Getting ready to install my SBT 657x, the engine beat the factory manual to the door and I'm stuck with only a Clymers.
Can someone explain the static timing procedure. I bought a dial indicator and I'm making the timing shroud that goes over the PTO to align the mark for dynamic testing. Unless other suggestions using sheet metal.
I know that you back off the TDC mark and bring it up to .102" which gives you an advance of 19-21 degrees. According to Clymers you then mark the PTO once the aforementioned distance has been set.
The stator has three slotted holes with about a .250" of an inch of travel. The only problem is that I don't see any reference marks on the stator housing? One would think that there would be some kind of boss there or notch on the stator ring. So do you just set it in the center for an initial setting?
Correct me if I'm wrong does this assembly (stator) consist of three charging coils (3 phase ac) and a pick up coil at the top for generating a voltage to the trigger circuit. When the magneto cup assembly slews around to the top, the magnets attached to it generate a current in the coil which is rectified and triggers the high voltage circuit to fire and arch across the plugs. So the advance and retarding of the ignition timing is controlled by the rotation of the stator ring on the slots. So am I to assume that static timing is merely guessing where the coil should be aligned? Then you proceed with the dynamic timing to verify the setting? The you disassemble the magneto adjust it again then test, repeat and test?
Another question is I wanted to verify the rotary valve timing on a 95 5863-GTX. According to Clymers its 142-152 degrees btdc.SBT installation guide says its 147? Which is correct?
The clearance between the valve and valve cover is .010-.014"? (Clymers)
The torque specification for the rotary valve cover is 17 lbs?
Last question, when intalling the Pto do I put anti seize or locktite?
Thanks
Chumbi
Can someone explain the static timing procedure. I bought a dial indicator and I'm making the timing shroud that goes over the PTO to align the mark for dynamic testing. Unless other suggestions using sheet metal.
I know that you back off the TDC mark and bring it up to .102" which gives you an advance of 19-21 degrees. According to Clymers you then mark the PTO once the aforementioned distance has been set.
The stator has three slotted holes with about a .250" of an inch of travel. The only problem is that I don't see any reference marks on the stator housing? One would think that there would be some kind of boss there or notch on the stator ring. So do you just set it in the center for an initial setting?
Correct me if I'm wrong does this assembly (stator) consist of three charging coils (3 phase ac) and a pick up coil at the top for generating a voltage to the trigger circuit. When the magneto cup assembly slews around to the top, the magnets attached to it generate a current in the coil which is rectified and triggers the high voltage circuit to fire and arch across the plugs. So the advance and retarding of the ignition timing is controlled by the rotation of the stator ring on the slots. So am I to assume that static timing is merely guessing where the coil should be aligned? Then you proceed with the dynamic timing to verify the setting? The you disassemble the magneto adjust it again then test, repeat and test?
Another question is I wanted to verify the rotary valve timing on a 95 5863-GTX. According to Clymers its 142-152 degrees btdc.SBT installation guide says its 147? Which is correct?
The clearance between the valve and valve cover is .010-.014"? (Clymers)
The torque specification for the rotary valve cover is 17 lbs?
Last question, when intalling the Pto do I put anti seize or locktite?
Thanks
Chumbi
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