Re: hydraulic issue Ford 600

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Posted by Ultradog MN on December 05, 2019 at 06:02:28 [URL] [DELETE] :

In Reply to: Re: hydraulic issue Ford 600 posted by Tim Daley(MI) on December 04, 2019 at 18:43:15:

I don't know much about the HyTrol. I'm more of a three cylinder man not four. I'm thinking it was an early attempt at providing hydraulic flow control. It was only on the vane pumps - 53-56? I'm sure we have some Hundred Series or maybe NAA guys here who could tell us.
Flow control allows you to slow down the rate at which your lift arms would raise. On the vane pumps there is a little wheel? lever? on the side you can turn to increase/decrease the oil flow. Ford discontinued offering any kind of flow control when they went to piston pumps on the late Hundreds - through 1964. Flow control returned in 65 as a knob you can turn on the right side just below the draft/position lever. I've had it for years and have never used it except to fool around with it a bit. The later ones work by dumping off an adjustable portion of the oil coming from the pump back into the sump before it gets to the lift cover. You can make your lift rise very slow.
Dunno how the one on the vane pumps work.
Ford thought flow control was a good feature because they used it on most of their models from 1965 onward.

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