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Hey guys, I have a question for you. I have a 2007 Mazdaspeed 3 that had a motor that pistons hit the valves. This is what I have done. First of all I purchased a motor from a salvage yard gen2, put it in and in less tha 300kms piston 1 suffered a cracked piston. So down 3k on a engine. Still...

I got all the valve springs seated and detents in place. The "Lisle 36200 Valve Keeper Remover and Installer" worked amazing. I actually would suggest getting the dual Lisle 36050 kit if the smaller one is smaller then the 36200 as the removal tool is almost too big and can score the bucket...

Valve lapping is important to do when you are building your motor if it is higher miles. This will allow you to get a nice tight seal to the valve seats which is important to compression. Spent like 4+ hours lapping the valves. It took forever but I wanted this to be done right and I did not...