Too much torque can be a bad thing...

Hocrest · #1 01-04-2009, 06:18 PM

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 · #2 01-04-2009, 07:07 PM

OMG!

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

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

bheinen74 · #3 01-04-2009, 07:38 PM

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 · #4 01-04-2009, 07:41 PM

Quote:

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 · #5 01-04-2009, 08:19 PM

woah!

TomsSVX · #6 01-04-2009, 08:30 PM

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 · #7 01-04-2009, 08:49 PM

what about the pump shaft.....

TomsSVX · #8 01-04-2009, 09:11 PM

Quote:

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 · #9 01-05-2009, 12:46 AM

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

Keith

Mensaf · #10 01-05-2009, 03:48 PM

You guys need to find one of those 5EATs from the JDM WRX's and try swapping in one of those. That would be rocksome.

1986nate · #11 01-05-2009, 03:52 PM

Quote:

Originally Posted by Mensaf

You guys need to find one of those 5EATs from the JDM WRX's and try swapping in one of those. That would be rocksome.

Thats the goal for them. This was sorta a stepping stone so to say. Also those 5EATs are uber expensive

SUBBYRU89 · #12 01-05-2009, 05:04 PM

If I win the Publishers Clearing House millions you know I'd give them a blank check for whatever, but until then the project needs to start off small and work it's way up.

I still say if I wasn't there to witness the mess I wouldn't believe it.

Smiles,
Melis

NiftySVX · #13 01-06-2009, 03:16 PM

This is a really cool project, I am glad someone is finally undertaking it. Hopefully, we can have a kit like we do for a m/t conversion, I would really like to have a 5eat, especially with that VTD AWD

TomsSVX · #14 01-06-2009, 03:21 PM

Quote:

Originally Posted by NiftySVX

This is a really cool project, I am glad someone is finally undertaking it. Hopefully, we can have a kit like we do for a m/t conversion, I would really like to have a 5eat, especially with that VTD AWD

Well the hardware is all a bolt-in. It comes down to making jumper harnesses to go from the new to old that makes it plug-n-play.

Tom

Turbone · #15 01-06-2009, 09:43 PM

Quote:

Originally Posted by SUBBYRU89

If I win the Publishers Clearing House millions you know I'd give them a blank check for whatever, but until then the project needs to start off small and work it's way up.

I still say if I wasn't there to witness the mess I wouldn't believe it.

Smiles,
Melis

Melis, I think you have the official record for fubared trannies/diffs