Try again. The knock you're hearing when an engine pings is 2 flame fronts colliding. One being set off from a hot spot like a glowing piece of carbon, the other from the spark plug. Octane has no effect on burn time. Clean out the EGR passages of that 460 and she won't ping on 87. Thats one of the benefits of EGR. That old 460 only has an EGR valve position sensor and can't actually tell if there is enough flow.
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Today's Featured Article - Tractor Hydraulics - The Basics - by Curtis Von Fange. Hydraulics was one of the greatest inventions for helping man compound the work he can do. It’s amazing how a little floor jack can lift tons and tons of weight with just the flick of a handle. What’s even more amazing is that all the principals of hydraulic theory can be wrapped up in such a small package. This same package applies to any hydraulic system from the largest bulldozer to the oldest and smallest tractor. This short series will take a look at the basic layout of a simple hydraul
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