Can you remove the seal with a seal puller or do you have to pull the whole timing cover off?? When i installed the underdrive balencer i did'nt replace the seal as directed by instructions and yes i have a leak.. Lesson learned.. always follow directions!!!
I bought the miller tool's to do mine.Don't think you'll be able to get that tool in there without damaging the crank.It's not in there that tight.Haynes manual say's to use a big screwdriver.Just be careful and take your time if you use the screwdriver.The new seal has rubber seal all around the edge that goes into the housing of the cover.(This give's you an idea how tight the seal is in there.)I did'nt replace mine either and had to replace it.Used an aftermarket seal(victor)and it leaked to.Just replaced it agian with the new design factory seal.Waiting to see if it solve's the problem.Here's a pic of the new seal and old seal and miller install tool.