Advertisement
4
A new plug can be installed (with J-483 vibration
dampener installer tool handle) from below the
engine with the oil pan removed, or from above by
removing the starter motor; always apply white lead
or sealer to the cup before installation; plug should
be positioned as shown in Figure 2.
MAIN BEARINGS - PAGE 3-16
(6 CYLINDER)
It is recommended that a KMO-500 Oil Leak
Detector be used before disassembling an engine
for repairs, to check the condition of all main,
connecting rod and camshaft bearings and leakage
points due to breaks and cracks in the main oil
header or other internal oil line s. The oil leak
detector is equally valuable in obtaining a final
check on a complete bearing replacement job. To
use the KMO-500 Oil Leak Detector proceed as
follows:
1. Remove the filler plug (H) Figure 3, and fill the
tank with 5 quarts of S.A.E. No. 30 oil.
FIGURE 3
2. Remove the oil sender gauge (manifold side) and
connect the detector hose (I) direct to the oil
sender gauge stand pipe using adapter fittings (G).
3. Connect detector hose (F) to air supply line.
CAUTION: Make sure valves (A) and (E) are
turned to the off position before turning on air
supply.
4. Raise car and remove oil pan as outlined on page
3-14, 480-490 Procedure Manual.
5. Open shut-off valve (A) admitting air into the
detector tank.
6. Adjust pressure reducing valve (B) until air pres-
sure gauge (H) shows 25 pounds pressure.
7. Open shut-off valve (E) admitting oil under 25
pounds pressure to engine oil system an d re-
check gauge pressure. (Recheck pressure from
time to time as the work progresses.)
8. The bearing condition is indicated by drip or
leakage from the ends of the bearings as follows:
A. If this leakage occurs in a steady stream it is
evident that there is some fault in the bear in g -
badly worn so that excessive clearance exists,
lining cracked etc. and that bearing should be
removed and carefully checked.
NOTE: Care must be used to differentiate be-
tween a stream of oil coming from a faulty bear-
ing and a stream existing because of registration
of oil holes (such as spurt holes in connecting
rods for cylinder bore and piston pin lubrication.)
B. If the leakage occurs in drops of such a size and
shape that a time element can scarcely be noted
between drops, that bear in g also is open to
suspicion and should be investigated.
C. If no leakage at all is observed the bearing may
be too tightly fitted or an obstruction in the oil-
way to that bearing may exist, (There must be a
flow of oil).
D. If the leakage amounts to twenty-to one hundred
and fifty drops per minute a satisfactory bearing
is indicated.
Advertisement
