I was doing some transmission work on my 1982 300D (722.3 tranny). Replaced the main pump, specifically. When I put it together and filled it up, the oil was coming out as a continuous slow stream.

Drained it and investigated the pan with a straight edge. It was warped and it was fairly obvious. Essentially, the pan was slightly bent down the middle: the imaginary line connecting the two bolts in the middle of each side was way above the rest of the mating surface.

Standard disclaimer: I am not saying that everyone should straighten their pans out this way. This worked for me but ymmv.

On the press plate, the edges of the pan rest on two pieces of 2x6 (its what I had lying around). The middle of the pan, gasket side, has a piece of a 2x4 on it, cut at an angle, because the 722.3 pan has different height sides.

Now gently apply pressure. A little bit goes a long way. Release the ram and check with your straight edge. Repeat if necessary. Move the boards around so that the angle-cut board under the ram follows the line that connects the high spots on the two sides of the pan.

I have no leaks now and the pan bolts are torqued to spec which is not much at all.

I had a leak at the dipstick tube but that's fixed now too

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'82 300D (project)
'46 Willys (project)
"Nothing seems to be the way it should in this garage." -jt20
"Smarter than an engine, dumber than a hoodlatch..." -jt20
"Start jumping up and down to smoosh down those engine mounts" -DeliveryValve
"no" -kerry
"At this rate, you may have it done by winter" -layback40

That's essentially how we straightened aluminum arrows when they get out of align. Find the high spot. Apply a little pressure, recheck, apply a little more pressure, recheck until straight.

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85SD 240K & stopped counting painted, putting bac together. 84SD 180,000. sold to a neighbor and member here but I forget his handle. The 84 is much improved from when I had it. 85TD beginning to repair to DD status. Lots of stuff to do.

the hardest thing for me was the "little pressure" part. No matter what, you must resist the temptation to give it "just one more pump" of that hydraulic jack

__________________

'82 300D (project)
'46 Willys (project)
"Nothing seems to be the way it should in this garage." -jt20
"Smarter than an engine, dumber than a hoodlatch..." -jt20
"Start jumping up and down to smoosh down those engine mounts" -DeliveryValve
"no" -kerry
"At this rate, you may have it done by winter" -layback40