Distributor Installation
b. Remove rocker cover and crank engine until
No. 1 intake valve closes, continuing to crank
slowly until pointer lines up with timing mark
on crankshaft pulley.
Engine Not Disturbed
2.
Position distributor to opening in block in normal
installed attitude.
1.
2.
Install new gasket on distributor housing.
Turn rotor approximately 1/8-turn in a counter-
clockwise
scratched on distributor housing.
direction
past
mark
previously
IMPORTANT: Make sure oil pump shaft is en-
gaged in the following. Position (align) oil pump
shaft end to engage bottom of distributor dive
gear prior to inserting distributor if necessary.
3.
Work distributor down into position in engine
block with distributor positioned as noted during
removal.
3.
Position rotor to point toward No. 1 cylinder on
cap (with distributor housing held in installed atti-
tude), then turn rotor counterclockwise approxi-
mately 1/8-turn more and work distributor down
to engage camshaft and oil pump shaft. It may be
necessary to rotate rotor slightly until engage-
ment is felt.
IMPORTANT: It may be necessary to move rotor
slightly to start gear into mesh with camshaft
gear, but rotor should line up with the mark when
distributor is down in place. Distributor shaft
must enter oil pump shaft for complete installa-
tion.
4.
5.
6.
Replace and tighten distributor hold-down bolt
and clamp. Connect distributor ground (–) leads.
! CAUTION
Installcap.Referto“SparkPlugWires”andinstall
wires.
Avoid severe engine damage. Do not attempt to
force distributor into position using hold-down
clamp and bolt.
Plug wiring harness into ignition module on dis-
tributor housing, on distributors so equipped.
Connect wires from ignition module to distributor
terminals, on all models.
4. When distributor housing contacts intake man-
ifold, camshaft and oil pump shaft are engaged.
Install hold-down clamp and bolt and snug up
bolt.
7.
8.
Coat any exposed terminals with Quicksilver Liq-
uid Neoprene.
5.
Connect distributor ground (–) leads, if so
equipped.
Time ignition as outlined under “Ignition Timing.”
6.
Place distributor cap in position and check that
rotor lines up with terminal for No. 1 spark plug.
Install new gasket on distributor housing. Install
cap.
Engine Disturbed
1.
Locate No. 1 piston in firing position by following
instructions “a” or “b”:
7.
8.
Refer to “Spark Plug Wires” and install wires. Re-
fer to “Specifications” for firing order.
a. Remove No. 1 spark plug and, with finger on
plug hole, crank engine until compression is
felt in No. 1 cylinder. Continue cranking until
pointer lines up with timing mark on crank-
shaft pulley.
Plug wiring harness into ignition module on dis-
tributor housing, on distributors so equipped.
Connect wires from ignition module to distributor
terminals, on all models.
9.
Coat any exposed terminals with Quicksilver Liq-
uid Neoprene.
10.
Time ignition as outlined under “Ignition Timing.”
Index
4B-12 - IGNITION SYSTEM
90-823224--2 796
| Categories | Mercury MerCruiser Manuals |
|---|---|
| Tags | Mercury MerCruiser 454 CID, Mercury MerCruiser 502 CID |
| Model Year | 1993, 1994, 1995, 1996, 1997 |
| Download File |
|
| Document File Type | |
| Copyright | Attribution Non-commercial |
(4 votes, average: 4.5 out of 5)
Marine readers have rated 1993 1997 Mercury-MerCruiser GM V8 454 CID 7.4L and 502 CID 8.2L Marine Engines Service Manual Number 16 4.5 out of 5.0 based on 4 product reviews. Hugely helpful service manual! Perfect. Thank you!
Manuals are all Important for Technician
This book is invaluable if you do your own repairs. Great book.
Could not find a copy until a search brought me here.
Excellent print.
Thank you