By taking the cooler off plug one hole on the oil side of the cooler. Then with a plate and a valve stem you can add air as you heat the cooler in a pan of water. You need to heat it to get it to leak. I had an oil cooler that would not leak till it was heated. Just put the container with the water where you can heat it with the torch or some such manner. DO NOT use PLASTIC as the container. Then apply air to see it bubble if it leaks. IF not, then probably the head gasket.
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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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