Quote:
Originally Posted by dataway
Look closely, don't confuse the shadow at the tip of the left arrow with a chamfer ... it's just a shadow. The right arrow points out the actual rod big end chamfer.
It's very obvious when you look at a rod big end.
I added a red line to show the actual cross-section of the rod.
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When installing the pistons from scratch onto the bare Rods, install the Piston groove (arrow forward direction) to rods. Install 1,3,5,7, Piston on to the Non-ID Boss identification side of the large Rod end.
Install 2,4,6,8, on to the ID Indication Boss side of the large Rod end.
Those numbers on the charts are the ones we recorded when the engine was in the vehicle, we will provide new measurements. What we learn these days of where and how to record the correct data.
As pertaining to the drawing, on the bottom left, of the two Pistons. The draftsman should have drawn arrows pointing toward the notches at the top of each piston and denoted that they should face forward, when installing them in an Engine. Details like that keep engine builders abreast of part orientation, you can't have too much information. If we did not expect to see notches on the Pistons one would probably miss the slight difference, especially when reprinting in books is involved.