Torque converter drain

[bryesh]

Has anyone installed a train for a stock torque converter? I'm thinking about drilling and tapping a d5 so that I can drain all the old fluid out.

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[1KWIKSIX]

I've heard of this being done before......however, I'd be concerned about it throwing the TC out of balance.

 

[blackazz]

I drilled an drained mine.then just weld the hole. Well tranny shop did it.

 

[bryesh]

I was thinking about tapping it for 1/8 npt.

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[achalmersman]

I have to ask. What's the point? Why do you need to drain it?

 

[bryesh]

To get any shavings out from drilling it !


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[bryesh]

In all seriousness some converters I've been looking at have been sitting for years and who know what the fluid was like back then, nonetheless a decade or more later . If I'm going to get a rebuilt transmission or rebuild one, I just like to be able to change every ounce of fluid and flush whatever debris is in the converter out, that's all.

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[INEEDAGN]

if its not in the car just put it on a coffee can and drain it. If you are worried about it, slowly add a bunch of fresh fluid and then drain it again. Or if you have any reason to doubt the converter, just buy a new one.

My DD is running a D5 that I got with a BR core almost 10 years ago. Drained it and ran it.

 

[Dusty Bradford]

If your worried about contamination, it needs to be cut open and cleaned.

If you just want to get the old fluid out. Drain it into a coffee can or something as described and refill with clean fluid.

It is possible to flush them by drilling and tapping for a 1/8", then pumping fluid through them. When complete you screw a pipe plug into the hole, then weld it. If it were mine and I was worried about some sort of contamination, I'd open it for cleaning.