Remy 36SI HP™ ALTERNATOR - Manual

Instruction Sheet
10513508
19JL13 C/P30502 REV4
NOTICE - Only licensed Remy International, Inc. product and component parts should be used, and the use of other parts or modifications not approved
by Remy International, Inc. will void all applicable warranties. The failure to carefully follow these Installation Instructions, set forth above, will void all
applicable warranties. DELCO REMY is a registered trademark of General Motors Corporation, licensed to Remy International, Inc. Pendleton, IN 46064.
©
2012 Remy International, Inc. All rights reserved 1
35SI HP ™ & 36SI HP™ ALTERNATOR INSTRUCTIONS FOR REPLACING
DELCO REMY 21SI, 22SI, 23SI, 33SI, 34SI, 35SI AND 36SI ALTERNATATORS
When upgrading one of the above Alternators to a 35SI HP
™ or 36SI HP™, the Delco Remy 35SI HP or 36SI HP with Remote Sense™
Technology is strongly recommended. The remote sense ™ option, also available on 21SI, 22SI, 33SI and 34SI is highly recommended
for improved Battery Monitoring and Charging for all applications. Remote Sense ™ Technology senses the voltage level at the
batteries or similar location where battery system voltage can be read and adjusts alternator output accordingly. A direct connection from
the alternator’s remote sense terminal to the batteries provides highly accurate system voltage readings and optimizes state of charge.
Typical Alternator Battery Charge
Circuit without a Remote Sense
™
line is only 14.0 volts, with normal
voltage drops in the circuit.
Alternator Battery Charge Circuit
with a Remote Sense
™ line is 14.5
volts. Voltage is always adjusted to
battery system requirements.
There are two types of remote sense circuits in Delco Remy alternators. One type has remote sense with an internal back-up circuit and
the other type does not have an internal back up circuit.
The 35SI HP
™ and 36SI HP™ all have internal back-up circuits. If the sense line is not connected to the remote sense™ terminal, the
alternators regulate at a voltage above the external sense setting to compensate for any voltage drop between the alternator output
terminal and the batteries.
WARNING!!!! ALWAYS USE PROPER EYE PROTECTION WHEN PERFORMING ANY MECHANICAL REPAIRS TO A VEHICLE –
INCLUDING, BUT NOT LIMITED TO, ANY INSTALLATION AND OR REPAIRS TO THE DELCO REMY ALTERNATORS. FAILURE TO
USE PROPER EYE PROTECTION CAN LEAD TO SERIOUS AND PERMANENT EYE DAMAGE.
DANGER!!! To avoid injury or damage, always disconnect the negative cable at the battery before removing or replacing the alternator.
The alternator output terminal is always live (“hot”). If the battery is not disconnected, a tool accidentally
touching this terminal and ground can quickly get hot enough to burn skin or damage to the tools and surrounding parts.
FOLLOW ENGINE OR VEHICLE MANUFACTURER’S INSTRUCTIONS FOR REMOVING THE OLD ALTERNATOR FROM THE
ENGINE AND INSTALLING THE NEW ALTERNATOR.
PULLEY INSTRUCTIONS: Use pulley from old alternator if this alternator does not have a pulley or pulley supplied is different from the one
on alternator being replaced. NOTICE! When changing the pulley, keep the alternator in the horizontal position and do not apply
any pressure to end of the shaft. Internal damage will occur if the shaft is pushed back and turned. If there were spacers, when the
fan and pulley were removed, make sure all spacers are replaced when installing the fan and pulley on the
35SI or 36SI alternator. Hold the shaft by placing
an 8 mm (5/16”) hex wrench in the hexagonal hole in the
shaft while removing or installing the pulley. Tighten the pulley nut to 95-108 Nm (70-80 lb ft).
BELT TENSIONING INSTRUCTIONS: Improper belt tension can cause premature alternator failure. If the
belt must be tightened manually, place a wood block between the alternator and pry bar (See illustration).
Pry as close to the center of the unit as possible. Use a torque wrench to tighten mounting bolts to specified
torque. Follow vehicle or e
ngine manufacturer’s specifications carefully for belt tension and mounting bolts
torque. DO NOT OVER TIGHTEN BELT!
INSTALLATION INSTRUCTIONS (See illustrations, page 2):
 Disconnect the negative (-) cable at the batteries.
 Identify all leads when removing the old Alternator and install them on the same terminals of the 35SI or 36SI Alternator.
 Some 21SI and 22SI applications may require enlarging the ring terminals. Others will require cutting and terminating wiring for one or
all of the “I”, “R” and “Remote Sense” leads.
 Cut lead, strip insulation 1/2”, insert wire into an A3 Amp or equivalent ring terminal, crimp and solder the wire.
 NOTICE! Ensure all leads are hooked back up or contained where they can not ground. The sense lead is live “hot”.
 Torque all fasteners to values labeled on the illustration (page 2).
This 35SI or 36SI may have more terminals than the alternator it is replacing had or used. This 35SI or 36SI will function properly by
only connecting the leads that were used on the alternator being replaced.
14.5 Alternator Volts
- .2 Voltage Drop
- .3 Voltage Drop
14.0 Volts Sensed
at Alternator
+.5 Voltage Adjustment
with Sense Line
14.5 Charge Voltage