Why are the cam lobes all wrong in the directions? I mean on the ome bank, the exhaust and intake valves all open at the same time.

I couldn't figure that out either. I don't find it listed anywhere why. I ended up swapping around the cam lobes to match the other side. I appears to be operating correct with way it functions & the spark plug firing. It should have been noted someplace why the cam shaft was different on that side. The only thing I can figure is maybe they are trying to show the way 4 valves per cylinder operate (even though there are only 2).

What are the dimensions when built?

Height 8.5” Depth 8” Length 12”

What kind of tools are needed for assembly?

Generally all you will need is a small precision screwdriver. They send one in the package,however if you a set of precision stew drivers you're good to go.

Anyone know how to reach the vendor (Playz website just sends you to Amazon) I have a defective motor.

If you click on the product you ordered from Amazon you can choose actions and one is to message the actual product store and then you can write a message and Amazon passes it on. I just had to do that for a damaged product return.

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Playz V8 Combustion Engine Model Kit that Runs - Build Your Own STEM Mini V8 Model Engine Kit for Adults & Kids Age 12+, Visible V8 Mini Engine Kit that Works for Adult w/ 270 STEM Parts

Product ID: 136009626

👀Transparent body reveals engine action

🔋Battery-powered with 3x AA

⚙️270 precision STEM parts

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HK$923

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Sold byAmazon Hong KongDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚙️ Ignite your inner engineer with the Playz V8 – where STEM meets thrill!

BUILD YOUR OWN MINI V 8 ENGINE - Hands-on STEM project with 270 detailed parts for immersive learning and fun.
WATCH IT RUN LIKE THE REAL DEAL - See pistons, belts, and fans in motion with authentic engine sounds for a captivating experience.
PERFECT GIFT FOR STEM ENTHUSIASTS - Ideal for adults and kids 12+, inspiring curiosity and bonding over a rewarding build.
BOOST CRITICAL THINKING MOTOR SKILLS - Challenge your logic and creativity while assembling a working combustion engine model.
TRANSPARENT DESIGN FOR FULL VISIBILITY - Observe every moving part in action through the clear engine casing—education meets entertainment.

The Playz V8 Combustion Engine Model Kit is a battery-powered, hands-on STEM kit featuring 270 plastic parts that assemble into a fully functional miniature V8 engine. Designed for ages 12 and up, it offers a transparent casing to observe realistic piston and belt movements accompanied by engine sounds, making it an engaging educational tool for developing mechanical skills, critical thinking, and spatial reasoning.

Specifications

ASIN	B07QCQNKG7
Age Range Description	Kid
Best Sellers Rank	#19,479 in Toys & Games ( See Top 100 in Toys & Games ) #155 in Educational Science Kits
Brand Name	Playz
Color	Multicolor
Customer Reviews	4.4 4.4 out of 5 stars (4,940)
Educational Objective	STEM, Spatial Reasoning, Problem Solving Skills, Mechanical Engineering Knowledge
Is Assembly Required	Yes
Item Weight	1.8 Kilograms
Manufacturer	Playz
Manufacturer Maximum Age (MONTHS)	144
Manufacturer Minimum Age (MONTHS)	144.00
Manufacturer Part Number	v8engine
Material Type	Plastic
Number of Batteries	3 AA batteries required.
Number of Players	1
Operation Mode	Manual
Power Source	battery powered
Set Name	V8 Engine
Size	small or miniature
Supported Battery Types	Alkaline
Theme	Vehicle
UPC	850007659028

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