Rocker oiling or lack of .

I just had a customer with a SBC that was experiencing that problem.
He ended up doing this mod to the lifters(which isn’t all that uncommon).

You can often get by with barely more than a scratch to connect the band to the hole.

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I can see a little oil squeezing by the lifter while priming .

And why no oil to the shafts via the traditional method ?