Reproduction UC Track availability?

[Lynn Eades]

The lead plug is easy. I cant really remember which calibre, but some of the guys use cast lead bullets, which are easy to make(.45 cal?).
Re retention with a split pin, it worked in service, and I concur with Alex, that infact there is virtually nill end load on the pin in normal use.
A thought, that sits in the back of my mind is that anyone wanting repo track, would want it to look original.
The track pins I have, have different heads, some appear to be made like a rivet (The pin being held, and a head formed by hitting it) some look like they are rolled( the head appears to be formed by rolling the material back on its self, and you can see in under the head from the pin end, around the pin circumference)
I believe you are headed in the right direction, with your welded head option.
If your run of English/Canadian track is a success, do you intend to do the Aust. pattern track?
I have just looked at an Australian manual, and it states the track links are made of malleable iron.
The track displacement is 5/8" not 3/8" as I previously stated.

[ron]

Hi Lyn. 38 wad cutter bullets are perfect if cast in pure lead, regards Ron

[Lynn Eades]

I should have known you'd be the man.

[cantankrs]

Mostly off-topic story. But related to imported foundry work. My Dad used to work for a firm down in Perth that in the late 60's imported single cylinder stationary diesel engines similar to a Lister design that were made in India. They proved to be OK engines, certainly the mk2 with the better crank/bearings was very good. My Dad actually bought one 20 years ago second hand cos he admired them for their price. They were beautifully finished on the outside, but still had casting sand in places inside! So the workshop fellas in Perth had to strip every one and clean them out thoroughly and reassemble them before sale.

Regards

Alex

[Perry Kitson]

I had a couple of Canadian UC track pins tested for composition a number of years ago, here is what I found,

Ni 2.31%
Mn 1.53%
Cr .31%
Fe 95.06%

case hardened 56-58 Rc.

Hope this helps.

Perry

[cantankrs]

Hi Kerry,

Is there something wrong with my adding cos I get a 0.79% shortfall from your figures. Can you check?

Regards

Alex

[Lynn Eades]

My guess is there is a bit of carbon in there somewhere....as well as a bit of mud from the Thames, and a bit of sheepshit