BW T-10 Gasket replacement

[Philip P.]

Being winter and nothing else to do I removed the engine and transmission from the car. It has a small leak between the main case and tailshaft. Any tips on replacing all the gaskets, transmission work fine so there are no issuses with that just the leak.
Thanks
Phil
1960

[John H.]

Re: BW T-10 Gasket replacement

Being winter and nothing else to do I removed the engine and transmission from the car. It has a small leak between the main case and tailshaft. Any tips on replacing all the gaskets, transmission work fine so there are no issuses with that just the leak.
Thanks
Phil
1960

Phil -

The T-10 4-speed isn't included in the ST-12, as it was shared with passenger cars; the 1961 Passenger Car Shop Manual has a highly-detailed chapter on overhauling the T-10 - it's available from the NCRS store. There are four gaskets on a T-10; one for the front bearing retainer, one for the side cover, and two for the midplate (plus O-rings on the 1-2, 3-4, and reverse shifter shafts). Might as well replace the output shaft seal too while it's out of the car.

[Joe R.]

Re: BW T-10 Gasket replacement

Phil,

The rebuild gasket set was PN 3960199 for the T-10.

Incidentally the part number for the Muncie rebuild gasket was 3917763

The above gasket sets are the bare bones and does not include the rear main gasket for the output shaft.

Joe

[Richard T.]

Re: BW T-10 Gasket replacement

Any brand of sealer work best? My 62 trans was done a couple of years ago and operates great but leaks more than it did originally. Rich

[Edward J.]

Re: BW T-10 Gasket replacement

Being winter and nothing else to do I removed the engine and transmission from the car. It has a small leak between the main case and tailshaft. Any tips on replacing all the gaskets, transmission work fine so there are no issuses with that just the leak.
Thanks
Phil
1960

Phil, The gaskets at the rear tail and mid plate will basicly require dissy. of the transmisson, As John says a manuel is the only way to go if you haven't had any experience with the T-10.

[Philip P.]

Re: BW T-10 Gasket replacement

Thanks all, I do have the 1959-60 Passenger Car Supplement and it covers the 4 speed. I did get a gasket kit with o-rings and tail shaft now I have to decide how I want to proceed. This whole project started with a cam switch and the engine is now going to be "refreshed", it is the "might just as well" because it is out of the car. Not enough room for the parts that have been ordered.
Phil

[Domenic T.]

Re: BW T-10 Gasket replacement

Phillip,

I don't have a borg Warner apart in the shop and have only done muncies lately, but I think there is a bolt that needed to be sealed that bolted the tail housing to the case.

I did a lot of borg warner 4 speeds in the day and find myself still looking for the bolt to seal when I do muncies.

I remember sealing bolts that entered the case and that may be the leak.

DOM

[Philip P.]

Re: BW T-10 Gasket replacement

Dom,
Thanks for the information the leak is small I mean a drip. I will take a look at the bolts and see about sealing them that would make my day if I do not have to take it apart.
Thanks
Phil

[Joe R.]

Re: BW T-10 Gasket replacement

Phillip,

I don't have a borg Warner apart in the shop and have only done muncies lately, but I think there is a bolt that needed to be sealed that bolted the tail housing to the case.

I did a lot of borg warner 4 speeds in the day and find myself still looking for the bolt to seal when I do muncies.

I remember sealing bolts that entered the case and that may be the leak.

DOM

Dom,

Think you are talking about the rear end of the countershaft. If it ain't sealed you can bet it's gonna leak.

JR

[Domenic T.]

Re: BW T-10 Gasket replacement

Joe,
Actually it was a bolt that I am almost sure goes thru the tail housing, center plate, and into the case.

I seem to remember using a sealer on the borg warner bolts.

I think the side cover may also have bolts that enter the case also.

DOM

[Tom P.]

Re: BW T-10 Gasket replacement

Joe,
Actually it was a bolt that I am almost sure goes thru the tail housing, center plate, and into the case.

I seem to remember using a sealer on the borg warner bolts.

I think the side cover may also have bolts that enter the case also.

DOM

That is correct!!! ONE bolt through the tail housing into the main case is a through hole.

[Joe R.]

Re: BW T-10 Gasket replacement

Joe,
Actually it was a bolt that I am almost sure goes thru the tail housing, center plate, and into the case.

I seem to remember using a sealer on the borg warner bolts.

I think the side cover may also have bolts that enter the case also.

DOM

Dom,

I'm on the right channel now! Yes, a bolt that holds the tail housing on and several side cover bolts. Never thought about it as I usually use sealant on all the bolts.

JR

[Edward J.]

Re: BW T-10 Gasket replacement

As does the front T/O retainer bolts go through the case. I just finished rebuilding a T10.

[Joe R.]

Re: BW T-10 Gasket replacement

Well, I'm going to retract what I said about the holes going thru in the rear and side cover. Well at least for the one on the bench which is a T-10 1C the rear bolts do not go thru and neither does any of the side cover bolts. They have raised bosses on the inside for all those bolts. The front bearing retainer does have holes all the way into the case.
Maybe some T-10's are different. Don't have the time to pull out all the cases.


JR