Re: Banger rod knock
Rokkern,
Glad to see you pulled the head !
The Bearing in the rod, second from the bottom has lost nearly all its babbit ( you can still see trace of the diagonal oil-grooves to the left side of the photo). What does the babbit in its matching cap look like ?
The fact that the engine is still standard bore, and seems to have Ford pistons and original style rings suggests that it has NOT been "done before", or at most, valve-grind and re-ring, and bearing adjustment.
The cylinder bore your pictured looks okay at a glance, for an old engine... any ideas how many miles / km are one the car / engine ?
Are there any shims / babbit left in the other rods ? Pics ?
If that is the only rod / bearing that looks like that, I would go looking for a cause of oil-starvation: blocked dipper, hole in dipper-well, blocked oil feed from valve chamber, etc.
If your bearing journals are good, you could replace that worn-out rod/cap, de-glaze the cylinder walls with a hone, clean all the carbon out of the combustion chambers / valves, surface the head, lap the valves and adjust, then put it back together, run-gently to re-seat the rings, then drive it for the rest of the summer...
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