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5.9 Cummins Block #53

Casting

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Crack Repair with

CASTMASTER pins

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Drilling the first series of holes

A drill spacing

jig is used toachieve proper

spacing of the

drilled holes. Aright angle drill

is used to drill

under the edgewhere the crack

is.

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First series of holes are drilled

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First series of holes are spotfaced

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First series of holes are threaded

with a special CASTMASTER tap

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Installing the stitching pins,

heads twist off when tight enough

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First series of pins are installed

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Second series of holes

The second series ofholes are drilled,

spotfaced and tapped

at every other

remaining space

overlapping into the

pins on both sides.

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Third series of holes

After the secondseries of pins are

installed, The third

series of holes aredrilled, spotfaced and

tapped.

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Final series of pins are installed

After the final series

of pins are installedcreating a solid

continuous row of

overlapping stitching

pins, the tops of thepins are ground close

to the surface

completing the repair.

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Stress free and pressure tight

The finished repair

is pressure tested toassure tat there are

no leaks. If a leak is

found, another pin iseasily installed to

seal the leak.