| Timing Gear [message #350929] |
Wed, 25 December 2019 11:52  |
uprooted
Messages: 72
Registered: December 2019
Location: Hilliard, OH
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Merry Christmas everyone! Hope everyone is enjoying time with family / friends / whomever this season. Since the GMC is now part of our family, I've been spending plenty of time with it this week too. While the fuel pump is out I tried to get in and see whether the timing gears have been upgraded from the nylon cam gear. The borescope I have does not have the best picture quality so the best I could do is go in with a mirror. Still it's difficult to get enough light and your eye lined up well enough to get a good look. The best way to do it was put my phone camera with flash on up to the hole. The chain appears to be OEM type, but I know there are aftermarket sets with original style chain but with all-metal cam gear. I Got a pretty good shot of the gear teeth, and I THINK they are metal but I guess I've never seen one of the nylon tipped gears in person. I would much appreciate the expert eyes of those of you that have seen these nylon gears before. The video is here: https://youtu.be/Gqvk4Y05R4Q . Thanks!
Corey P /
Hilliard, OH /
1974 Glacier 26' /
3.70 FD /
ION Wheels
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