uprated viscous cupplings

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Re: uprated viscous cupplings

Postby st185-sainz » Thu Nov 17, 2016 8:17 pm

Would have one in stock ready for shipping. Setting 350Nm@50RPM
Unit goes in exchange for 900EUR shipped worldwide.

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Re: uprated viscous cupplings

Postby underscore » Sun Apr 08, 2018 5:23 am

st185-sainz wrote:no, it is possible to change the visco without taking out the engine. If I remember correctly, the only difficulty was to get out the long shaft which goes through the unit, but finally everything worked fine! I took us around 4hrs to change it (with proper tools...)


Has anyone got any details on how to do this without removing the transmission? Any specialty tools needed? Even just where to start from would be a big help, I can find it in a parts diagram but that doesn't really show where it lives in the grand scheme of things.
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Re: uprated viscous cupplings

Postby alltracman78 » Mon Apr 09, 2018 1:33 am

You'll have to remove the transfer case, that's where the VC is.
You might be able to remove just 2/3 of the transfer case, leaving the bell shaped piece that attaches directly to the transmission.
Or you might have to remove the whole transfer case. It's been so long since I've tore one apart I can't remember specifics.

I'm assuming the long shaft he referenced is the one that usually stays with the transmission when you separate the transfer case and transmission.
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Re: uprated viscous cupplings

Postby underscore » Mon Apr 09, 2018 4:04 am

Looking at the shop manual it should be able to come out with just the right side axle and right cover of the transfer case assembly taken off but I can't be sure because the manual seems to skip some steps.
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Re: uprated viscous cupplings

Postby MWP » Fri Jun 08, 2018 6:50 am

st185-sainz wrote:Would have one in stock ready for shipping. Setting 350Nm@50RPM


What CST rating fluid are you using?
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