Re: Ultramatic gearbox
Posted by HH56 On 2023/7/30 15:33:53
I don't know for sure but it might be the timing valve restriction pin that helps control a manual low - high shift. You might check the timing valve and space referenced to see if there is already a pin in the location shown.
They did use stop pins to keep a valve restricted in a bore but that pin looks too short for that purpose. Don't see any other pins used as restrictions but also don't remember enough about the valve body in original Ultras to say if Packard used a similar restriction method in other places.
Attach file:
timing.jpg (55.36 KB)
They did use stop pins to keep a valve restricted in a bore but that pin looks too short for that purpose. Don't see any other pins used as restrictions but also don't remember enough about the valve body in original Ultras to say if Packard used a similar restriction method in other places.
Attach file:
timing.jpg (55.36 KB)
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