Dinked around today chasing a high rpm mis on my 76 and started getting the itch to pull things all apart on the 72.
Pulled off a bunch of FI stuff and finally pulled the sparkplugs. Wow, looky here when number 2 came out.
I was also able to turn the motor over as its been stuck for awhile.
Also poured the water out of the aircleaner,,,now how does water get inside the aircleaner?
Ok, back to the plug.
Its slightly smashed probably from the dreaded dropped valve seat syndrome and the helicoil came out with it. Always love DPO that use Autolite plugs This head probably has a real nice crack from the valve seat to the plug helping to let the seat fall out.
We'll see when the motor is all apart what the final problem is but I am betting on the above.