Delkron Space-N-Time Tool Master Kit - Manual (Page 3)

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gear spacer in relation to the dial indicator reading to achieve an end-play of .003” to
.005”
SETTI G BREATHER GEAR E D PLAY
BREATHER GEAR TIMI G
The recommended breather gear timing in a high performance application is for the
opening event to occur no sooner than 10 degrees BTDC and no later than 10 degrees
ATDC
, with the closing event occurring no sooner than 55 degrees ABDC and no later
than 75 degrees ABDC on the FRO T cylinder.
To check the opening and closing event of the breather gear, install the camshaft,
pinion gear, and breather gear, being sure that all timing marks on the gears are in
alignment. Install the DELKRO Space-N-Time tool with the cam cover gasket to the
crankcase and torque to OEM specifications. Determine TDC of the front cylinder and
install the degree wheel of the DELKRO Space-N-Time tool to the pinion shaft using
the aluminum pinion shaft adapter and ½” allen head bolt and washer supplied with the
tool.
Set the degree wheel to zero at TDC and rotate flywheel assembly counter clockwise
to 10 degrees BTDC, note position of breather gear window, it should be closed. Now
rotate flywheel assembly clockwise to 10degrees ATDC, the breather gear should start to
open between these two areas, make note of the degree that the window starts its opening
event. Continue rotating the flywheel assembly clockwise until 55 degrees ABDC, noting
the position of the breather gear window, it should still be open. Continue rotating the
flywheel assembly clockwise to 75 degrees ABDC, the breather window should start its
closing event between these two areas.
If the opening and closing events of the breather gear do not fall within the specified
areas, then either the window in the breather port of the crankcase will need modification
or the breather gear will need to be modified. The window in the breather port of the