The studs break because the manifold expands and contracts with exhaust temps.Replace the manifold;make sure the stud holes are larger than the studs by almost 2 sizes-3/8 stud=1/2 hole.Buy Genuine CAT parts!All new studs,gaskets and manifold sections.DON"T weld them together=They HAVE to slip in their expansion joints. Next problem to consider is why is exhaust breaking the studs=is the manifold getting too hot for a reason?Such as over fueling/lean air mix,hard pulls lugging the engine,not downshifting,too rapid shut down with out allowing the engine to idle and cool down.Is there too much exhaust back pressure=possible clogged muffler? Or was it just the manifold being welded at the slip expansion joints and the stud holes too small? Mark
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Today's Featured Article - Tuning Up Your Tractor: The Battery - by Curtis Von Fange. Buried somewhere beneath the sheetmetal, under the gas tank, or stuffed in front of the radiator is the battery. This elusive and neglected component of the tractor is the hardest to get to when it is dead and in need of a jump. But usually, the storage battery is a storehouse of electrical energy waiting to be released a the flick of a switch. A few maintenance tips and periodic cleaning will keep it charged for the duration of its life span. The battery is made up of a number of lead bas
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