Numbers on Essex rockers

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Numbers on Essex rockers

Post by Diyhell » Thu Sep 24, 2020 10:05 pm

What do the numbers, and the blobs on the side of some rockers, actually mean? They don't seem relevant to the cylinder or valve and some rockers have a blob at the numbered end on one side, some on the other and some on both sides...??

I thought all would be identical but if so why the difference?

Any wisdom appreciated 😀
IMG_20200924_195218198_resize_18.jpg (207.13 KiB) Viewed 152 times

SE6a needing lots of work...

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