Damaged splines of VC housing by TDI engines?
Meanwhile it’s common, that the splines of the VC housing are a weak point and often worn out. Effects of worn splines are not serious in the first place (except […]
T3 VC
Viscous Coupling T3 Syncro
TDI-engine needs TDI-Visco
You may wonder why we started to offer a special VC-setup for stronger engines (TDI, Subaru…). What looks like a sophisticated marketing strategy was actually born out of necessity: We […]
Increasing of the T3 Viscous Coupling deposit by 2020
Since the sources for old T3 VCs are slowly drying up, we are forced to raise the deposit price for the T3 VC to € 250 by January, 1st 2020 […]
Is the VC of my T3 Syncro still working after 300.000 km?
Inquiries like this are quite common, since the intended functioning of a viscous coupling often could not be experienced.
Selecting the right gear oil
We are frequently asked which gear oil we recommend for the T3 Syncro. The official VW guideline from the ‘80s speaks of 75W90-GL4 for differential & transmission. But our recommendation […]
Decoupler as gas guzzler
First of all: It’s not our intention to make the decoupler look bad – we also fitted one, and think it’s a nice gadget – but we prefer to drive […]
After a VC fails closed, it then fails open.
We suspected this issue for a long time, but now we found evidence to support our theory. But let’s tell the story from the beginning. A customer brought us his […]
“Oil-sucking”- a design failure of the T3 VC
The other day I could examine another tiny part about the “oil-sucking” issue. My understanding is, that it’s a design failure, where the extrem high thermal expansion of the silicon […]
Why does an old viscous coupling stink so miserably?
Anybody who already opened an old VC knows what I mean – the offensive smell of the deep black silicone fluid. But why does it stink so badly?
Testing of a “baking oven VC” #2
After having tested a so called baking oven VC months ago, I decided to test another one due to verification resasons. I got the baking oven VC from a german […]