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The Catalogue has been designed around the part numbering
system used on the master list of Ivan Tighe Engineering.
The part numbers given to profiles identify them to the
masters used to grind the shapes on the camshaft grinding
machines. This allows a the different grinds to be easily
recognised and the customer to be able to determine the
exact specification in the years to come.
Model
Prefix.
On Each page of the Profile list is a' Model
Prefix', this is provided to set up the first part of the
part number. This Prefix may include the Make, Model or
Capacity of the Engine.
E.G.
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CS
3SGE
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This is the Model Prefix for the Toyota
3SGE.
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Profile
or Grind.
The Second part of the Part Number is the Grind
or Profile Number of the Camshaft. This is added to the end
of Model Prefix, and gives the camshaft a simply 1 line part
Number.
E.G.
899C 77º 53º 55º 75º
310º 310º
#899C (The Profile or grind Number.)
CS 3SGE 899C
Combining
Profiles.
If the camshafts that you require are a combination
of two grind, this is also catered for by using the
combination of both of the part numbers. When this is to be
used the profile number becomes a bit more complicated.
The Exhaust profile is
first, then the Inlet profile
and then the Lobe Centre
line.
E.G.
CS 3S0E 899C / 919C - 102º
This is an 899C on the Exhaust and a 919C on the Inlet
with 102º lobe separation.
Engine
Position.
The position of the camshafts in the engine can also
be specified if required, this is done by placing a' A ' for
Advance and a ' R' and the Number of degrees that you
require it to be moved.
E.G.
CS 3SGE 899C / 919C - 102º - A4º
This would give the same camshafts as above except
that the new lobe centre lines will be 106º on the
Exhaust and 98º on the Inlet.
Reground
or New.
When the part number of the camshaft is determined,
the camshaft can be also a New or Reground camshaft if there
is no prefix on the part Number it is assumed to be a New
Camshaft. To change the camshaft to a regrind, simply ad the
letters R.E. to the front of the Part number.
E.G.
RE CS 3SGE 899C / 919C - 102º - A4º
This camshaft now becomes a Reground pair of camshafts,
for a Toyota 3SGE, with an 899C on the Exhaust and the 919C
on the inlet with 106º and 98º lobe centre
lines.
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