It did just start out as valve cover gasket replacement, but the service manager called and said the cam cap seal was leaking, and would end up costing around 1200 to fix - and if I wanted to proceed. Since I plan on having the 4runner for about five more years I told them just to replace it. It is the first major repair I've had to do to it since owning it. Whether or not it was actually leaking I'll never know.

I will say they admitted fault in reassembly. They gave me a loner and fixed it the next day free of charge, as I would expect.

My only concern is that I drove it for about a week with the cam lash out of spec. I wonder if there is any long-term damage that may occur as a result of this?