question for b[r]ent, the "engineer"

jim beam · 2012-07-28T02:21:53+00:00

don't anyone else help him. b[r]ent, here's a real-world engineering question. if you're what you seem to think you are, not what you keep on acting, you should be able to do the following in a few minutes: a certain engine manufacturer has two versions of pretty much the same engine, with a small difference in capacity and differences in cam profile but other features identical. if i want to put the hotter cam from the larger engine into the smaller capacity engine, i need to re-time the cam because there is a slight difference in deck height between the two blocks and thus the cams key positions. if the deck height difference is 1.3mm lower for the smaller capacity motor, all other factors being the same, by how much do i need to adjust the new variable-timing cam gear i'm fitting to be able to compensate? and in what direction? the timing gear is toothed belt and has a diameter of ~114.6mm.

Jul 28, 2012 42 Replies

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jim beam 13 years ago

those are all your own internal fears, retard. they don't exist out in the real world.

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jim beam 13 years ago

you'll be ok b[r]ent. if you stick to checking part numbers on boxes, you'll make it through to next paycheck. then you can go home and not worry about having to interact with humans.

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Nate Nagel 13 years ago

You know what it needs to be. There will be a reference point on the cam, usually but not always the lobe centerline, that needs to be lined up with #1 TDC. That and the recommended cam belt tension is literally all you need to know to make it work. You're going to have to degree the cam anyway, so why worry about whether your starting point is one or two degrees off?

You apparently like making simple things complicated, don't you?

nate

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