Quote:
Originally Posted by LoneWolfGal
Just a note about the oil scavenge pump... I don't understand why so many how-to articles and videos insist that preserving the pump's orientation using a marker is a must, when the pump's orientation is cast into the face — 1-3 for bank 1, 4-6 for bank 2. As long as the cast numbers on the left side (inside) correspond to that bank's cylinder numbers, it's impossible to make a mistake and mount it upside down. Here's a photo from Pelican's technical article, although the article makes no mention of the cast numbers (which are hard to see in the photo):
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Good observation, except on bank 2 the 4-6 stamp would still be on the right, but
inside, correct? If that's the case, then both sides are mounted in the same orientation? Yes, the numbers would make a good reference.
But the instructions should be better than "install the same way you took it out" in the event someone was in there before you and reinstalled it upside-down. For example, does the indented rectangle in the inner circle of the outside cover point up on both? If so, that could be another reference. Or, perhaps more importantly given they evidently come apart, the notch on the INSIDE part that meets the cam (shown in smaller picture facing the installer's thumb) would be the best reference.
There's a thread on this:
https://986forum.com/forums/boxster-general-discussions/65231-scavenging-pump-orientation.html
Post #4 by RodJ shows a diagram with 1-3 stamp on the inside (towards crank) and the arrows pointing down for bank 1, and the next post says 4-6 towards the crankshaft for bank 2. (so they are actually both oriented the same way)
Not sure why the Pelican article didn't mention the stamp numbers or arrows. Seems to me it would be simplest to say "the arrows are supposed to point down on both banks"
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