Pump Indexing
5. Reinstall four pump-to-adaptor attaching bolts
and torque to 204-264 lb. in. (23-29 N·m).
Pump must be correctly indexed to correspond with
engine rotation. If pump is not indexed correctly,
pump will not create fluid pressure allowing the trans-
mission to shift. Pump housing has two arrows, each
pointing in a different direction. Pump must be posi-
tioned so that the arrow (pointing in the direction that
input shaft and pump will be turned by engine) is at
the top of transmission.
a
b
c
!
CAUTION
d
Position pump housing with cast arrow at top
pointing in the same direction as engine rotation.
c
IMPORTANT: Some transmissions have letters
“RH” and “LH” on pump housing. Letters DO
NOT indicate shaft rotation.
e
If pump must be indexed, proceed as follows:
1.
2.
Remove four pump attaching bolts.
Loosen the pump housing. A soft tip mallet may
be used to tap the fluid passage boss. Do not
strike the bolt bosses.
72842
MIE LH (Standard) Rotation Engine
a - Top Of Transmission
b - Word “Top” and Cast Arrow
c - Pump Attaching Bolts
d - Input Shaft
IMPORTANT: Do not remove the pump from the
shaft unless a seal protector is used to prevent
the shaft splines from cutting the pump seal.
Care must be taken to ensure that seal, gasket,
seal and bolt bosses are kept in good condition
to prevent leaks in those critical areas.
e - Pump Assembly
3.
4.
Make sure that pump gasket is not sticking to
housing (to prevent gasket from tearing or fold-
ing) when rotating pump.
Rotate pump until arrow indicating the proper di-
rection of pump rotation is near the top of trans-
mission.
index
8A-8 –VELVET DRIVE IN-LINE TRANSMISSION
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