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Hi all, I have a 2007 Mazdaspeed 3, I have owned it since 2017 and to make a long story short I have put more money into the car than miles :sweatsmile: I found this forum long ago but never joined and now I finally decided to. Thanks!

Hi, I am going to be attempting to replace my valve seals without pulling the head off. I will be using a leak-down tester to supply pressure to the cylinder to keep the valves in place. I am wondering if anyone has done this before and if they have any tips and tricks before. Mainly I am...