somewhat. They can get fairly rusty and not so easy to see. Hit it with a wire brush and they should come up.
I don't know what that groove is. I've been told its something to do with an electronic analyzer system that got a pickup dropped into the hole on the pointer assembly and it did some sort of magic. Doesn't mean anything to us mere mortals that own a timing light though, unfortunately.
That is actually one thing I'll give to GM, their timing marks are easier to read. It uses a big groove on the balancer and a "sawtooth" thing on the side of the engine to indicate timing degrees. Even on a pretty rusty one you can count the notches and know where you're at.
I don't know what that groove is. I've been told its something to do with an electronic analyzer system that got a pickup dropped into the hole on the pointer assembly and it did some sort of magic. Doesn't mean anything to us mere mortals that own a timing light though, unfortunately.
That is actually one thing I'll give to GM, their timing marks are easier to read. It uses a big groove on the balancer and a "sawtooth" thing on the side of the engine to indicate timing degrees. Even on a pretty rusty one you can count the notches and know where you're at.
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