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[Marks DTM Calib]

the seal just press fits into the bellhousing and is secured by three screws

I assume with a retaining plate, or is there a flange on the seal for the screws.?

Marie you may wish to consider carefully using 2 self tapping screws into the seal in order to lever it out, or also you could knock up a sort of u shaped plate to allow you to lever onto the side of the casing. This technique is used to remove crankshft seals.

OK not good looks and sounds like its going to be a b*tch to get off. i might try it on the old one first.

Easy enough.

The thread is just a set of small lip seals to seal the outer.

You can remove the old one with a screw driver.

Keep the old seal as it will work as a drift to help fit the new one.

[Marie]

the seal just press fits into the bellhousing and is secured by three screws

I assume with a retaining plate, or is there a flange on the seal for the screws.?

Marie you may wish to consider carefully using 2 self tapping screws into the seal in order to lever it out, or also you could knock up a sort of u shaped plate to allow you to lever onto the side of the casing. This technique is used to remove crankshft seals.

OK not good looks and sounds like its going to be a b*tch to get off. i might try it on the old one first.

Easy enough.

The thread is just a set of small lip seals to seal the outer.

You can remove the old one with a screw driver.

Keep the old seal as it will work as a drift to help fit the new one.

Cheers mark.

Just wish you lived closer i would have got you to do it for me.

ill have a go at getting the old one off the old gearbox and let you know what happens.

[sassanach]

you can press the seal in with finger power it is'nt that tight!

[sassanach]

im curious Debs about these american slushboxs you've played with, enlighten.

[Marie]

you can press the seal in with finger power it is'nt that tight!

cheers.

do you think that this is whats causing the leak? i hope so what else could it be? the gearbox works as it should in every other way.

[sassanach]

 as its the only seal in the bellhousing it must be the leak

[Marie]

as its the only seal in the bellhousing it must be the leak

Thought it was thankyou very much.

[Debs.]

im curious Debs about these american slushboxs you've played with, enlighten.

GM Turbo hydramatic 350 and 400 (with and without electric T.C O/D clutches).
I have rebuilt and modified many of them (line-pressure/change-points and T.C 'stall' changes etc.

The days before E.C.U`s of course.....but with a small or big block Chevvy V8 providing the power the TH 350 could deliver some incredible quarter-mile times....and be very reliable too!  

[sassanach]

so if the th400 in the eldo goes t*ts up i'll know where to come.

[Debs.]

so if the th400 in the eldo goes t*ts up i'll know where to come.

Yup, `still got all the repair/rebuild factory-manuals and slide-pullers etc.......easy transmissions to work on and if you obey the cool and clean rule will last donkey`s years!  

The various U.S (aftermarket) 'Towing' shift-modification kits for the TH400 are very good (new valve-body plate, heavy-gauge accumulator spring)....shifts are firmer and line pressures higher, giving faster changes and less wear/heat...the kits are dirt-cheap, and fitted in an afternoon (in car) and lengthen the life of the transmission considerably.

Shift Kit (just as example): click-link, scroll down to TH400....the "Heavy Duty" option would be perfect for daily use and not snap your head clean-off your neck like street-strip/competition versions.
http://www.transmissioncenter.net/Shift_Kits.htm

[Marie]

Right its comin of on the 26th!

i have called 2 local gearbox specailists.
One has said defo the tc seal and if i cant get it off i can take it to them they will swap the seals for me at a small cost. and even keep the garage open a bit later if we cant get the box off before 12noon on the sat. ( this is when they close).

The other gearbox specialist said he dont think its the tc seal its the bolt gaskets failed. ? i have never heard of this and think hes tryin to con me. he also mentioned that cos my old box got flooded with water that i should change the Torque converter as it will have been contaminated. and their is no way of tellin if its good or not.

well im going with the first garage they were really nice and very helpful. more so when they found out i fix the car and not the hubby!