There is no repairing of cracked or porous liners ...They are simply pushed out of the block from underneath..I use a solid wood rod and a bottle jack to push liners out of block..Stay back a little or you'll get a bath..Does the engine oil get nasty gray looking after a while ??If so that's a dead giveaway of coolant getting into the crankcase..It's an anomoly that happens in all diesel engines with wet liners or parent bore blocks..Parent bore blocks need to be bored and sleeved to repair them..Wet liner blocks are easy fixes..The liners are sealed into the block with o-rings at the bottom and head gasket at the top..The porosity problem has been around for years..It boils down to hard water..PH level is too low..After rebuild , I'd use a coolant conditioner as marketed by NAPA or others..It works...
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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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