Sealing a tight fit 1

[Dave21426]

I have an intermediate shaft in a transmission unit that goes thru a cast iron hole in the case. .0005 max gap and even with thick gear oil it leaks. I need something very thin that can get into that gap and seal it.

 

[Dave21426]

A sleeve with .00025 wall, good luck with that. Loctite 200 series is the only stuff like wicks so I may try that. Back in the day, 1940's, they used 600w oil but I am not sure where to buy a small amount of it.

 

[mfgenggear]

the only correct solution is to take it apart & repair it properly.
any time there is jerry rigging it will never work correctly.

loctite is a temporary fix, I have encounter this type issue before.
& it just leaks again. so then you have either fix it right or live with it.
loctite will be temporary fix.

Mfgenggear
if it can be built it can be calculated.
if it can be calculated it can be built.

 

[dgallup]

Put some saw dust & banana peels in there and sell it quick.

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The Help for this program was created in Windows Help format, which depends on a feature that isn't included in this version of Windows.

 

[chicopee]

Seal weld the shaft on the outside then it can be ground if the shaft has to be removed.

 

[1gibson]

Spray it real good with brake cleaner, then see if a torch and plumbing solder would wick in? Not exactly an engineering opinion but that's what I would try in my garage.

 

[mfgenggear]

i like that Idea, if the solder will stick.
sometime it will just peel if isn't cleaned properly.
or leak but the leak would be small.



Mfgenggear
if it can be built it can be calculated.
if it can be calculated it can be built.

 

[mfgenggear]

also that it may not wick if there too much contaminate in between the surfaces.

Mfgenggear
if it can be built it can be calculated.
if it can be calculated it can be built.

 

[IFRs]

JB Weld

 

[IFRs]

Wrap some SS shim stock around the shaft and pound it in the gap?