Allchin 11/2″

[Bryan CedarParticipant @bryancedar96259]

Having almost completed the refurbishment of an Allchin by W J Hughes, I have only just discovered that what I thought were roundhead rivets turned out to be shoulder bolts in steel threaded 5BA on the ends and fitted with 5BA steel nuts without washers. The bolts appear to be over long, should these be trimmed?

The person who sold me the engine informs me that his club members prefer this method as opposed to copper rivets as it allows dismantling if necessary.

Can members advise if they agree with this method of construction.

I may not steam this engine but wish it to be in steaming order.

[Bryan CedarParticipant @bryancedar96259]

Firebox stay rivets or bolts.

[JasonBModerator @jasonb]

Bolting the hornplates on through the hollow stays is quite common, the stays can either have an internal thread and then the nut acts as a lock nut or be a plain bore with the nut being used to retain the bolt. It won't hurt to trim off the excess.

 

BTW the minnie in my avitar uses bronze studs and nuts to hold the hornplates and the Fowler I'm working on has button head screws into tapped stays with a locknut inside.

 

J

Edited By JasonB on 20/03/2012 13:34:55

[Bryan CedarParticipant @bryancedar96259]

Many thanks Jason, thats reassuring.

Bryan

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