shaunsmith
Member
is there anyway of changing the oil in a viscous coupling
what oil?
I think its actaully asilicon gel shaun.
but a good question non th e less. anyone now exactly what it is. Maybe there's a short term fix if someone knows.
it is
snot a good Q - its an old Q.
No there isnt - its been discussed ad nausiam.
do a search.
Northern Irelander
Well-Known Member
I contacted the manufacturers of the silicone fluid, there are two distributors here in the UK.
Haven't priced any yet, but I have a hydragas pump which should displace any of the old fluid. Not sure how I will achieve 84% fill volume lol.
Haven't priced any yet, but I have a hydragas pump which should displace any of the old fluid. Not sure how I will achieve 84% fill volume lol.
Tiz easy.
1) measure volume and weight of liquid removed.
2) fill empty VCU with an inert liquid.
3) empty inert liquid and measure volume.
2&3 shud give 100% fill. 1 shud give minimum fill.
4) measure by volume 84% of 2&3 and refill. Or measure equivalent weight to 1 and refill. Or weigh empty VCU and add fluid until yu get a weight of empty VCU please the weight equivalent of 84% volume.
How do you reseal it?
1) measure volume and weight of liquid removed.
2) fill empty VCU with an inert liquid.
3) empty inert liquid and measure volume.
2&3 shud give 100% fill. 1 shud give minimum fill.
4) measure by volume 84% of 2&3 and refill. Or measure equivalent weight to 1 and refill. Or weigh empty VCU and add fluid until yu get a weight of empty VCU please the weight equivalent of 84% volume.
How do you reseal it?
How thick is the body? Plug it and pein it over? Grub screw? braze a patch over the holes?
jonaf
Active Member
Thread a grease nipple into the hole and fill the unit with silicone using a grease gun.
Dow Corning can supply the fluid: https://www.xiameter.com/en/Pages/LandingPage.aspx
Dow Corning can supply the fluid: https://www.xiameter.com/en/Pages/LandingPage.aspx
Tiz a balanced unit, so that might be a problem. How do yu think brazing is going to affect the liquid, or the balance?
Re: viscous coupling
Thread a grease nipple into the hole and fill the unit with silicone using a grease gun.
Dow Corning can supply the fluid: https://www.xiameter.com/en/Pages/LandingPage.aspx
Maybe it was me, but i couldnt see any VCU fluid.
jonaf
Active Member
The viscous coupling fluid is in the "Transmission" section on this page: Automotive Solutions - Automotive Lubrication - Dow Corning
and if you get it correct we can all save a few bob 
