1970 Hot Wheels Tune-Up Tower: Dyno-Meter Head Unit

Now that we’ve got the main motor running, it’s time to start looking at the treadmill apparatus. First up is the Dyno-Meter head unit.

TUTHU1

This unit contains the blue needles that mark out the Wheel Speed and Wheel Drift on the Dyno-Meter panel. It also consists of the orange arms that hold the car on the treadmill.

What’s the most common problem with these needles and arms? Some ham fisted kid back in the early 70’s decided to see how far he could bend them.

TUTHU2

The Wheel Drift needle is bent forward.

The nearest arm is bent up and in.

The nearest orange arm is bent up and in.

Here’s my video on how to fix a wonky Dyno-Meter head unit.

So there you have it. The 1970 Hot Wheels Tune-Up Tower Dyno-Meter head unit fixed and ready to go.

Up next, how to get the treadmill running so we can keep Hot Wheels cars still fast. Still fun.

Tune-Up Tower box art - front. Close-up. Courtesy eBay.

Tune-Up Tower box art – front. Close-up. Courtesy eBay.

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