used viscous coupling question

[aleccolin]

Quick VC question. I just bought one used, and I was wondering if I should be able to operate it by hand (turn the shafts in relation to each other). I can't, it's stiff as shit, just wondering if that's normal. It looks like it may have been heated with a torch during removal since there's some black sooting on one side of it, but it doesn't look that bad really.

 

[aleccolin]

Here's some pics, if it'll help.

Note 1: This shows the outer side of the vc, which looks fine except for the stange "burned" looking area.

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Note 2: This shows the side, it has a "J X" stamped into it and the circumferential striations make it look like something may have been riding around the outside of it, like a belt, but I know that nothing does. Weird.

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Note 3: Here's a shot of the "back" side. You can see more of the "burned" area and a light blue colored plastic material which seems to be in between the case and shaft, protruding out in a couple of spots. In cleaning it up and wiping it off, I discovered some small pieces of a grey soft foam-rubber sort of material, about the size of a flea, inside the shaft. Not sure what this is or where these little chunks came from, hopefully it's something that just got stuck to the gear oil left on the splines.

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[Defiant]

I think that's where it was stained by the lube in whatever gearbox it'd been sitting in at the junkers for three years.

 

[aleccolin]

Okay yeah, I had considered that, but what about the function of the vc itself, should one be able to move it by hand, or should it be stiff like mine? I don't want to put it in if it's locked up.

 

[Laserlance]

Thats normal I just removed 2 in a week and it's normal you can probably move it an inch by hand but thats all.

 

[aleccolin]

Thats normal I just removed 2 in a week and it's normal you can probably move it an inch by hand but thats all.

Okay, that's cool. I can't move mine at ALL, and I'm not a weak dude, but hopefully it'll all work out.

 

[Laserlance]

I'm sure it will just let us know.