Even without knowing WHAT is leaking, engine and Hydro must be separated (pull engine or trans or both). R & R of an early HydraMatic is quite nasty- usually better off pulling engine/trans as a unit.
Last summer (for reasons I won't try to explain here) I pulled the HydroStick out the bottom of my GMC to repair it- nasty, nasty. I did come up with one improvement to the process (posted a picture somewhere in this forum)- I machined the flywheel for a square-section O-ring in place of the paper gasket, which made re-installing the hydro MUCH smoother.
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Anybody else on this planet campaign a M/T hemi Pontiac for eleven seasons?
... or has built a record breaking DOHC hemi four cylinder Pontiac?
... or has driven a couple laps of Nuerburgring with Tri-Power Pontiac power?(back in 1967)
Last edited by Jack Gifford; 04-30-2020 at 03:05 PM.
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