Triac returns to action

Roy · Mon 16 Jan , 2012 18:23 pm

After my Triac has been laid up for about 2 years due to doing up a house, building a garage & many other projects.
I finally got round to using it again this week, so thought I would post up a couple of pix of what I've been making.

These are overhead rockers for a 1930's fully radial 250cc Rudge motorcycle.

From the date on my drawing, you will see that I had intended to do these 4 years ago! Such is life!

Roy · Mon 16 Jan , 2012 18:30 pm

Couple of pix to show how they work!

bradders · Tue 17 Jan , 2012 7:05 am

Nice one Roy, How many Rudge 250s are there out there? What is the material specification?

Tue 17 Jan , 2012 10:55 am

Cool

and thanks for sharing

Roy · Tue 17 Jan , 2012 17:05 pm

bradders wrote:Nice one Roy, How many Rudge 250s are there out there? What is the material specification?

There probably about 300 + 250cc Rudges still about.
Material is EN36B (3 1/4% Nickel chrome, 65 ton) These will now be hardened .040" deep to 65 HRC, then the side bearing faces surface ground & the bores honed.

Cheers, Roy

bradders · Wed 18 Jan , 2012 8:00 am

300 + Rudge 250's, wow. Its good to see that your are supporting these motor cycles with spare parts, and keeping our heritage up and running, good job.

funkstar · Sat 03 Mar , 2012 20:16 pm

Very nice work.
Would be interesting to see how you set this cut up, special fixtures i guess but this is an issue that I always find intriguing and the "old guys at the work shop" never stop to amaze me in their smart ways to make their cut. Perhaps you did take a photo during machining?
How long did each part take and what feed rate did you use?
Sorry for all the questions..

Per

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