capo said:

I had all of that - Kenlow 16", two settings X-Eng thermoswitch in bottom hose, warning light and override switch but the temp gauge still fluctuated and got hot enough to switch the fans on in slow stop start traffic. Mind you a single fan may not have been enough but it came with the Landy.
With the viscous it gets to running temp and stays there - within a few degrees - whether I'm cruising, in traffic or belting it along.

Matter of choice really, the viscous v electric fan debate is endless (but LR did fit them as standard for some reason).

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Kev12 said:

Welcome.
As a 94 it'll be a 200 or 300tdi, and most of the year they'll be fine without a fan, the 200tdi more so

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capo said:

Diesels do run cooler than petrol but I'd still have a viscous over an electric fan.

My V8 had an electric fan and proper plumbed in thermostatic switch for the fan and the temp went up down like a whore's knickers as it heated up then fan kicked in and cooled down. I used to drive with one eye on the gauge the whole time.

I replaced it with a viscous fan and shroud and the temp stays at a steady low 80s. I like the concept of constant cooling rather than heating and cooling especially on an aluminium engine. Fitting an electric fan means more relays, switches, heavy duty wiring and possible failures.

I suggest fitting a proper temp gauge either electric or even better capillary and get an actual temperature reading rather than a vague guide. Mine's a VDU electric and I can see when the stat opens!

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flat said:

except it’s ex-military so original fitment is 2.5na, so won’t be tdi unless retrofitted by a civi owner after it was cast from the mod

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Kev12 said:

Well spotted

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RangeRoller dt said:

Does it run? Lol

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Kev12 said:

Welcome.
As a 94 it'll be a 200 or 300tdi, and most of the year they'll be fine without a fan, the 200tdi more so

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Kev12 said:

Agreed, replacing the viscous is a much easier route

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flat said:

tbh they are much better when the NA is binned!

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Kev12 said:

Shamelessly stolen off google
View attachment 237079

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LandGirl Wolf said:

What's NA please?

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Kev12 said:

A viscous fan is constantly self regulating without any electrical input. They do very occasionally fail but are much more reliable than an electrical fan

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LandGirl Wolf said:

Yep it's a 200tdi

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RangeRoller dt said:

I have been told less drag on the engine without the VCU gives slightly better fuel consumption with an electric fan fitted instead.
Not tried it myself but didn’t notice any increase in consumption when I tried that constant lock unit that one time?

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RangeRoller dt said:

I have been told less drag on the engine without the VCU gives slightly better fuel consumption with an electric fan fitted instead.
Not tried it myself but didn’t notice any increase in consumption when I tried that constant lock unit that one time?

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