Where is the best place to find a mantle spigot for a R1 flat top Tilley burner, took the burner apart to clean, insertion thread was so worn it left half of it in the head!! It does not seem to be listed in the usual places that I know, which is not many!
I don't know who that '8366Michael' is selling parts on eBay but his stuff usually seems a bit over-priced to me...
Being the son of a toolmaker who has a small engineering business,perhaps I should make the part myself. I have a good one to copy. Does anybody know the threads that Tilley used, as fine brass threads are difficult to identify and Imperial sizes are not much used these days.
Threads in general are a complete mystery to me but I've heard that Tilley often used their own threads for many applications. It could well be that this is one of those so may be non-standard. Time to get out the thread gauges, maybe...
Yeah good man Gav make the part yourself ! If you don't have any thread gauges, PT me and I'll measure one for you
Just checked my R1 spigot threads against a Whitworth gauge, and 26g is the closest. I say closest, as whilst the pitches of the gauge fit the threads, they do not go in full depth. Never having cut threads this may or may not be an issue. They are parallel too, I suspect the female threads in the burner head may be tapered, but not necessarily.
Maybe it's the difference between BSB ( 55 degrees ) and BSC ( 60 degrees ) both being 26 TPI around that dia
Hello Gavin, I have a few unused old stock R-1 spigots, so if you want one then PT., me with your address details. Jeff.
I have come to the conclusion that the thread is 26 tpi, as stated in a previous reply, and is a type that is used mainly for brass fittings in the steam and electrical industries. A quick search on ebay entering 1/2" 26 tpi proves very informative and useful "ebay can be helpful" I have started down the line of making the spigot so I will continue,whilst talking to Jeff over his very kind offer. Anybody know which type of Brass tilley used!!!! There are at least 3, hard, medium, and soft. I now intend to identify the other thread sizes that Tilley use. "I am becoming my signature"
Gav ! I appreciate your engineering prowess But, I really don't think it matters whether you make the spigot from 114 or 121 or any other variation of brass in between ! Brass alloys are made for particular reasons/applications, none of which (IMHO) enter into the realms of tilley spares (not as a one off anyway) ! Make your part from whatever brass stock you have available and I'm sure you'll get good service and longevity Only my opinion please keep us posted 8)
Further research on Brass for making a spigot for my R1 heater has led me in many directions, most of them interesting, if not relevant. The subject of threads used on Brass is as complicated as you wish to make it!! One article I came across may worry some of the more dedicated fettlers/house proud among us!The article is http://www.azom.com/article.aspx?ArticleID=4387#1 The most interesting part is about 2/3 of the way through, and may be a small factor in the dreaded stress fracture problem!!! I can see in my mind a knowledgeable man stroking his beard in interested satisfaction. Hope this is of use to you, and to those of us who are less than house proud on the Brass front, a good justification for our ways.
