Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: osealy on 13 May 2008, 12:53:24

Title: Removing viscous fan?
Post by: osealy on 13 May 2008, 12:53:24

I'm guessing that I have to lock something into the pulley nuts to undo 32mm Nut between fan & pump. Or am I missing something :(
Then should I expect to have to clout it?

Title: Re: Removing viscous fan?
Post by: Andy B on 13 May 2008, 13:14:36

Quote

I'm guessing that I have to lock something into the pulley nuts to undo 32mm Nut between fan & pump. Or am I missing something :(
Then should I expect to have to clout it?

Never done a TD Omega but on a Senator you put your 32 mm slim spanner onto the nut behind the fan & then used a 8mm? (maybe 10mm?) Allen key on the cap haed in the centre remembering of course that it's a LEFT hand thread.

Title: Re: Removing viscous fan?
Post by: osealy on 13 May 2008, 14:32:00

There is a flat spring clip on the front of the fan. Kinda hard to see, if I prize this off is there a set screw behind.

Title: Re: Removing viscous fan?
Post by: Andy B on 13 May 2008, 15:47:38

Quote

There is a flat spring clip on the front of the fan. Kinda hard to see, if I prize this off is there a set screw behind.

If it's different from a Senator then 'The Boy' is your man  :-?Oooh! An oxymoron! He particularly likes the BMW lump in these cars! ....  ::)

Title: Re: Removing viscous fan?
Post by: MickAP on 13 May 2008, 17:54:06

Quote

Quote

There is a flat spring clip on the front of the fan. Kinda hard to see, if I prize this off is there a set screw behind.

If it's different from a Senator then 'The Boy' is your man  :-?Oooh! An oxymoron! He particularly likes the BMW lump in these cars! ....  ::)

And the viscous fans!!!!

Mick

Title: Re: Removing viscous fan?
Post by: platty on 13 May 2008, 19:31:08

Getting the viscous fan off is a fiddly arsed job, you have got to find a way of stopping it turning. I used a screwdriver positioned against the block and wedged against the fan - took a few attempts to get it right.

You have then got to get in there and give it a good yank clockwise. If you do it without skinning your knuckles or bashing your hand somehwere I will be very impressed!  ;D

Title: Re: Removing viscous fan?
Post by: osealy on 13 May 2008, 21:46:03

I'm still not sure i get it. I have to turn 32m nut on shaft clockwise against pulley or fan?

Title: Re: Removing viscous fan?
Post by: TheBoy on 13 May 2008, 22:02:04

32mm nut needs to be undone clockwise (left hand thread), whilst somehow holding the pump pulley to stop it turning.  Sometimes they come easy, sometimes a right bitch.

Title: Re: Removing viscous fan?
Post by: osealy on 13 May 2008, 23:06:36

So, if i'm getting it right. Wedge the little bolts on the pulley with something & whack the stilson on the 32m nut clockwise.
Running with the heater on full seems to pull it quickly down to 97deg