Electra V8-350 5.7L DSL (1983)
Lifter / Lash Adjuster: All Technical Service Bulletins
Diesel Engine - Low Oil Pressure
Model Year
1983
Bulletin No.
83-197
File in Group
60
Number
47
Date
Oct. '83
SUBJECT:
LOW OIL PRESSURE
MODELS AFFECTED:
5.7L (V-8) AND 4.3L (V-6) DIESEL ENGINES
Low oil pressure on a diesel engine can be caused by valve lifter clearance due to wear. The wear may occur in the upper end of the bore although the
lifter
usually wears more than the bore. To determine if wear has occurred measure the upper end of the lifter in two spots, where it contacts the bore, parallel,
with the roller and 90~ to the roller. Refer to illustration. Wear of .005 to .008 inches is enough to cause low oil pressure and the lifter should be
replaced.
Measure the lifter bore in the block. Wear should not exceed .003 inches. If it is necessary to replace the lifters, stone the sharp edges on the bearing
shoulder area of the new lifters as shown in illustration, before installation in the lifter bore.
