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What is this strange old tool? Answered

My dad found this thing where he works and he brought it home to see if I knew what it was. The part that looks like a flat head screwdriver with a t handle can rotate and slide back and forth. The writing on the handle says "monarch - - - - - - phila 34 pa - - - - - - 203

Thanks in advance.

Discussions

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Josehf Murchison

Best Answer 4 years ago

It is a valve lash wrench.

Here is a newer one.

M14597098.jpg
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onrustJosehf Murchison

Answer 4 years ago

The difference between the old and the new is serious cool beans.

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rickharrisJosehf Murchison

Answer 4 years ago

Technically the tappet the screwed bit on the end of the rocker arm resting on the top of the valve stem.