Re: Twin Ultramatic Problem
Posted by HH56 On 2012/9/9 22:36:11
Quote:
Riki wrote:
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.
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.
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