Hello,

I need to source Viscous coupling pulley retaining tool 303-1241 according to workshop manual.
Could any one help? There is no such thing on the web.

I got mine from here (assuming that's what you are after):

https://www.powerfuluk.com/catalogsearch/result?q=viscous

I just used a thin chisel between the bolt heads, but you could probably use a piece of 15mm wide steel. Key thing is at least 3 or 4 hands to hold the pulley "blocker" and the viscous fan tool + hammer.
NB make sure you don't hit a fan blade - they break or split! Paul,
2001 Discovery 2 TD5, 211,000 miles & climbing
2006 FFRR TDV8 Vogue 145,000 miles & climbing
Member of Midland (Land) Rover Owners Club, www.mroc.co.uk

In order to remove Cooling Fan the Work Shop manual for TDV8 2006-2010 says that I need Special Tools.

1] Viscous coupling spanner 303-1142
2] Viscous coupling pulley retaining tool 303-1241

Powerful uk replied that they don't stock this item and so it may be worth checking on the Range Rover forums for alternative stockists in this case. I think they just sell 303 -1143 alternative which is for Disco 3 a 4.

The Viscous coupling spanner 303-1142 is available on ebay/amazon no issues there.
But Viscous coupling pulley retaining tool 303-1241 is i bit a mystery for me. Is it just some kind of wrench? Any alternative, please?

Last edited by leusfx on 15th Aug 2019 10:53pm. Edited 1 time in total

The Viscous coupling pulley retaining tool 303-1241 is just a device to hold the pulley stationary while you use the fan nut spanner to loosen the big 36mm nut.
All it does is locate on 2 or 3 of the pulley retaining bolt heads - for you to then hold the tool or abut it against something that won't move.

Click image to enlarge

I always use a "heel bar" , pointed end on the nut and a good whack with a 4lb hammer , keep the bar as vertical as you can and 3/4 the way across the nut (to the right hand side when looking down at it standing in front of the vehicle), will give you a better turning moment of torque, normally shocks them off with no problem , remember its a left hand thread !

thats mine
works fine RR 2005 4.4 petrol
Any spelling mistakes are the fault of spellchecker
Previous MG J2, CITROEN light 15 x 2 gone unfortunately
Present MERC 180e, RANGE ROVER L322, JAGUAR XJS, MERC 280SE, MG F, JAGUAR S-Type 6v 2003, jaguar s-type 8v 2004, Ford Cougar

and mine
 2012 TDV8 Black Edition
2000 Disco. TD5
1975 series III

That's nice collection of tools. Thank you all very much to make it clear!
Just found this on my phone:


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i never undid the four bolts RR 2005 4.4 petrol
Any spelling mistakes are the fault of spellchecker
Previous MG J2, CITROEN light 15 x 2 gone unfortunately
Present MERC 180e, RANGE ROVER L322, JAGUAR XJS, MERC 280SE, MG F, JAGUAR S-Type 6v 2003, jaguar s-type 8v 2004, Ford Cougar

remove 4 bolts only if you intend to change fluid inside viscous coupling. 2012 TDV8 Black Edition
2000 Disco. TD5
1975 series III

Eventually, I ordered Part No. LRT146-2PC from powerfuluk.com (Retaining tool and the 36mm Spanner) and it worked like a charm. The tool is also compatible with FFRR TDV8 engine and fits on the pump. Thanks everyone.