Mud-club

Vehicle & Technical => Discovery => Topic started by: daveyravey on November 14, 2007, 19:51:04

Title: Quick Question
Post by: daveyravey on November 14, 2007, 19:51:04

What size of spanner fits the viscous fan hub on a 3.9 v8 ?[/b]

Title: Quick Question
Post by: skip on November 14, 2007, 19:59:31

I did mine a while ago, IIRC it was a 32mm but it wasn't a perfect fit but plenty good enough.

I big hammer helps to shock it off without having to try and lockup the pulleys, just keep beating it round and round. can't remember if it was LH or RH thread though.

A tip for refitting is to tighten up by hand then mark the stub and nut with tipex, so when you tighten it back up it's possible to see exactly how much. Mine went about 3/16" and has been fine ever since

Title: Quick Question
Post by: daveyravey on November 14, 2007, 20:09:15

Cheers Skip, you're a gent  :D

Exactly the same way i tighten pinion nuts   :wink:

Title: Quick Question
Post by: The Electrician on November 14, 2007, 23:12:24

thread goes opposite way to normal if that helps and yes it is a 32mm.
good luck

Title: Quick Question
Post by: disco-v8 on November 15, 2007, 01:07:46

Quote from: "The Electrician"

thread goes opposite way to normal if that helps and yes it is a 32mm.
good luck

have you got your engine in the wrong way????

as mine tightens up the normal way to any other nut/bolt type thread

Title: Quick Question
Post by: Range Rover Blues on November 15, 2007, 13:55:43

No, some are RH thread nowadays, like my LSE as the water pump runs off the back of the serpentine belt and therefore opposite to all the other pulleys.  Typically though Viscous hubs are LH thread.