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Instructions
for transmissions without removable bellhousings
1.
Remove the factory bearing from the front of the transmission.
Install the RAM collar using the supplied M6 bolts. Slide
the bearing over the collar.
2. Measure
from the bearing face (fully retracted) to the face of bellhousing
(block side). Use a
straight edge across the top of the bellhousing to measure so you get an
accurate number. This operation may require a helper to hold the straight
edge. Check this several
times and record the number (see photo 11).
photo
11
3.
Now
determine the mounting position dimension of the clutch on the engine.
Two situations are possible.
1 – the clutch fingers sit below the top edge of the pressure
plate cover, and 2 – the clutch fingers sit above the top edge of the
pressure plate cover. The
measurement we are after is from the back face of the engine block to
the tips of the clutch fingers.
4.
If the clutch fingers sit below the top edge of the pressure
plate cover, two measurements are required.
First, place a straight edge across the top edge of the cover
plate. Measure straight
down to the clutch fingers. Record
this measurement (see photo 7A).
photo
7A
5.
To take the second measurement, lay the straight edge across the
top of the cover and measure from the straight edge down to the back
face of the engine block. Check
this measurement on both sides and use an average number see photo 7B).
photo
7B
6.
To calculate the clutch finger height, subtract the 7A
measurement from the 7B measurement.
7.
IF
YOUR CLUTCH FINGERS ARE TALLER THAN THE TOP OF THE CLUTCH COVER,
take your 7B measurement by laying the straight edge across the clutch
fingers and measuring down to the engine block.
8.
Now use your measurements to determine proper shimming based on
the bearing measurements shown in the example below.
Example
bearing measurements
Clutch
fingers to block measurement: 3.500”
Bearing
height with 2 shims:
3.325”
Bearing
height with 3 shims:
3.475”
So
in this example, the installed gap would be:
With
2 shims:
3.500 - 3.325 = .175” gap
With
3 shims:
3.500 – 3.475 = .025” gap
The
total potential movement of the bearing on the collar is .850”. In
selecting the proper shims, you must make sure to allow enough
room for the clutch to wear, and also allow enough forward
travel (roughly .500”) without hitting the front stop on the
bearing. By using
two shims in this example, we are .195” off the fingers.
This will allow for adequate wear clearance as the
fingers move back. RAM
recommends a minimum of .150” and maximum of .175”
clearance.
For
78175 .150" minimum and .175" maximum clearance
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photo
12
9.
Install the hydraulic lines to the bearing, routing them through
the factory openings in the
bellhousing (see photo 12). The
top outlet of the bearing is used as the bleeder – install the bleed
fitting in this line now to avoid confusion.
10.
Re-install the transmission, carefully routing the hydraulic
lines.
11.
RAM provides an adapter fitting to connect from the bearing to
the factory master cylinder. Connect
the feed end of the #3 line from the bearing to the #3 end of the
adapter. Connect the other
end of the adapter to the factory quick disconnect line from the master
cylinder.
12.
Route the bleeder line so you have access to the screw and bleed
the system. Use only dot 3
fluid.
13.
Make SURE that all hydraulic lines are routed away from
any heat sources and securely tied.
Use heat wrap if necessary.
14.
Test the clutch system for release.
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