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As mentioned, there should be a hole in the cam gear sprayer. If the engine is really gunky (which obviously implies massive neglect in its past) it can be obscured, it's rather small. But it's unlikely that it's not there, or blocked, unless the gears are destroyed.
The kingpin is held in place by some bolts through the upright perpendicular to it - the bolts slide through holes and into grooves on the kingpin. The caps top and bottom are merely there for grease/dust control. Odd that someone would weld them, unless they were having trouble making them stay put.
The kingpins are one of the few parts I haven't yet had apart on my PV. Although I did spend a few hours last fall working on them - they'd stopped taking grease quite a while ago. Plus the disc brake swap blocks access to the grease ports as well, to opportunities to grease them got rarer (if you have to take the wheel off and unbolt the caliper, you tend to not do it as often). This went on long enough that it became rather urgent that I grease them somehow, or just order off a rebuild kit (which isn't cheap). So I took off the calipers, took off the 50 year old grease fittings, and cleaned out all the hardened old goop behind them that I could, cleaned it out with brake cleaner as well as possible (leaving it all assembled), and put the grease fittings back on. And they all took grease, finally.
This was after I'd replaced 3 of the 6 sets (both sides) of metal bushings on the A-arms. I didn't want to have to buy any more pricey front end bits for a while. At least they're still available.
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'63 PV544 rat rod, '93 Classic #1141 245 (now w/16V turbo)
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