Ski-Doo REV Series Shop Manual

Section04ENGINE
Subsection 01 (593, 593 HO, 593 HO SDI AND 793 HO ENGINE TYPES)
Check for cracked, dried or perforated bellows
no. 13.
Check if the compression springs no. 7 are in
specifications.
ENGINE
TYPE
SPRING
P/N
COLOR
WIRE
DIA.
mm
(in)
FREE
LENGTH
mm (in)
593 420 239 944 Brown
0.9
(.035)
48.5
(1.91)
593 HO 420 239 944 Brown
0.9
(.035)
48.5
(1.91)
593 HO SDI 420 239 942 Black
0.8
(.031)
42.5
(1.67)
793 HO
(All models
except
Summit)
420 239 941 Blue
0.8
(.031)
52.5
(2.07)
793 HO
(All Summit)
420 239 942 Black
0.8
(.031)
42.5
(1.67)
ASSEMBLY
RAVE System
Apply sealing compound Drei Bond (P/N 420 297
906) in the groove of valve base and in the piston
valve groove, then install bellows.
Install RAVE valve with its mention top as illus-
trated in the following photo.
A32C15A
Tighten red cap screw no. 28 to bottom.
Piston
When installing a new cageless bearing, replace
half plastic cages with sleeve.
NOTE: 593, 593 HO, 593 SDI and 793 HO engine
cageless bearings have 28 needles.
1
A02C2GA
TYPICAL
1. Sleeve
Lubricate needle bearings and thrust washers
with injection oil then install washers on each end
of needles.
Insert cageless bearing into connecting rod.
A02C2HA
TYPICAL — CAGELESS BEARING AND SLEEVE INSTALLED
Heat piston using bearing heater (P/N 529 035
969).
mmr2004-Rev 95

Ski-Doo REV Series Specifications

General

Chassis	REV
Track Width	15 in
Fuel Capacity	10.6 gal
Seating Capacity	1
Reverse	Available on most models
Electric Start	Available on most models