Average Reviews:
(More customer reviews)Please oh please do not buy this item.
My son was interested in engines and I bought this to show him how an engine works. The parts are all listed correctly and the assembled picture looks interesting.
The assembly of the engine is nothing short of maddening. The parts do not line up correctly, they break if you apply even a small amount of pressure to them and the worst thing of all are the screws provided.
They are slightly too large for holes they fit into. The holes are not tapped and the screws were becoming stripped when attempting to screw them in. I tried a smaller screwdriver than the one provided but that did not help. I took out my drill and tried to widen the holes but the cast plastic case cracked.
I eventually got it all together and tried it.....crap. The pistons move up and down in the cylinder but the cams do not move the rocker arms which do not move the valves. I disassembled it all and tried again, spending almost 6 hours massaging the parts, adding glue, ensuring contact is made and using other means of holding parts together, but after all that...the same result. the pistons move up and down but that is all. There is just too much slop in the rest of the parts to actually all move together.
Don't waste your time.
Click Here to see more reviews about: Smithsonian Motor Works
For the child who loves cars and trucks, this comprehensive kit includes everything needed to build a working engine. Using the step-by-step instructions, a young car enthusiast can create a working model engine with four cylinders. The valves rock, spark plugs fire and pistons drive the crankshaft. Set includes more than 100 parts, a custom screwdriver and instructions. Adult supervision recommended. Requires 2 "AA" batteries (not included). Measures 13"L x 4"W x 18"H.
Click here for more information about Smithsonian Motor Works
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