These seals wear from constant expansion and contraction during the heat cycles of the engine. If you compare a new seal to an old one you'll see the ridges on the base are worn completely smooth on the old one....no amount of hammering will do much good for long and MAY even pull the pushrod tube from the cylinder....a pain to replace....and involves an angry wife wondering what the f&%k a cylinder is doing baking in her oven and stinking up her kitchen.
Besides...it's bad karma to hammer on an airhead.
Go ahead and change em...takes a 1/2 hr per side..and thats if you're slow.
This was all fun banter until 4ad posted a pic of a rapist/murderer.- GP640
4ad screwed with this post 02-26-2011 at 02:41 PM