Help! Have I screwd up? Taking BW65 gearbox off.

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rich112
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Help! Have I screwd up? Taking BW65 gearbox off.

Post by rich112 »

I have a Rover v8 with Borg Warner 65 gearbox on.

I've just taken the engine and gearbox out of the car.

I seperated the gearbox from the engine, without undoing the torque converter to flex plate bolts... :oops:

I've since read that this is not a good idea as refitting can damage the gearbox?

Is this true or is it only a problem with more modern gearboxes?

Looking at the gearbox, there are two coaxial splined shafts and a two pronged/sloted ring which obviously all has to mate with the internals of the torque converter.

As I have not rotated the crank or gearbox, shouldn't I just be able to take the torque converter off and slide it back onto the gearbox, if I'm careful to align it?



paul c
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Re: Help! Have I screwd up? Taking BW65 gearbox off.

Post by paul c »

when you try to fit it again stand the box up on its tailhousing so you can fit the convertor flat onto the shafts, normally one will mate before the other and slight rotation might be needed just being careful of the seals. It is normally not possible for them to go back in with the box sitting level. It should all be okay though, have done it several times.

rich112
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Re: Help! Have I screwd up? Taking BW65 gearbox off.

Post by rich112 »

paul c wrote:
Wed Jan 12, 2022 4:21 am
when you try to fit it again stand the box up on its tailhousing so you can fit the convertor flat onto the shafts, normally one will mate before the other and slight rotation might be needed just being careful of the seals. It is normally not possible for them to go back in with the box sitting level. It should all be okay though, have done it several times.
Got you! I'll try that today. Fingers crossed!

DaveEFI
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Re: Help! Have I screwd up? Taking BW65 gearbox off.

Post by DaveEFI »

The problem with this way is not getting it to fit, but the chances of damaging a seal.
Dave
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rich112
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Re: Help! Have I screwd up? Taking BW65 gearbox off.

Post by rich112 »

Well I stood the gearbox up on end and the TC dropped in. I lubed the seal and shaft beforehand.

The TC does seem to be a little wobbly though. Is that normal?

https://youtu.be/CXG8a7JTwWA

DaveEFI
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Re: Help! Have I screwd up? Taking BW65 gearbox off.

Post by DaveEFI »

Yes it might move slightly since only supported one side.

I read it as you were going to replace the box, TC still on the engine. That's when seals can get damaged. Not by fitting the TC to the box, off the car, so sorry.
Dave
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