Car dieing/torque convertor update

[Marc Piccioni]

Suggest that you tear down the tranny, if the converter puked then the 
shrapnel can easily circulate. I rebuilt a TH350C that puked a converter, 
junk stuck everywhere in the clutches and valve body (mind you the filter 
was not very good).

----------
From: 	Roger Heflin[SMTP:rah at horizon.hit.net]
Sent: 	August 17, 1999 6:22 AM
To: 	gmecm at efi332.eng.ohio-state.edu
Subject: 	Re: Car dieing/torque convertor update



On Mon, 16 Aug 1999, CSH-HQ wrote:

> Just as a waste of bandwidth, let me guess.
>
> >The people who built the convertor are going to disassemble it, so
> >they will be able to tell me how it failed.
>
> Let's see, balloned, cracked stator, bearing, bad brazing.
> I'll go with balloned.
>

They can at least tell me if it was just the TCC or if other things
also failed.

> >> >the problem is still either the clutch is acting weird or the stall
> >> >speed has changed on the convertor,  I have having the convertor
> >> >removed and sent to the place that made it to have it checked and
> >> >fixed.
>
> While you mention TCC, the band can "drag", and do the same thing.
>
What sort of things would cause the band to drag?


>   I am not sure if I burnt the fluid racing or in the traffic
> >> >jam going home (it was about 100, and the car was moving at less than
> >> >5 mph, and the jam lasted close to an hour).
>
> Unless, you were keeping it at stall speed, shouldn't generated that much 
he

> Like to know how they can tell of it was fliud overheating vs, heat due 
to
> clutches slipping/converter slippage/band damage.
>
> >> If burnt the discs have probably been glazed overheated.  Did you add 
a
> >> tranny cooler?.
> >
> >I am going to have one added, I still cannot explain why the clutch
> >would still be grabbing good when it engages, and be dragging enough
> >at idle to kill/load the engine heavily.   It also looks like it got
> >gradually worse, would the TCC failing cause something to get worse?
> >The other option is did the stall on the covertor change (fins
> >straightened out?).
>
> Last "fin" job I saw was using a vega convertr onna 454.
> Cracked stators still happen.
>
> >> >And I was locking the convertor at 72mph in 2nd gear before the 2-3
> >> >shift, and then unlocking it at the bottom of 3rd, if the clutch is
> >> >going that is probably the cause and I am going to have them update
> >> >the convertor to be the 3 or 5 cluttch version, if the clutch was not
> >> >the problem I don't know if I am going to have the multiple clutches
> >> >put in.
> >>
> >> Multipul clutchs in TCC or 3-4th gear?.
> >> Bruce
> >
> >Multiple in the TCC.
>
> I gotta find a pic of that.
> Just to continue along with my 2 cents worth, it's been my best 
experience
> to just take it all in, and say how much to fix, and what quarantee?. 
 Guy I
> use runs Pro Comp, and said expensive first time, and I'll treat ya right 
> after that. Well, after 2 years changed converter to higher stall for 
$55,
> free fluid.  Was $700 cash the first time.  (Also, run Hayden's largest 
RV
> cooler.)

The covertor I had was already one of the high dollar ones.  They are
charging about 1/4-1/3 of original purchase price to fix things, and
that is less that what I could get a cheap one for.

Adding the multiple clutchs would be over and above what it costs to
fix things.


 > Bruce
> >
> >			Roger
> >
>
>




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