to develop adequate pressure if pump is worn but the ATF might work. I stuck with regular brake fluid as Packard spec'd.
If anyone has tried either silicone or ATF, might be nice to have a first hand report.The repro cylinders available then didn't hold up well and when I last saw the car a couple of years ago the paint had blistered at the bottom of one door. Current owner said it had leaked so in hindsight, trying one of the other fluids might have been a good idea.
Another thing is Packard detailed documentation is somewhat sparse. Generic though it may be, here's a few pages from an old Motor's manual which might fill in some blanks on the pump. Packard used the Dura pump.
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A couple of things I found when doing a 54 with hydro windows some 15 years ago. The pressure spec is important against the huge springs. If the pump is the least bit worn, it may not be able to deliver so a go thru isn't a bad idea. If you are using Hydro's services and repro cylinders, hopefully they will have a recommendation as to fluid. Some articles at the time recommended silicone fluid or ATF to protect the door bottom paint from inevitable leaks. I'd be concerned about the silicone being too watery to develop adequate pressure if pump is worn but the ATF might work. I stuck with regular brake fluid as Packard spec'd.
If anyone has tried either silicone or ATF, might be nice to have a first hand report.The repro cylinders available then didn't hold up well and when I last saw the car a couple of years ago the paint had blistered at the bottom of one door. Current owner said it had leaked so in hindsight, trying one of the other fluids might have been a good idea.
Another thing is Packard detailed documentation is somewhat sparse. Generic though it may be, here's a few pages from an old Motor's manual which might fill in some blanks on the pump. Packard used the Dura pump.
Attach file:
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