Any ideas on what this is from??

[Jorlcrin]

My sister left me a box of odd items she'd collected, and I found this ID plate in amongst it.

If I'm reading it right, it's off a 20-cylinder engine, that might have been based at Charters Towers?

Only thing I can imagine running 20 cylinders, is a diesel locomotive engine.

Anyone seen something like this before?

Thoughts or suggestions welcomed.

[GQshayne]

Radial aircraft engine?????

[No1_49er]

Radials usually have an odd number of cylinders.
I may be wrong though?

[Oldbloke]

Radials usually have an odd number of cylinders.
I may be wrong though?

And not that many.

[on_one_wheel]

Possibly a rebuilders info tag.
20 thou over is my guess. .020"

[No1Mk3]

Radials usually have an odd number of cylinders.
I may be wrong though?

And not that many.

Lycoming XR 7755-3, 36 cylinders, but did not go into production due to the end of the war and the onset of jet technology. The most powerful and common was the P&W 4630 Wasp of 28 cylinders. Radials are found in both odd and even from 5 to 28 cylinders.











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[No1Mk3]

Possibly a rebuilders info tag.
20 thou over is my guess. .020"

This, rebore and new pistons and rings .020" over, bottom end not needing work left Std.

[Oldbloke]

Interesting. The radials I've seen only had about a dozen. Learn every day.

[Jorlcrin]

Possibly a rebuilders info tag.
20 thou over is my guess. .020"

This, rebore and new pistons and rings .020" over, bottom end not needing work left Std.

I reckon you gents might be onto something.

I'd wondered why the tag seemed a bit crude for all the other engine plaques I'd seen; if it's only a rebuild tag, that might explain it.

I'll have to quiz my sister as to where it came from.

Thanks for the ideas.

[Wyliecoyote]

2G gives it away as an older Caterpillar engine so it's a rebuild plate for most likely a grader at Charters Towers council or one of many stations that had graders. My guess would be it was done at Wearing's Diesel which did council and a lot of property work as old John was from those districts. That work plate looks very familiar to me. There is one other place it might have been done at but i don't recall the Narge brothers using brass plates. What is odd though, there is no date or job number. Old school machinists put plates on their completed engines, this is old school. The other puzzling bit is the clutch. The two II are unknown to me but could be a factory or workshop code for the pressure plate used where the flywheel was machined below specs and another type of plate needs to used to get the right preload.