[JMFL36]

Mac VP, the bottom spring retainer is still in place and looks good.

Frank Miller, I was able to inspect the full guide circumference by turning the guide with a needle nose pliers. The retainer groove in the guide looks good with no damage all the way around.

I suspect (hope) that the retainer clip was not completely seated when installed, and worked its way out over time. The motor was rebuilt by a previous owner and has seen little mileage since the rebuild, under 1000 miles.

So my plan is to just replace the clip and not pop the heads. After a couple hundred miles I'll pull the intake again and do another close inspection of that valve assembly.

Ggmac, it would be great if you have a couple spare clips you could send me. Much appreciated.