Thanks Doug,
Jim
--Previous Message--
: Jim, as far as I know, the cam has no
: keyway. The crank sprocket has a
: keyway but the cam sprocket is handled
: differently. There are two tapped
: holes and a boss on the cam. The cam
: sprocket has a center hole and 4
: clearance holes for 5/16" bolts.
: It is my understanding that changing
: which two sprocket holes you use shifts
: the timing by 1/4 of a sprocket tooth.
: Further to that, I read somewhere that
: flipping the cam sprocket front to back
: shifts the timing by 1/2 of a tooth.
:
: If I have understood this wrong, please
: someone correct me.
:
: Doug L.
:
:
: --Previous Message--
: I never though to ask this:
:
: Is Ted's S2 cam keyed properly to the
: stock Cam gear? I'm not looking to
: race, so splitting hairs for that last
: 1000th of an HP isn't something I was
: intending to put on the ole' to do
: list.
:
: Now you guys have me sweating
: cam-timing before I even put the new
: "mains" in! (More nightmares
: - lol).
:
: Same philosophy was going to apply to
: the push rods. Although I might get
: slightly longer rods from Ted to make
: up for the grind, I'm hoping he'll tell
: me to just take up the slack with the
: set screw and be done with it. I'm
: certainly not planning to use any
: exotic metal(s) in the push rods.
: (Nuts! - More nightmares!)
:
: LUV this stuff,
:
: Jim M
:
:
:
: --Previous Message--
: I have reached the point during the GT6
: engine rebuild where I need to set the
: cam timing. I have new TR6 duplex
: pulleys and chain so I have no
: dots/marks/scribe lines to work with.
: Let me describe what I have done and
: please tell me if it is right. This is
: the abridged version.
:
: I found true TDC and set my degree
: wheel to zero. I turned the crank
: forward in the normal direction of
: rotation until I reached 110 degrees,
: the LCA for the S2 cam I have. Then I
: turned the cam by hand until I found
: the max lift on tappet #2 (intake for
: cylinder 1) and fit the timing chain
: and camshaft sprocket. To check this I
: turned the engine in reverse PAST TDC,
: then advanced towards 110 degrees and
: confirmed I still had max lift on
: tappet 2 at that point.
:
: Please let me know if I am doing this
: right. I am used to dealing with
: marked pulleys and it has been almost a
: decade since I degreed a cam.
:
: Thanks,
: Doug L.
:
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