FOr my charger, I stuffed up the last box, and took the car off the road. I had the convertor reconditioned (it was nothing outrageous, just one with 500rpm higher stall rpm than std) and had it sitting in storage till the next transmission let go (which is actually a semi common thing if you abuse the bw autos, and frankly a 904 t/flite is the go)

Anyway I rebuilt yet another trans, and as I was about to fit it, I grabbed the convertor, and it wouldn't slide in all the way. I though it must just be being difficult, but to no avail. Luckily enough I had the old std convertor, and also had a bunch of transmission spares, litering the floor of my shed.

So I sat the convertors down and tried things one at a time. first tried a spare front pump impellor. Both went in no probs. Then tried a spare input shaft - both went in identical distances. Then I tried the front pump assembly that has a hollow pipe/shaft with splines on it, basically it is the stator support for the convertor. And hey presto - it went in a good 5-10mm further on the old convertor vs the new one.

A bit of a look with a led torch and it could be seen that a support splined section inside the convertor had been fitted 'upside down' so the splines on the front of the trans couldn't go in deep enough to let the convertor slide all the way back.

This may not be the case with yours, but stuff like this inevitibly happens from time to time, especially if the engineering shop doesn't do a million convertors of that particular brand/type every day. They fixed it up no sweat, no charge, even though I couldn't find the receipt and it had been sitting on the shelf for some time. If you can possibly repeat the sort of tests I did, by all means try it.

You also have to watch out with some transmissions - from the same make/model/family - they can have different input shafts and other stuff depending on which engine they were originally behind.

There's more than one jatco - jatco stands for something like japanese automatic trans corp, and so it's a brand not a specific trans model. there are more than one jatco type out there (nfi exactly how many)


It's also definitely possible, as already said, that the bellhousing are different and as such so are hte front or overall length of the torque convertor to suit it.