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SERVICE BULLETIN
DATE:
6/15/79
BULLETIN NUMBER: 20
MODEL:
All engines
SUBJEC~
Connecting Pressure Sensing Devices to Oil Galleries
Oil pressure sensing devices, such as senders and switches, must
never
be connected directly to any oil gallery of
an eng ine.
The
reason is simply that continued engine vibration causes fatigue of the
fittings used to make such a connection.
If these fittings fail, the
engine loses its oil pressure and very quickly seizes.
Such pressure sensing devices must be bulkhead mounted and con-
nected to the oil gallery using an appropr iate grade of lubr icating
oil hose.
Any fittings used to connect the hose to the gallery must
be of steel or malleable iron.
Brass must not be used for this pur-
pose.
PIN:
J. H. WESTERBEKE CORP.
AVON INDUSTRIAL PARK, AVON, MASS. 02322· (617/ 588-7700
CA8LE: WESTCORP, AVON' TELEX: 92-4444
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