cheech147 Posted October 7, 2013 Share Posted October 7, 2013 Any mechanics out there familiar with this set up? I understand it was a popular combination years ago. I have a 78 Mack F series with this combination. Question I have, is that the engine has a regular fan setup. I was wondering if it is possible to change it to a clutch fan. Tired of hearing the manual fan whining all the time and need all the horsepower i can get out of it. Quote Link to comment https://www.bigmacktrucks.com/topic/33070-ntc-290-13-speed-in-a-f-series/ Share on other sites More sharing options...
kscarbel Posted October 7, 2013 Share Posted October 7, 2013 Certainly you can upgrade to an on/off fan clutch. Give the folks at Horton a call. Quote Link to comment https://www.bigmacktrucks.com/topic/33070-ntc-290-13-speed-in-a-f-series/#findComment-210703 Share on other sites More sharing options...
b61mack Posted October 8, 2013 Share Posted October 8, 2013 My brother has a 78 F Model that had a 350 Cummins in it, I would say it had the same setup on it except its got a viscos fan clutch. I ran a 67 F-737 that had a 250 Cummins 10 speed roadranger for years it did fine back in the 70s early 80s. Quote Link to comment https://www.bigmacktrucks.com/topic/33070-ntc-290-13-speed-in-a-f-series/#findComment-210710 Share on other sites More sharing options...
theakerstwo Posted October 8, 2013 Share Posted October 8, 2013 Like kscarbel just said,no problem. Quote glenn akers Link to comment https://www.bigmacktrucks.com/topic/33070-ntc-290-13-speed-in-a-f-series/#findComment-210712 Share on other sites More sharing options...
cheech147 Posted October 8, 2013 Author Share Posted October 8, 2013 Thanks guys. The dog was a working truck up until a couple years ago. Going to restore and want to make some changes to it. First thing is I want hear the stack without that whine from the fan. Gets real annoying at higher rpm's. Quote Link to comment https://www.bigmacktrucks.com/topic/33070-ntc-290-13-speed-in-a-f-series/#findComment-210724 Share on other sites More sharing options...
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