Glowing Exhaust Manifolds
Hello, I've read a lot of posts here over the past 4 months and so I thought I'd chime in for some possible RVer insight. I drive a 34' Winnebago Elante year 1992 with a 7.4L Chevy. Five months ago I ...
Forum Discussion
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Make sure fuel pressure remains up on hard pulls.
One other thing to check. Make sure that the gasoline that's used is not premium. Higher octane fuel burns slower to prevent detonation in high compression engines. But in the lower compression engines, especially those used in severe truck service, the high octane is detrimental and causes higher exhaust gas temps because it is still burning during, or shortly before, the exhaust stroke.
Some folks, even mechanics, think they are giving their engine a treat by using high octane. They just don't know how engines work and follow the usual old wives tales without thinking it through. The worst thing one might do is use aviation fuel that has such a high octane that it will damage ordinary automotive engines in short order. Premium pump gas can cause a similar function to a lesser degree. High compression aircraft engines are made to run at low rpm which affords plenty of time for a long complete burn, as opposed to automotive engines that often cycle at higher rpm and require a quick burn.
Wes
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Make sure fuel pressure remains up on hard pulls.
One other thing to check. Make sure that the gasoline that's used is not premium. Higher octane fuel burns slower to prevent detonation in high compression engines. But in the lower compression engines, especially those used in severe truck service, the high octane is detrimental and causes higher exhaust gas temps because it is still burning during, or shortly before, the exhaust stroke.
Some folks, even mechanics, think they are giving their engine a treat by using high octane. They just don't know how engines work and follow the usual old wives tales without thinking it through. The worst thing one might do is use aviation fuel that has such a high octane that it will damage ordinary automotive engines in short order. Premium pump gas can cause a similar function to a lesser degree. High compression aircraft engines are made to run at low rpm which affords plenty of time for a long complete burn, as opposed to automotive engines that often cycle at higher rpm and require a quick burn.
Wes
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