Now im putting the pieces together , why your having a hard time ,chain dosent pin at 45 due to being stretched and the exhaust cam at drivers side needs to be held so it dosent spin, which is done by pinning . they make a tool to hold the crank , but ive never needed it, and the pin tool can be substituted with drill bits, I usually recommend the timing chain whenits over 6 degrees of stretch usually reached at 130k miles or more, my own 94 wagon has 220 k miles and no rattles, but I can feel the lag a t low speeds and a top end pull that dosent stop, you can try leaving it at 40 if that's the lowest number any less and sounds risky