Part 5 - Pistons; Axtell and Dytch Vintage pistons
When you flip the piston over, you can see how different the pin bosses look and how the “heat line” is different. In this case, the dark brown is limited to the center of the crown and becomes progressively lighter as we move down towards the oil ring. However, unlike the stock piston, it is clear high temperature oil isn’t just escaping – it is traveling down the skirt and cooling the whole thing. Good. Take a look at the oil holes . . . notice how they are drilled.
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IMG_1810.jpg
IMG_1812.jpg
When you flip the piston over, you can see how different the pin bosses look and how the “heat line” is different. In this case, the dark brown is limited to the center of the crown and becomes progressively lighter as we move down towards the oil ring. However, unlike the stock piston, it is clear high temperature oil isn’t just escaping – it is traveling down the skirt and cooling the whole thing. Good. Take a look at the oil holes . . . notice how they are drilled.
IMG_1802.jpg
IMG_1808.jpg
IMG_1809.jpg
IMG_1810.jpg
IMG_1812.jpg
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