GENERAL SYSTEM DIAGNOSTICS
SERVICE MANUAL NUMBER 23
NOTE: The entire test should not be repeated more than once without running the engine
to prevent flooding. (This includes any retest on faulty injectors.)
Test Example
b
c
300ms
a
d
a - Injector
b - 1st Reading (Initial Pressure)
c - Fuel Pressure Gauge
d - 2nd Reading (Pressure After Drop)
EXAMPLE
Cylin-
der
1
2
3
4
5
6
7
8
1st.
38 PSI
38 PSI
38 PSI
38 PSI
38 PSI
38 PSI
38 PSI
38 PSI
Reading
(262 kPa) (262 kPa) (262 kPa) (262 kPa) (262 kPa) (262 kPa) (262 kPa) (262 kPa)
2nd
19 PSI 17 PSI 21 PSI 19 PSI 19 PSI 19 PSI 19 PSI 19 PSI
Reading
(131 kPa) (117 kPa) (145 kPa) (131 kPa) (131 kPa) (131 kPa) (131 kPa) (131 kPa)
19 PSI 21 PSI 17 PSI 19 PSI 19 PSI 19 PSI 19 PSI 19 PSI
Amount
of Drop
(131 kPa) (145 kPa) (117 kPa) (131 kPa) (131 kPa) (131 kPa) (131 kPa) (131 kPa)
Rich
(Too
Much
Fuel
Lean
(Too
Little
Fuel
OK
OK
OK
OK
OK
OK
Drop)
Drop)
Index
Page 5E-50
90-861326--1 MARCH 1999
| Categories | Mercury MerCruiser Manuals |
|---|---|
| Tags | Mercury MerCruiser 454 CID, Mercury MerCruiser 502 CID |
| Model Year | 1998, 1999, 2000, 2001 |
| Download File |
|
| Document File Type | |
| Copyright | Attribution Non-commercial |
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Marine readers have rated Mercury MerCruiser GM V8 GM V8 454 CID 7.4L and 502 cid 8.2L Marine Engines Service Manual Number 23 5.0 out of 5.0 based on 1 product reviews. Just need the manual. Wrote review. Can't technically review what I haven't seen yet...