question about valve cover removal (for lift bolts)
I was going to remove the valve cover on my car to replace the lift bolts, and after checking a toyota techincal service bullitin I noticed they included a sealant which was to be used when reattching valve cover. Is this necessary? are the gaskets on the gts valve covers rubber?
Ive checked other threads where lift bolt is discussed and no one mentions doing this, but I wanted to be sure.