Wow, Found a O-ring at Home Depot on a Hot water faucet replacement part. Probably not Viton but had to put back together so I could drive. I will order a Viton one and have ready for when this one goes. It was an extreme pain in the A$$ to put back together for sure. I had to take the magnet tip off an extendable light and a socket tool to push valve closed enough to put that damn clip back on. Probably harder than replacing my VSS for sure.

 

How is your oil level now? I know with mine, I barely lost any oil afterwards... until a month or two later when my oil lines decided to fail where the rubber meets metal LOL... my rover always keeps me playing detective

 

Thankfully I just replaced both oil cooler lines. Leak free now. Nice to look at the car after sitting and not see it spit up all over the pavement.