Packard Forum Index » V-8 (1955-56)

Another note for Ross:

I agree fully about the turbine shaft and bushings.

The last time I serviced one it seemed to me that if the shaft was turned in a lathe to accepts soft seals - as used in the Turbo Hydramatic etal - then the whole issue of pressure loss would be reduced significantly.

Have you ever talked about this?

Rocky,

that leak at bell housing, packard has the oil hole drilled past the bell housing bushing, towards torque converter, don;t know why, because oil goes right to seal lip. maybe thats why to oil lip. but thats alot of pressure, i noticed that on my bell housing, was thinking of plugging it, i am going with needle bearing, i was going to ask Ross about it, the oil hole should be reduced at least, it looks bigger than 1/8th inch.

Tim,

Is there a picture of trans shaft,,,hey i will do it with mine.........just need to see where seals go, thanks rik

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Am wondering which hole you are speaking of and what bushing you are replacing with a needle bearing.

The drain hole is the only one I can think of which fits that description. The basic front bushing and shaft design has been essentially unchanged since the first. Early on Packard actually enlarged the drain hole from the original 3/16" to 1/4" to prevent leaks past the seal. A bushing which is doing the job shouldn't be allowing that much pressurized fluid past it for the seal to contain but what is there needs to go somewhere quickly so it doesn't build up. I don't think those seals can hold that much pressure.

Believe the front bushing also forms part of the oil circuit into torque converter so wonder how a needle bearing would work there if that's the one you are changing.

Hi, Howard,

Shortly I will be blogging my ultra project, but, I am refering to bell housing bushing. there is a hole right where the seal bottoms out, just in from that. thats a drain hole?, its like 3/16s,,seems to me the spare bell housing i have the bushing extends into that area,,have to look again..,,so if that is blocked, then oil from bushing/shaft, would work out of the seal, cause i know mine leaked .

The needle bearing is R/D,, reducing friction,,,been held up with machine shop...oil pressure?, remains to been seen, the only bushing I cannot replace with needle bearing, is the ft pump, that goes into high range clutch, that will be made alum. bronze, I will be making that, next ultra project, will be to use all alum bronze for bushings..with that chrome hardened the shafts, if the chrome won't mess with valve bodies..

rik

Rik, suggest you spend some time with your trans and with the hydraulic diagrams and figure out how different pressures get where they need to go. Many times the bushings are necessary to get oil under pressure where it needs to go.

For example, the torque convertor is filled (and pressurized) through the groove in the center of the bell housing bushing. If you replace that with a needle bearing, you will need a whole new path to fill the convertor.

Dear Riki:

If you want to try that, the best method would be to get the two parts and take them to someone.

There may not be anything that fits. I wouldn't take a working transmission apart for the sake of testing my idea.

Thanks. Ross..i will..do that...but a company did this in the 60s ..if steve williams were still with us he could explain..what was done..


Thanks ross.....

Hi..Tim..

My trans is all apart..going to look into it... What car uses that hydro?....i forgot...what type trans.. While writing this i forgot...

Too much on the brain........

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I have now adjusted the sliding link some mm, without any "result", and wonder what kind of length I have to adjust it.
Does anybody know?

Tom