Proper Shifting to Reduce Engine Temperature
I have had my RV for 12 years and I think I learned something new. From the very first month I had the RV I experienced overheating when traveling in temps over 100 degrees outside. I have a CAT C...
Forum Discussion
Those of us who have some trucking experience in our backgrounds drove when pyrometers were prevalent. Measuring your exhaust temperature was almost a neccesity to keep from cracking a piston or exhaust manifold in the early days of turbocharging OTR diesels.
I don't recall the exact temps suggested but they were different depending on the probe placement, pre or post turbo. Somewhere in the dark recesses of my mind I think it was 1200 degrees pre turbo and 800 degrees post turbo, but I can't swear that is correct anymore.
The key here is that if your EGT was too high you downshifted a gear and backed off on the throttle to keep the EGT in an acceptable range. Using our coolant temps to guide us is just a less accurate way of doing the same thing.
Bottom line, if you experience temps that make you uncomfortable while climbing a grade downshift and reduce throttle input to bring the temps back down.
I don't recall the exact temps suggested but they were different depending on the probe placement, pre or post turbo. Somewhere in the dark recesses of my mind I think it was 1200 degrees pre turbo and 800 degrees post turbo, but I can't swear that is correct anymore.
The key here is that if your EGT was too high you downshifted a gear and backed off on the throttle to keep the EGT in an acceptable range. Using our coolant temps to guide us is just a less accurate way of doing the same thing.
Bottom line, if you experience temps that make you uncomfortable while climbing a grade downshift and reduce throttle input to bring the temps back down.
