Posted by Glen on 11/9/2007, 9:42 am, in reply to "Re: Adjustable cam sprockets"
72.153.5.106
Scott no doubt about it, they are slick! What can sometimes be literally hours of futzing around (with an out of spec gear) is reduced to a simple adjustment, it's kinda anticlamactic....
The rotating weight penalty is certainly small & the $$ cost is what it is.
Now... what would be really trick would be a gilmer belt drive setup like the BMC A-series conversions...!
Glen
--Previous Message--
: I did buy one - getting delivered today
: for installation over the weekend.
: I'll let you know how it works out.
: Just seemed to me that it is going to
: be much easier and more precise. We'll
: see.
:
: --Previous Message--
: That's exactly why I have never seen
: these as a must-have, that plus the
: anal compulsions I have about excess
: weight & spending $$.... but...
: I have found that some of the
: replacement gears aren't offset as are
: the originals. At that point the
: options are an adjustable gear... or
: the obvious...
: Glen
: with slightly retarded timing
:
:
: --Previous Message--
: I question the need for one of these:-
: You can't adjust them without
: dismantling the front of the engine -
: unless you make a removeable plate for
: the front of the timing cover.
: Triumph designed the standard sprocket
: to allow fine adjustment, by bolt holes
: offset from the tooth centres. The
: wheel has 42 teeth, so that's one tooth
: per 4.29 degrees of crankshaft turn -
: call it four and a quarter. Then,
: rotating it 90 degrees on the camshaft
: allows it to be changed by half a tooth
: - 2.125 degrees. Then turn it
: back-to-front and bolt back in the same
: position for a quarter tooth change -
: one degree and a fraction far too small
: to be useful.
: What more do you want?
:
: John
:
: --Previous Message--
: Scott I think Ken Gillanders sells
: them.
: If not either he or Ted @ TSI could
: recommend a good source.
: Ken Gillanders
: British Frame & Engine
: somewhere in California
:
: or send an email to the webmaster, we
: recently put one in his 6 cylinder, I
: can't remember the supplier.
: HTH
: Glen
:
: --Previous Message--
: Can anyone recommend a source for an
: adjustable cam sprocket for the GT6 - I
: would think it would fit any Triumph
: equipped with a dual row chain - TR6,
: GT6 or Spit.
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