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L&L addendum - Homework calculations....



In message <970114234052_1623622738@emout10.mail.aol.com> QSHIPQ@aol.com writes:

> I might argue that what you have is an alignment problem....  If you buy a
> set of euro 5 3/4 rounds or quad rectangles, or 7 inch rounds, there is no
> left and right, it's the same part number, and they have an identical beam
> pattern (45% is for example, it could be 30 it could be 50, but they are the
> same right to left)....  You can adjust the angle with the mounting of the
> bezel.....  I have only done this with euro conversions, tho I would doubt
> that the euro stocks vary....   Certainly if they do, another argument for
> doing quads in my book.....

I have long suspected that you don't really know what you're talking
about, and the above confirms it.  Take a look at the parts microfiche.

My lights are 856 941 029A (left side) and 856 941 030A (right side).

The rounds and quad rectangle of which you speak are, comparatively,
crap and are generally so accepted to be amongst UK club members.  I
have the ur-quattro quads on my 85 GT and they're just as you describe.
Left and right _are_ interchangeable.

With my lights, sitting on low beam facing a wall, if the horizontal
cutoffs are level then the high section to the left (RHD - along the
roadside) starts further to the left on the right-hand light and rises
at a much shallower angle.  It also doesn't have as much light in it.
The beam patterns from left and right, as they hit the wall, are _not_
identical.

The LHD part numbers are 855 941 029B and 855 941 030B.

--
 Phil Payne

 (phil@sievers.com, despite what the bounces say.  If I don't
  reply, your message is probably still stuck on a Demon punt.)

 Phone: +44 385302803  Fax: +44 1536723021  CIS: 100012,1660