MTFCA Forum

Period Hastings Taper Gage in box ( box not super great) Absolute Guarantee will replace or repair without charge at any time gage fails to
function is printed on the box. was $100 now $80 Now $65+ the ride. Now $50 + the ride six0two-7six9-0two57 Craig.

post again

What does it measure?

Taper in cylinder

John is correct it measures cylinder tapper ( not bore size ) Made by >-Hastings->piston ring Co. Although the instructions tell how to use it with
a outside micrometer for bore size. A period tool that does the same as the Starrett 452-B that I have used for decades. But Starrett 452-B's now
sell used for $250 & new for over $700.
Craig

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Pardon my ignorance, but why/how would there be a taper in the cylinders???

Hi Jennifer,
There is more combustion pressure & less oil at the top of the cylinder so the rings tend to cause more wear @ the top.
The rings don't travel all the way down the cylinder so there is also less wear @ the bottom Of the cylinder. Excessive
taper will cause the rings to flex & break or not make good contact with the cylinder leading to compression loss.
Rotational force can cause the cylinder to wear out of round which can be detected with the same gage. It is almost impossible
to detect a few thousands of an inch with the naked eye & if you could you would need to measure it accurately.
Craig.

Still for sale

Even lower price