I am currently in the process of removing my cylinder head for gasket replacement and am trying to remove the timing chain guide rail. I want to try the bolt and washer technique but am weary of breaking the bolt off in the head of my 91' 300E. I did alot of searching and found a rail pin puller guide. I would like to use it on my engine but am unsure of what it presses against and dont want to break the chain guide. Anyone ever worked with a guide rail pin puller who know someone who has worked with one and did okay with it? Your imput would be much appreciated?

Thanks in advance.