Add something special to your collection of model figurines with this unique Smithsonian Motor Works model engine. Rather than just being a model, this is a real working engine that you build yourself. The set includes everything you need....more
This Smithsonian activity set lets you build a real working battery powered, four-cylinder model engine. The learning accessory features real lights and sounds as it lets you see how the pistons fire with the correct timing.
Watch the belts and fan turn
Includes, over 100 parts that screw together easily, and detailed instructions
Requires two (2) AA batteries (not included)
Recommended for ages 8 years and up
Includes 35-inch long x 23-inch wide poster
Build a working model of a 4-cylinder engine
Valves rock, spark plugs fire and pistons drive crankshaft
The engine is fun to assemble when you have all the parts needed. My recommendation is verify that all parts are included before starting the project. Maybe not such a good idea to get this toy from Overstock? Then send one email to NSI. So, far NSI International has sent us the first part and we have requested the second at the time of writing this review. My ten year old is able to assemble the engine with just a little help. There are a couple of mistakes in the instructions. On step 18, follow the sequence A,B,C,D,E,F,G and H for the camshaft but don't try to match the orientation of the parts to the drawing. Instead, A & B, C & D, E & F and G & H will point in opposite directions. Also, on step #19, ignore the drawing showing that the camshaft parts have changed sequence in that step. This was confusing to my son.
Camshaft pieces were missing. I had all 8, but instead of all being different I had a mismatch of 4 of the same, 2 of the same ect. Many pieces already had cracks out of the box and while installing screws usually cracked and not from over tightening, like half way in they would crack. Pieces were badly molded and featured a lot of parts needing deburring before they could be assembled, Instruction illustrations were very poor and incomplete leading to confusion on many steps and having to look at all the other steps to see proper orientation. Several times these were even inconsistent. My daughter got frustrated with this and rightfully so. I'm a mechanic and I think it's garbage. Buy the visable V8 for another $10 it is a lot better made. Still waiting to hear about the missing cam pieces, probably be thrown away....beware.
Please tell us about the quality of the product. brittle plastic is cracked out of the box, half the screws cracked while installing at maybe 1/2 way in. Some parts had bad flashing left
Was the product free of any manufacturer defects? Missing parts
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