PS - DON"T lock it up so it always runs - not designed for it.
So called experts did that with my Jaguar to address overheating (??) so I had a steel fan running at 5,000 rpm which was just dangerous - and could hear the car coming miles away!!! If I revved at the lights I could suck pedestrians in. The fan could almost pull the car along!!
I went through the receipts and found one for "locked up fan coupling to address overheating". Great - so they ruined it.
I replaced it with a working one - then addressed the cracked cylinder liner that WAS causing the problem and water loss (silly me!).
Car yard did it with mates Ford - HUGE fan on that - ridiculous - they put two screws through it.
Anyway, Stag's idle slowly, so the fan doesn't do much at idle as they can't spin it any faster (unlike fans that run off pulleys and can increase the speed by pulley size) - AND fan has to slip so it doesn't spin too fast at high RPM.
As I said - very much a compromise.
I have a 16 inch Davies Craig fan. Get one that draws around 20 amps. Many around are big but only about 7 amps - they won't do the job.
Was the second thing I stuck on my Stag in 1993 when I bought it (full scale mech temp gauge was the first.)
You'll never have a problem idling again.
So called experts did that with my Jaguar to address overheating (??) so I had a steel fan running at 5,000 rpm which was just dangerous - and could hear the car coming miles away!!! If I revved at the lights I could suck pedestrians in. The fan could almost pull the car along!!
I went through the receipts and found one for "locked up fan coupling to address overheating". Great - so they ruined it.
I replaced it with a working one - then addressed the cracked cylinder liner that WAS causing the problem and water loss (silly me!).
Car yard did it with mates Ford - HUGE fan on that - ridiculous - they put two screws through it.
Anyway, Stag's idle slowly, so the fan doesn't do much at idle as they can't spin it any faster (unlike fans that run off pulleys and can increase the speed by pulley size) - AND fan has to slip so it doesn't spin too fast at high RPM.
As I said - very much a compromise.
I have a 16 inch Davies Craig fan. Get one that draws around 20 amps. Many around are big but only about 7 amps - they won't do the job.
Was the second thing I stuck on my Stag in 1993 when I bought it (full scale mech temp gauge was the first.)
You'll never have a problem idling again.