Too late! The previous owner already had the pump removed when I bought the truck. Man, I wish he had left it alone!!! All he said was it died so he assumed it was the pump. I really couldn't even run any tests. Reading in Chilton manual. Astatic timing,dynamic timing, injection timing. Looks rather intimidating or am I making it harder than it is? I know enuogh about diesels to know that timing is critical. I don't want to mess anything up. Any advice would a blessing!!