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SGF SEAT GRINDER
HELPFUL HINTS
A. PRELIMINARY
1. Be sure to remove the carbon from the valve seats, the ports, and be sure to clean the
valve stem guides.
2. It is good practice to pass the stem of the arbor through an oily cloth both before
and after use. DO NOT SQUIRT OIL IN THE VALVE GUIDE.
3. Care should be taken on some aluminum heads. Forcing the arbor to a very tight fit may
distort the guide. Valve seats ground under these conditions may not end up being
concentric. (Check seats for looseness).
4. Use an arbor that will extend approximately 2-3/4" above the valve seat when properly
set in the guide. Using an arbor that does not extend above the valve seat is likely to
allow the inner key of the grinder unit to continually disengage and engage. This will
break the key and cause premature wear in the sleeve of the guide unit as well as cause
considerable difficulty in grinding accurate valve seats.
B. DRESSING THE WHEEL
1. Feed the diamond to the wheel to take a very light cut; then move it across the wheel
face until the wheel is entirely trued up. (Never jam the diamond into the wheel nor the
wheel against the diamond).
2. Dress the wheel only after the wheel face becomes "worn" or "loaded" by
contact with the seat.
C. GRINDING (USE A TAPPING MOTION WHEN GRINDING TO KEEP THE WHEEL
CLEAN)
1. Before starting the motor, LOWER THE UNIT CAREFULLY ON THE ARBOR UNTIL
THE WHEEL ALMOST CONTACTS THE SEAT.
2. The motor should be held directly in line with the grinder unit, so as to exert a minimum
of side pressure against the arbor.
D. TIGHT WHEEL
1. If the grinder wheel should stick on the grinder unit, it can usually be removed by
gripping the body with the wood block provided, clamped lightly in a vise and unscrewing
the wheel by hand. If stuck too tightly to be unscrewed by hand, it can always be
loosened by using the strap-type wrench furnished.
2. CAUTION: Never grip either the grinding unit or grinding wheel directly in a vise. The
body of the grinding unit: could easily be distorted by doing so or the wheel very likely
broken.
KW Products Inc. 800-553-5953
12.
500 57
th
Street, Marion, IA 52302 USA
Copyright 2004 All Rights Reserved
Equipment specifications, options and accessories subject to change without