2) Many have suggested pulling hard at low RPM's hurts the bottom end. So find a gear you can be in that sweet spot of 2,200-2,700 RPM.
3) Watch your gauges closely, you will know if its time to pull over and cool down.
4) Have your IP timing checked. Get the most out of that engine. Off timing can cause heat issues.
2: no factory tachs in vans at all before 92. I guess IDI vans didn't get E4ODs until 92 or the tach sensor is wired up without a tach gauge. I can't justify buying an aftermarket tach so no way to know the RPMs. I have to have the RPMs up in a lower gear to control EGTs though.
I have to drop down a gear if EGTs go to high, which does the trick, EGTs drop to safer levels (ie 900-1000). Thus far, I've never seen both temps get so bad that I had to stop. The last bit of the worst hill its been to, with a strong head wind, in NM got it down to 20-25 in 1st with EGT around 1000-1000 and water around 220 in a climbing lane, both safe temps still, just incredibly slow.
3: water temp has been perfectly fine. It has a newer thermostat and fan clutch (late 2019). EGT is what I have to watch carefully and let off the throttle or downshift to control. I do watch both carefully though.
4: I just had the timing done around November, so in theory it should be good. It was done in the DFW TX area though, so the elevation at which it was done might make a difference?
My complaint isn't about temperatures, it's about speed. I guess I'm just expecting too much out of the ATS 085 for what it's in. It probably brings the RV to the level of a mostly empty NA pickup.
It's front profile is almost as tall as some semi trucks, but with less aerodynamics.
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