Re: [Chrysler300] Pan gasket - Transmission

[Gary W Nelson <Gary@xxxx>]

I have not seen anybody address a likely leak problem that can occur on any 
pan. After years of pan bolts being tightened w/o a torque wrench the metal 
gets pulled up around ea. pan bolt. Going from memory pan bolts only 
require 18 ft lbs torque, (check your manual).
Before a pan is reinstalled you must first flatten the dimples back down. 
Due to the lip on the pan you can not, (should not) try to hold the edge of 
pan on a flat surface and hammer them down. Take a socket that will clear 
the pan lip, (outside surface), but as large as possible to allow the metal 
to move back as you hammer the dimple down on top of socket. take it easy 
the metal will move easy.
If this is not done the dimples will seal nice at the bolts and leave the 
gasket between with little pressure to seal.
As far as a T.F. pressurizing I do not belive that can happen. They are 
vented just above the tail shaft housing. I have re built some real scuzzy 
trans and never found them plugged.

Gary, The Parts Doc

At 09:29 AM 02/11/2003 -0700, Warren R Anderson wrote:


> >
> >I don't know about your 57 but I used a NAPA 1-7957 gasket/filter kit on my
> >62. Of course all I needed was a gasket. The kit comes with two types
> of
> >gaskets and the filter.
>
> NAPA consolidated the 904 and 727; one gasket(2)/filter kit number for
> either.
>
> Noted in Fel Pro and Victor Reinz that gasket only is available, '62 up. Fel
> Pro shows earlier TF units and Powerflite. There is also a highly
> recommended Tuff-Cork gasket in Victor, '62 up. This product has a steel
> stiffener. This can be helpful with troublesome leakers. If the trans pan is
> super flat on the sealing flanges, both flanges are clean and super dry and
> the pan screws are torqued properly and a pan leak persists, this gasket can
> help. It does cost more. And, I have had problems getting gasket only
> through NAPA using their transmission parts line, so Fel Pro and Victor
> lines could be alternate sources.
>
> BTW, most trans people abhor the use of any kind of sealer on trans pans. I
> have known Torqueflites to pressurize the case and no gasket will seal it.
> Most pan leaks are installer caused. Static pressure (inherent because fluid
> level is above pan flange) and time/non driving are leak factors too.
>
> Warren Anderson
> Sedona,AZ
>
>
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