Swapping to Thermal viscous fan from standard

[deppmobile]

Planning to swap for better cooling. Is it a different water pump or does the fan mounting flange come off? Lots of head scratching.....

Thanks!

[Pete]

Pump i sthe same to the best of my knowledge, check as Viscous fans come in different lengths so you may get clearance issues with the Radiator.

[deppmobile]

It looks like the viscous clutch screws onto the snout of the pump, rather than bolts on?

Haven't bought one yet, so can't compare - and don't want to until I know the fitting and can then decide the depth

[Pete]

Later fans like fitted to the 4.7's screw on, the "old School" stuff is still 4 bolts...

[Blue]

The correct type will look like this...

It's normally only A body applications that are really tight and require the shortest hub. About 3/4" from the rad core to the nearest part of the hub is as close as you want to go. I know Dusty on here has a new one for sale that might suit you.

Details here that might help,
https://www.manciniracing.com/vifanpa1.html

[morgan]

#offtopic - but is that a wonky photo or a wonky fan ? I cant quite align my head to it

[Dave999]

no they are like that

dunno why but they are


presume it creates some pulsing or turbulence that is considered useful

or it will reduce noise. I bet the pulses caused by the offset blades cancel out the pulses caused by the normal blades making it quieter

somefink like that

[Dave999]

remember the big long screws for you standard fan will need to be swapped for very short versions to get that viscous fandango onto the pump.


Dave

[Blue]

Yes the fan blades used to be assimetrical like that, the ones they supply now have a regular pattern.

[deppmobile]

Cheers Peeps! Really useful.

Mind now at rest

[deppmobile]

Cheers Peeps! Really useful.

Mind now at rest