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Caulking the Firebox Seam
Corry caulks the seam between the new firebox and the mud ring.

Caulking the Firebox Seam

Saturday, December 11, 2010 by MC

In riveted steel boiler construction, caulking is the process of rendering a seam watertight by driving a thick, blunt chisel-like tool into the plating adjacent to the seam. This has the effect of displacing the metal into a close fit with the adjoining piece. We use a pneumatic hammer to caulk the boiler seams. It is a very noisy and tiring process.

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Astoria Railroad Preservation Association
P.O. Box 541
446 W. Marine Dr.
Astoria, Oregon 97103
(503) 325-5323

An Educational Non-Profit Corporation
Dedicated to Promoting Public Awareness of Railroad History
Through the Preservation and Operation of Vintage Railway Equipment.

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