Help please !

[SCANIAMAN]

Can I drive my 2.4tdci home without a viscous fan on driving at night

[metalworker0]

under five miler yes ..
over --i would say no

you could tape it up so that it drives as solid fan ...then it would be low revs to stop tape coming off

all the best.mark

[T350camper]

I tend to agree with metalworker.
When you say 'without viscous fan'. Do you mean the coupling has failed and the fan is barely turning, or do you mean it's removed altogether?

I understand your rationale for driving at night when it's cooler, and in theory when you're moving at over 'say' 40mph there should be enough air passing through the radiator to suffice. Problem is when you climb a hill or the load on the engine increases. If the engine temp starts to rise, you may not have a place to pull over and switch off in time. You'll need to keep your eyes glues to the gauge.

If the fan is still there but just barely spinning because the coupling has failed. I once got home in this situation by tearing a strip of cloth and winding it tight between the viscous coupling and the water pump pulley. Then used a strong cable tie to clamp it tight. The fan ran at full speed. But there is the risk that it comes loose and all that cloth etc gets caught up in moving parts