Modern engine assemblies are complicated and must be assembled to exact specifications in order to operate
at maximum levels of performance. A few things are required in order to accomplish this.
Special Assembly and Disassembly Tools
Inspection and Measuring Equipment
Shop Manuals
Compressed Air
Cleaning Solvents
Basic Hand Tools
In most cases, if you don't already own this equipment, the cost of purchasing it makes "Do IT Yourself" engine building cost prohibitive to say the least. There are always alternative methods to assemble mechanical devices but an engine
is not the place to cut corners. As in all things in life, there's a right way, and a wrong way.