More sealant to scrape off and new sealant needs cure time
Have to drain and open up the cooling system
Have to open up the fuel system
When you have a single defective lifter that won’t spin after breakin, it’s nice to not have to do extra work. you can remove and replace a lifter by simply removing the rockers and using a magnet to pull the lifter out.
Although he may have to pull the intake regardless, unless he can walk the lifter to the back of the engine and pull through the distributors hole. Cushioned mechanical fingers work well in this case.
