beatle_bayly
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    • beatle_bayly
      beatle_bayly replied to the thread Fan Hub Service.
      OK, so it's not the fluid viscosity at rest that provides the 'friction' to lock the clutch but rather the "unique non-newtonian shearing characteristic of the silicone fluid." Got it!đź‘Ť But still looks to be quite experimental in determining...
    • beatle_bayly
      beatle_bayly reacted to nissanh's post in the thread Fan Hub Service with Like Like.
      Here is a great video about the fluid action inside the fan clutch.
    • beatle_bayly
      beatle_bayly replied to the thread Fan Hub Service.
      Thanks mate. Two things though: 1. Shouldn't the fluid become more viscous at higher temps (to add resistance within the hub at high coolant temps)? 2. The only reason I'd be replenishing the hub would be if I suspected the fluid was depleted...
    • beatle_bayly
      Does anyone know the correct quantity of silicone fluid required to correctly service a viscous fan hub? Or the method to ensure the level is correct? I've heard: 2 bottles, 3 bottles, lay it flat and fill the reservoir half to the brim, and...
    • beatle_bayly
      DOT5 is silicone based. Dot 5.1, DOT4 and DOT3 are glycol ether products. DOT3 to DOT5.1 are mixable and have higher thermal tolerance the higher the number. DOT5 doesn't mix with water and to use it you really should completely overhaul the...
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