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.

Playz Large V8 Engine Model Kit Build Your Own Mini

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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RM792

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Sold byAmazon MalaysiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚙️ Ignite your inner engineer with the mini V8 that runs and teaches!

HANDS ON STEM LEARNING - Enhance spatial reasoning, mechanical skills, and problem-solving through an engaging DIY build.
PERFECT GIFT FOR ALL AGES - Ideal for adults and kids 8+, inspiring creativity and curiosity in STEM fields.
PORTABLE BATTERY POWERED - Runs on 3 AA batteries (not included) for hours of indoor educational entertainment.
INTERACTIVE MECHANICAL DESIGN - Tinker with cranks, pulleys, belts, and exhaust valves for a fully functional model.
AUTHENTIC V 8 ENGINE EXPERIENCE - Build and operate a realistic 8-cylinder mini engine with moving pistons and engine sounds.

The Playz Large V8 Engine Model Kit is a hands-on STEM toy designed for ages 8 and up, featuring a fully functional miniature 8-cylinder engine. Powered by 3 AA batteries, it offers an authentic mechanical experience with moving pistons, engine sounds, and interactive parts. This educational kit sharpens critical thinking, spatial reasoning, and mechanical skills, making it a perfect gift for curious minds eager to build and learn.

Specifications

ASIN	B07QCQNKG7
Age Range Description	Kid
Best Sellers Rank	#21,193 in Toys & Games ( See Top 100 in Toys & Games ) #201 in Educational Science Kits
Brand Name	Playz
Color	Multicolor
Customer Reviews	4.4 4.4 out of 5 stars (4,976)
Educational Objective	STEM, Spatial Reasoning, Problem Solving Skills, Mechanical Engineering Knowledge
Indoor Outdoor Usage	Indoor
Item Highlight	for Adults and Kids 8+,Working V8 Engine Building Blocks set DIY STEM kit, Visbile Real Mini Engine Build Kit that Works
Item Weight	1.8 kg
Manufacturer	Playz
Manufacturer Part Number	v8engine
Manufacturer recommended age	12 - 12 years
Material Type	Plastic
Number of Batteries	3 AA batteries required.
Number of Packs	1
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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