Please read instructions before using.
Instructions:
SET UP:
1. Remove Mandrel retaining nut.
Figure 1.
2. Turn knurled adjustment knob
counter clockwise approximately
¹⁄•" (10 threads). This removes
any preload allowing free mandrel
installation. See Figures below.
Figure 2A
3. Select mandrel by diameter of guide ID needed. Insert
mandrel into driver head, applying an inward pressure,
while rotating until drive slots of mandrel drop over drive
pins Figure 3A & 3B. Reinstall nut finger-tight. When
tightened properly, an air gap of .020" to .030" will
remain from nut to driver body. Figure 4.
Figure 3A
Figure 3B
TO HONE:
1. Test set up by turning knurled adjusting knob clockwise.
A slight resistance will be encountered when adjuster
contacts the mandrel expander. Now, as the knob is
turned the mandrel will expand. To release, turn knob
counter clockwise.
2. There are four witness marks on
the drive body and one on the
knured adjuster. Fig. 5. Turning
the knob one mark, advances or
retracts mandrel by approximately
.001". Feed rate depends on
hardness of guide material. Honing
soft guides removes material faster
than hardened guides.
© Goodson Tools & Supplies
Figure 1
Figure 2B
Figure 4
Figure 5
HF-KIT
Hyper Finish Master Kit
Instructions
3. Before starting the honing process, the cylinder head
must be set in a secure holder or head stands. Check
for operating clearance. Hone and hone drive should be
clear of any obstacles including rocker studs or stands,
and combustion chamber walls. There will be minimal
movement created by the honing process as we use
the hone with very light pressure. The abrasive is VERY
aggressive.
4. Make sure an adequate flow of diamond honing oil
(DHO-10 or DHO-50) is flowing through the valve guide
at all times. An oil squirt can will not work. The amount
of oil supplied this way is simply not enough to flush
the guide I.D. clean due to the amount of metal being
removed; one reason we get tapered guide bores.
5. Lower the hone mandrel into the guide bore, and
expand the abrasive until guide wall contact is made.
Roll the hone clockwise with fingers, no power yet. The
hone should turn freely with no spots that hang up. A
slight out of round is not a problem as you can hone this
out as part of the honing process.
6. The actual honing process requires a very light pressure
on the abrasive. After rotating the unit by hand and
establishing there are no obstructions, begin honing
slowly (low RPM, 40 – 60). Advance feed one mark at a
time only.
7. Once the bore diameter is achieved, stop, turn the feed
knob back one notch and remove the hone. Measure
the guide I.D. If more material has to be removed,
simply reinstall the hone into the guide and expand it to
the mark it was set at before removal and advance the
knob to the needed amount. Remember each mark is
approximately .001".
8. Just in case the mandrel becomes lodged in the guide
(should not happen if above instructions have been
followed) removal is accomplished by turning the
adjuster counter clockwise 2 to 3 turns, then pull up to
remove. If the unit is still lodged, bump the end of the
mandrel (opposite drive head). The abrasive will loosen
automatically in this direction.
See back for:
Cleaning and Maintenance and Break-In Procedure
January 2017