Onan MJA Series Service Manual page 54

5.2
HiNt'1'1UN D Y:::;
T.~
M
7. 1'lount .the breaker arms on their pivots and place the control spring
end between the end of the terminal stud and the square metal wash­
er. 'Then tighten the primary terminals.
8. Align the contacts so they make contact near the center. To do this,
bend the stationary contact bracket not the breaker arm.
9. After aligning the points, check the tension of the breaker spring
with a spring scale booked on the arm at the contact and held at
right angles to the contact surfaces (Fig 3.3. J). Tension should be
17 to 200z.If not,adjust it by loosening the screw holding the end
of the contact spring and installing spacing washers or sliding the
end of the spring in or out.
10. Rotate the drive shaft to obtain maximum breake.r gap and set the
f
gap for. 020 in. (Fig 3.3. I).
E. Installation, Distributor. - If you know the position of the distribu­
tor when removed and the crankshaft wasn't moved after distributor re­
moval, the distributor can be installed inexactly the same pOSition.
After installing, perform steps 3, 4,5, and 6 below.
But
if
the exact position of both distributor body and rotor weren't re ­
corded or the crankshaft was rotated, follow the complete procedure
below.
1. Remove the spark plug from :Ii 1
cylinder. Place a finger over
the spark plug hole and rotate
the. flyw hee I clockwise until the
cylinde,r builds up pressure.
Continue rotating until the TC
mark of the flywheel aligns with
the timing pointer.
NTSETNO.!
RES CYLINDERS
lAND 4)
2. While holding the distributor in
the position shown in Fig 3.3.
M
and the points in an open posi­
tion, push the distributor into
its mounting hole.
It
may be
FIG 3.3. M - DISTRIBUTOR
necessary to rotate the distrib ­
INSTALLA TION POSITION
utor slightly to position and
mesh the distributor and cam ­
shaft gears.
3. Install tbe distributor clamp screw.
4. Connect the coil leads to the breaker point cover adapter. See
Sect 3. S.H.