i can't remember either, but you can always tell whether the engine rotates clockwise or counter clockwise by looking at the fan. we all know that the fan pulls air through the radiator, so it can only spin one direction......so the direction of the blade pitches will tell the story.
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Graham,
Good to see that you are making progress.
As Tom has described, when you line up the cam timing, the #4 piston is at the "firing" position (which is what causes MORE foul-ups than thing else about the Opel CIH engine!). Then, when you install the distributor, you need to turn the crank 360 degrees (which really doesn't matter WHICH direction, since you end up in the same place) to get #1 in firing position. Here's a photos of the cam timing, and remember that the #4 cylinder is in firing position at this time.
Good to see that you are making progress.
As Tom has described, when you line up the cam timing, the #4 piston is at the "firing" position (which is what causes MORE foul-ups than thing else about the Opel CIH engine!). Then, when you install the distributor, you need to turn the crank 360 degrees (which really doesn't matter WHICH direction, since you end up in the same place) to get #1 in firing position. Here's a photos of the cam timing, and remember that the #4 cylinder is in firing position at this time.
Attachments
And here is a photo of the distributor installation, AFTER the crank has been rotated 360 degrees, putting #1 cylinder at the firing position. Note the angle of the oil pump drive slot. And that you have to start the distributor slightly more clockwise to allow it to line up as the drive gear is engaged
Attachments
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