Hey guys, im sitting here while my truck issitting in the garage with the pump taken apart. I have watched video after video on how to install this spring. They all say that there are 4 allen bolts that hold on the pump top and that these need to be removed in order to access the spring. Where are they. I have located three of them. The two that are visible all of the time and the one behind the pump top. Where is the 4th one....please tell me.

 

2 up front on the corners, one behind the throttle, one behind the pump top.