Tilton 7.25&5.5 Carbon Clutches (98-1300) User Manual
Page 3
6. Whenever inspecting a clutch, be sure to replace all of the plates in the same position and
orientation (Diagram 5) in which they were originally installed. The "^" symbol is used to
indicate alignment marks for floater plate order; "^" being the first floater closest to the
pressure plate, "^^" the second, and so on. Orientation is defined by the alignment of the
individual floater plate marks and the corresponding cover marks (Diagram 6). The letter
"X" is used to indicate alignment marks for driven plate order; "X" being the driven plate
closest to the pressure plate, "XX" the second closest, and so on. Because the driven plates
do not share alignment marks with the cover, (FS=Flywheel Side) is added before each "X" to
clarify the correct orientation of the individual driven plates (Diagram 7) with respect to the
flywheel or flexplate.
7. Blowing out a clutch cover with an air nozzle is acceptable. Cleaning the clutch cover in a
solvent tank is not recommended as this removes the grease from the internal diaphragm
spring pivot locations.
8. Always start a 12 or 24-hour race with a new or freshly rebuilt clutch.
9. If the clutch is used too far beyond recommended wear (pressure plate change) intervals, the
clutch may slip excessively and result in total clutch loss. Carbon clutches are rebuilt at Tilton
and can be sent directly or through your distributor. If you send it directly, call first to obtain
a Returned Merchandise Authorization (RMA) number. It is to your benefit to supply informa-
tion on the type of car, type of racing, and any other particulars concerning the reason for
the return. You will be provided with a quote before work is performed. All rebuilt clutches
are tested for clean release, torque capacity, and clamp load before being returned to the
customer.
Diagram 7
Diagram 6
Table 3
Table 2
5.5" Pressure Plates
Thickness
Medium Ratio
High Ratio
Ultra-High Ratio
.187"
655-118M-187S
655-118H-187S
655-118U-187S
.197"
655-118M-197S
655-118H-197S
655-118U-197S
.207"
655-118M-207S
655-118H-207S
655-118U-207S
.217"
655-118M-217S
655-118H-217S
655-118U-217S
.227"
655-118M-227S
655-118H-227S
655-118U-227S
.237"
655-118M-237S
655-118H-237S
655-118U-237S
.247"
655-118M-247S
655-118H-247S
655-118U-247S
.257"
655-118M-257S
655-118H-257S
655-118U-257S
.267"
655-118M-267S
655-118H-267S
655-118U-267S
.277"
655-118M-277S
655-118H-277S
655-118U-277S
.287"
655-118M-287S
655-118H-287S
655-118U-287S
.297"
655-118M-297S
655-118H-297S
655-118U-297S
.307"
655-118M-307S
655-118H-307S
655-118U-307S
7.25" Pressure Plates
Thickness
Ultra-High Ratio
.360"
657-118U-360
.370"
657-118U-370
.380"
657-118U-380
.390"
657-118U-390
.400"
657-118U-400
.410"
657-118U-410
.420"
657-118U-420
.430"
657-118U-430
.440"
657-118U-440
.450"
657-118U-450
.460"
657-118U-460
.470"
657-118U-470
.480"
657-118U-480
.490"
657-118U-490
.500"
657-118U-500