A little PB Blaster on the remaining oil pressure sender connecting wire and off it came.
Got the sender off with the Arnnworx thin head 24 mm wrench. Then came the OPRV. I have the old version (see below). It appears to be in good condition.
Next the fun part. I tried to configure the socket shown a couple posts back but my 1/2 to 3/8 adapter was to wide to fit between the header and oil cooler. This was the time consuming part, trying to find something that would fit. Finally came up with an adjustable head socket with a 3/8 to 1/4 adapter to 1/4 extension with a 13 mm socket. Was just long and strong enough to loosen the top bolts (see below).
Cooler came off easily. Thick O ring remained in the engine case and came out with a thin angled awl. Gasket also remained on block, the awl removed it easily. Just got under a loose corner and the whole gasket popped off. Only issue, could not find the metal spacer or the plastic o ring that attach to the actual cooler. Checked the block and didn't see them. Will double check.
Next up, clean up and new seals. Then the challenge of getting it back on!
