Darjeeling Firehole Dimension in Backhead

[Donald MitchellParticipant @donaldmitchell68891]

[Donald MitchellParticipant @donaldmitchell68891]

Hi Engineers,

 

Raymond has spotted a mistake in the drawing on page 434 of ME issue 4401 concerning the firehole tube dimension.

 

The outside diameter of the firehole ring is correctly shown as 1.3/4″ on the main view of the dummy backhead but on the side view to the right, the drawing shows the outside diameter to be 1.7/16″

 

The 1.7/16″ dimension refers to the inside diameter of the firehole tube.

 

Donald Mitchell
Castle Douglas
Bonnie Scotland

 

 

 

[peter ravenscroftParticipant @peterravenscroft57700]

thanks donald

i’ll amend the drawings by the way is the blower valve spindle 15 7/8 long?

regards

peter

[peter ravenscroftParticipant @peterravenscroft57700]

thanks donald

i’ll amend the drawings by the way is the blower valve spindle 15 7/8 long?

regards

peter

[Donald MitchellParticipant @donaldmitchell68891]

Peter,

 

Yes, the blower valve spindle is 15.7/8″ long, remember it goes all the way to the steam dome.

Donald Mitchell
Castle Douglas
Bonnie Scotland

Edited By Donald Mitchell on 05/04/2011 16:57:01

[Donald MitchellParticipant @donaldmitchell68891]

Peter Ravenscroft

 

Peter, I sent you a personal message from Ray McMahon on the 5th April, …….. have you checked your inbox recently?

 

Donald Mitchell
Castle Douglas
Bonnie Scotland

[Author]

Posts