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Re: Engine timing belt replacement
the arrows and timing marks could be for two different reasons.
The arrows could be used when aligning the cams together, and installing the cam sprocket.
If the arrows and timing marks don't change in relation to each other, which they don't since the sprocket is a single piece, then the timing marks are the ones to go by when changing the belt, because they are the ones that have the corresponding timing marks behind the sprockets.
If that happens to put the arrows at the vertical position, it happens to do so... the arrows are likely a different indicator, and could be that it aligns the sprockets onto the exhaust cam, and by extension, the intake cam, or some other assembly task, prior to timing belt installation. Or it could be some sort of casting mark for orientation when the sprockets were made.
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"What you plan, and what actually happens ain't exactly ever been similar..."
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1992 Claret SVX. Rescued from certain destruction, and still on the road, where it belongs. Waiting for a bit of a makeover, when I can afford it.
2005 Garnet Red Pearl Legacy GT Limited 5-speed. - The late great Subaru sport touring sedan.
1999 Classic Red Miata, Preferred equipment package 5-speed. Fun, fun, fun, in the Sun, sun, sun.
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