4l60e input drum cracks or porous?
Thread Starter
On The Tree
Joined: Dec 2014
Posts: 158
Likes: 39
4l60e input drum cracks or porous? So I was pressure testing an input drum to check for leaks around the shaft and low and behold, I get this tiny stream of bubbles coming from the "no man's land" where the selective washer resides. Not a line or a visible crack and it did not last the entire time I had pressure applied to the forward clutch hole. Just there about half a second then gone. Happened again when I was heating the drum up with a torch around the outside. Just a short half a second stream of bubbles then nothing. What gives?
Thread Starter
On The Tree
Joined: Dec 2014
Posts: 158
Likes: 39
I'd love too but currently I do not have a tripod or anything that could stand in place of a third arm. I'll see if I can get someone to help.
It would have to leak at a perfect 90* angle away from the shaft to the middle of the flat area in such small bubble sizes as not to be notice. Then rise directly straight up. I'm not saying that it is impossible but I think it's close.
TECH Junkie
Joined: Dec 2012
Posts: 3,618
Likes: 1,328
From: Iowa
Has the shaft been pressed in/out already?
If it has been and it wasn't supported properly, there's a solid chance the drum is cracked
My recommendation would be to put this drum/shaft combo in the wash tank and get it up to 180-200 degrees then leak test it. I bet it looks terrible when warm.
If it has been and it wasn't supported properly, there's a solid chance the drum is cracked
My recommendation would be to put this drum/shaft combo in the wash tank and get it up to 180-200 degrees then leak test it. I bet it looks terrible when warm.
Thread Starter
On The Tree
Joined: Dec 2014
Posts: 158
Likes: 39
Has the shaft been pressed in/out already?
If it has been and it wasn't supported properly, there's a solid chance the drum is cracked
My recommendation would be to put this drum/shaft combo in the wash tank and get it up to 180-200 degrees then leak test it. I bet it looks terrible when warm.
If it has been and it wasn't supported properly, there's a solid chance the drum is cracked
My recommendation would be to put this drum/shaft combo in the wash tank and get it up to 180-200 degrees then leak test it. I bet it looks terrible when warm.
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Thread Starter
On The Tree
Joined: Dec 2014
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