Hello all. I want to hot-tank the oil filter housing on the OM617 that I'm rebuilding and I can't get the bypass valve out. It has a plastic piece in there that I don't want to "cook" in the hot tank. It is in the smaller of the 2 holes with what looks like a big flathead screwdriver notch in the top. Has anyone removed this? Any tips on getting it out? I'm hoping it doesn't require a special tool.

Thanks!
Alex

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I know you want to hot tank it but it isn't too difficult of a part to clean by hand. I have no idea about removing that valve but just a thought if you can't figure it out.

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If the "hot tank" that you have in mind is that which is used for iron parts, refrain. The solution in the tank is caustic, and will dissolve aluminum.

I figured it out and got the bypass valve out. I had to make my own tool out of a 3/4" impact socket. At first, I tried cutting down an old beat up spark plug socket but the material wasn't strong enough so the ears bent when I tried to turn out the valve. The impact socket is much thicker and stronger and worked very well.

The measurements are as follows:
Ear width- 4.2 mm
Ear height- 4.4 mm
Overall socket length- 82.4 mm
Socket outside diameter- 28.2 mm

Hopefully this will help someone in the future.

Alex

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