whiteboyslo
FNG
Pardon my ignorance, but mechanical fan clutches are bit of a 'new' thing to this youngin'. I know the clutch is a purely mechanical device, but are there some general rules of thumb about when the clutch does/should come on?
I ask because I was giving the truck a good workout yesterday and there seemed to be no rhyme or reason as to when it engaged. I was hauling a couple of sport bikes back from a trackday doing about 75 or so with a steady head wind. It was 90 degrees or so outside so I had the AC on. The drive was mostly downhill, but with a few decent uphill grades as well. As expected, the truck ran a bit warmer than usual, but nothing alarmingly high. What was curious, though, is that the fan seemed to engage at all sorts of places. Sometimes the temps would creep up as much as 15 degrees over what she normally idles/cruises at and then the fan would kick in. Sometimes she would barely be 5 degrees over and would engage. The fan itself does an awesome job. Once you hear that roar, the temps drop QUICK. I just wish I knew how to make it engage more consistently.
Mike
I ask because I was giving the truck a good workout yesterday and there seemed to be no rhyme or reason as to when it engaged. I was hauling a couple of sport bikes back from a trackday doing about 75 or so with a steady head wind. It was 90 degrees or so outside so I had the AC on. The drive was mostly downhill, but with a few decent uphill grades as well. As expected, the truck ran a bit warmer than usual, but nothing alarmingly high. What was curious, though, is that the fan seemed to engage at all sorts of places. Sometimes the temps would creep up as much as 15 degrees over what she normally idles/cruises at and then the fan would kick in. Sometimes she would barely be 5 degrees over and would engage. The fan itself does an awesome job. Once you hear that roar, the temps drop QUICK. I just wish I knew how to make it engage more consistently.
Mike