Too much torque can be a bad thing...

[Hocrest]

We haven't posted much info about the swap progress yet, but Tom at AWD is working to swap a Phase 2 4EAT into Melis's 92 Pearly. The major hold up was some wiring issues and my schedule which left the car unworked on for about a month.

Me and Melis went back down to NJ yesterday with a speedo corrector fresh from Australia and hopes of finishing the conversion. One of the issues was the Torque Control didn't seem to be working right and would begin to cut fuel at anything above 1/2 idle.

There are two signals out of the new TCU where we only had one, so we snipped the one wire, and proceeded to test it by power braking and revving it. Well that did it cause now it revved great with no sputtering

...then "crunch" "snap"...

Tom looks under the car to see a big puddle of gear fluid

At this point I think pics say it best...

After getting it on the lift, we saw this;


After pulling it off we saw the crack went almost all the way to the top.

It also sheared off the oil pump drive;


Here are pieces of the case;


Other pics here

Thinking there may have been a slight stress crack in the case already and we finished it off???

[SVXRide]

OMG! Makes Chike's cracked front diff look like child's play...
-Bill

p.s. any further "pointers" toward what siezed?

[bheinen74]

that wont be cheap in the long haul.
new front diff, and new tranny required.....think it was already cracked? were the guide pins to block both in there?

[Hocrest]

Originally Posted by bheinen74

that wont be cheap in the long haul.
new front diff, and new tranny required.....think it was already cracked? were the guide pins to block both in there?

Shouldn't be too bad... Only a couple hundred into it at this point.

Yeah, both guide pins were there.

[subeman90]

woah!

[TomsSVX]

nothing seized really. Just got full power from the powerblocking. i didn't even notice what the rpms were at when I was doing it just listening to the engine. I was actually beginning to let off when it happened. Initial thoughts are that the case was weak or cracked in the first place and we were simply not aware of it.

We will be fitting a phase 1 case to the new trans so we can use the stock speed sensor #2 as long as we can use the phase I carrier on the new gearset. I will be investigating this a little later in the week to see if it is possible.

tom

[bheinen74]

what about the pump shaft.....

[TomsSVX]

Originally Posted by bheinen74

what about the pump shaft.....

what is stuck inside it is the t/c stay shaft. When the diff came apart it cocked the whole assembly and snapped the t/c stay off.

Tom

[kwren]

I am far from an expert but at a glance I would surmise it might be broken...

Keith