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75 psi is plenty for it to run well. A new one will go around 150, but I've had one with 60psi running fine, using no oil. And that one had .017 bore wear with no ill effects running.
Something basic is wrong with timing, carburetion, etc. Whatever it is is so basic as to be idiotic. Once you find it. But finding it can drive you nuts.
Something basic is wrong with timing, carburetion, etc. Whatever it is is so basic as to be idiotic. Once you find it. But finding it can drive you nuts.
I've had several /6s which would knock under load if advanced at 4 degrees or less. Now, these were running 1973 electronic ignition distributors with stock advance which would not match the advance curve of some hearlier models. But I have seen people damage piston pins with more advance. And I have seen rods through the block as well. Not easy to hurt a /6, but it can be done.
No question that 75psi is low compression, but as noted, I seen them running well at less than that. Don't ask me why they'd run well that low, makes no sense to me, but I've seen it.
No question that 75psi is low compression, but as noted, I seen them running well at less than that. Don't ask me why they'd run well that low, makes no sense to me, but I've seen it.
1 - 3 of 24 Posts
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