Issue link: http://www.e-digitaleditions.com/i/536502
July / August 2015 16 It takes a very high quality borescope to complete the process at this point. You need a borescope with a side viewer function (90 degrees) so we can slide the borescope in the tube, then see the sides of the tube in relation to the piston, as well as the groove the clip should sit in. The cheap scopes with the little mirrors you put on the end I don't recommend, the view isn't as sharp, and if the end comes off your scope, it can end up in the motor. Once the tube is confirmed to be correct, insert the wrist pin rod tool and in one smooth and very firm motion, slam the tool into the tube as far as it will go and hold it firmly in. This will push the clip out of the insertion tube, and into the piston. Too slow (or if you slam it in and remove the tool too quickly), and you will create a gap between the tube and the piston, and the clip will fail to insert. While still firmly holding the tube against the piston, remove the rod from the tube and set aside. Now grab your borescope and insert it in the tube and verify your wrist pin clip is inserted properly. It is hard to make out in the picture, but at the bottom of the screen you can see the black edge of the tube (you can slowly spin the tube if you need help verifying which part is the tube, it will give you good relation to the other structures), then the thick silver area is the edge of the piston, and the slight black gap then shiny silver piece is the wrist pin clip sitting properly in the groove. It isn't nearly as easy as I might make it sound ;) Once you have verified the clip is sitting properly, you will repeat for cylinder 5 then 4 in that order. If the wrist pin clip is not seated properly, there are a couple methods that you can use to get it back out of the engine, which is why we are holding the tube firmly against the piston to keep it from falling into the engine. With the tube still holding it in that area, you have a possibility of fishing it back out, but I don't reveal all my secrets ☺ Working our way out to the other two cylinders. (Note Karl says "Working our way" - EDITOR)