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I'm told that 188's have a tendency to throw the #3 rod when they finally go. Otherwise it's a pretty good little engine. I'm rebuilding mine at the moment. The engine "kit" comes with new pistons, sleeves, rings, wrist pins, ALL the gaskets including a head gasket and rod bearings. You will have to pull your oil pan first and determine if the crank is okay and if it is, what con rod bearing size you need. Did your engine hold good oil pressure when idleing hot? If not you should consider pulling the engine and putting in new main bearings. You will also need to pull the head and see what diamenter sleeves you have (there were two sizes). I'd also recommend that you not assume that this is the original engine that came with the machine. For example my 450 is a 1968 model but the engine obviously came out of a backhoe, probably an early 70's model. Nothing wrong with that as its done all the time, but you can't always assume you will have an engine made in 1972. I had a broken top compression ring in the #2 cylinder and that was causing lots of blowby. I was lucky enough to do the rebuild and find the crank and everything else in excellent condition. This allows me to use an "in-frame" kit that rebuilds everything except that the main bearings are not replaced. I had good hot oil pressure and so I'm not concerned about that. As engines go the 188 Diesel has no surprises. As a matter of fact its more simple than a gas burner in my opinion as there is no ignition system timing to worry about. The engine is a standard inline 4 cylinder with overhead valves and pushrods. Valve clearance is adjusted by screws on the rocker arms just like most older cars. Best of luck and let us know if you have any questions. John
1968 Case 450
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