Though there are many parts to an automotive engine taking one apart repairing it and putting it back together is possible. There are some special tools needed and also the specifications for each manufacturer, year, and size, of motor you are working on. For motors to operate correctly the clearances between moving parts must be with in tolerances. That said, the short answer is to reassemble the motor in the the reverse order that it was disassembled in. There are several subsystems that are removed as units. such as the electrical wiring harness, the air intake system, and the exhaust system/s, starter motors, charging systems, and ignition system. each one of these can be extremely complicated requiring many steps or very simple like unplugging a connector. after these systems are removed you are left with the block and head/s. Here again, even unbolting the head/s from the block, to prevent the head from warping, one must follow the pattern established in the engine specifications. While Only very old motors will have the valves mounted in the block so chances are the valves will come out with the head removal. It is usually more cost effective to send the head to a machine shop for service, with the valves intact They can be removed but it takes special tools. after the heads are removed the block with the oil pan, crankshaft, connecting rods, pistons, and oil pump, is the remainder. taking these apart is uncomplicated, but, putting them back together requires the specifications and special tools. With reassembly many times bolts and fasteners must be tightened in the proper sequence and to the correct tightness (torque). These can be found in a good shop manual.
http://www.cpdonline.com/692509.pdf Engine Manual
Not if you know where everything goes on your engine. It's just really time consuming. If you know how to disassemble and reassemble your engine, go for it. Otherwise get a professional.
You need a gunsmith.
Best left to a trained gunsmith.
Purchase a rebuild kit. Take the carb off the engine. Disassemble the carb. Clean the parts with carb cleaner. Reassemble and install then adjust carb (if applicable) while running the engine.
On line auctions.
Assuming this is a bearing knock, remove the engine, disassemble engine, inspect, replace or rebuild worn parts (crankshaft, bearings, etc), reassemble engine, install engine. Or, you can go with a good used engine if you have a reputable salvage yard you can trust.
You can get manuals at the Smith and Wesson website.
Best to ask a gunsmith for help if you don't have a manual
I believe the word "dissembled" would rhyme. "Dissemble" means: "to put on a false appearance : conceal facts, intentions, or feelings under some pretense."
# Slide # Carry # Throw # Tumble # Disassemble, reassemble
Disassemble, inspect, clean, replace/rebuild worn parts, reassemble to manufacturer's specifications.