Ferrari Mailing List: Re: Help with transmission leak

[Britt2Asa (Britt2Asa]

I am pretty sure its the input seal. The tranny works perfectly, silky  
smooth and I don't want to pull it to fix this. Its just to much work and  
expense 
for a leak. There aren't any "tranny pros" over here for Autos much less  for 
a 400i tranny. At the going rate of Ferrari mechanics it would be a hefty  
bill and no guarantee they know what they are doing anyway with a GM auto. I  
know that a cure in a can is not a sure thing but thought I would give it a  go.
 
Britt

Where is  it leaking?

Pan gasket?  (which would be easy to fix)
Input  seal?  (Minor difficulty to change - tranny pro
could do it in 1/2 day  on a "regular" car.  400i, I don't know)
Tail housing seal?   (should be easy to change.)

Unfortunately, most TH400 leaks that I've  seen were in the
input.

I don't know of a 'stop leak' product that I  would trust, but
try getting an estimate from a tranny shop.  It might  not be
that bad.

Hans.

On 4/7/08, Britt2Asa [at] aol.com  <Britt2Asa [at] aol.com> wrote:
> Hi Guys,
>
> The 400i has  had a very slight leak in the automatic transmission for the
> past 4  years. It messes up the garage. I do not want to strip out the 
tranny
>  (had enough on this car it it works perfectly). Is there any such thing as 
 a
> tansmission leak stopper I could try. Its a GM 400 series auto box.  Over 
here in
>  the UK not so common but seeing as they made  millions of them for the 
states
> can  anyone advise if there is a  "leak stopper" in a can I can try that
> wouldn't  damage the  transmission. Kind of like Bars Leak (which does 
work!) but
> for  a  tranny.
>
> Thanks for you thoughts.
>
>  Britt
>
> BR in the  UK





BR in the  UK
1986 328GTS (LHD 89,940km) Died August 19, 2006 Shrewsbury UK
1980 400i  (RHD 72,000 miles)
Searching for the right 512TR
2003 BMW 530d
1991  Alfa Spider S4