Remy REPLACING DELCO REMY BOSCH K1 ALTERNATORS User Manual

Page 3

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Technical support USA 800 854 0076, Mexico 01 800 000 7378, Brazil 0800 703 3526, South America 55 11 2106 6510 or visit
delcoremy.com

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

3

GROUND TERMINAL (ANY OF FOUR
EXTENDED BOLTS)

DO NOTINSTALL

A FAN ON 11SI

DELCO REMY 11SI REPLACING 12SI ALTERNATOR INSTRUCTIONS

[Figure 4] Identify and tag the output (B+/BAT) lead, optional ground lead, volta

ge regulator number one lead and optional relay “R”

lead. Note:

The old 12SI may not have an “R” terminal or has one that was not used. It will be identified with an “R” on the case, if it

has one. When following steps below, cut and terminate the wires one at a time to avoid possible reversing:

1.

If old 12SI alternator did not have or use a relay “R” terminal, go to step two.

-

Cut terminal off the relay lead, identified with an “R” on case and strip insulation about 1/2“. [Figure 1] Insert wire into red bullet

connector from red (shorter) adapter lead, crimp and plug into mating red connector of adapter.

2. Most 12SI’s have a sense lead (connected to # 2 terminal) which is not needed on the 11SI. Therefore, cut the lead and tape it to

prev

ent it from grounding. It is “live” hot.

3. On vehicle voltage regulator connector harness, cut the wire to number one terminal (“1” identified on end frame) and strip

insulation about 1/2“. [Figure 1] Insert wire into blue bullet connector from blue (longer) adapter lead, crimp and plug into mating
blue connector of adapter. Note:

The blue lead must be connected for the 11SI to “turn on” and operate correctly.

4. Plug and seat the weather pack adapter into the regulator opening.
5. If it has a ground lead, place it on ground terminal and tighten nut to 5.0-8.5 Nm 44-75 lb in). Delco Remy recommends use of a

ground lead.

6. Place output lead on output terminal and tighten nut to 7.5-10.0 Nm (66-88 lb in). DO NOT OVER TIGHTEN

OUTPUT TERMINAL NUT!

[FIGURE 4] 12SI ALTERNATOR








DELCO REMY 11SI REPLACING A BOSCH K1 ALTERNATOR

[Figure 5]

Identify and tag the output (B+), “D+”, "W” leads, which are identified on the end frame, and optional ground lead when

removing the K1 alternator (Note:

The “W” and ground terminals may not have been used). When following replacement steps

below, cut and terminate the wires one at a time to avoid possible reversing.

1.

If the Bosch K1 alternator did not have or use a relay “W” terminal, go to step two.

-

Cut terminal off the relay lead, identified with a “W” on case and strip insulation about 1/2“. [Figure 1] Insert wire into red bullet

connector from red (shorter) adapter lead, crimp and plug into mating red connector of adapter.

2.

Cut the ring terminal off “D+” lead of vehicle wiring harness and strip the insulation about 1/2“.

[Figure 1] Insert wire into blue bullet connector from blue (longer) adapter lead, crimp and plug into mating
blue connector of adapter. Note:

The blue lead must be connected for the 11SI to “turn on” and operate

correctly.
3. Plug and seat the weather pack adapter into the regulator opening.
4. If a ground lead was used on the K1, place it on the 11SI ground terminal and tighten nut to 5.0-8.5 Nm (44-75 lb in). Delco

Remy strongly recommends use of a ground lead.

5. Place output lead on output terminal and tighten nut to 7.5-10.0 Nm (66-88 lb in). DO NOT OVER TIGHTEN OUTPUT TERMINAL

NUT!

[FIGURE 5] K1 ALTERNATOR


DO NOT INSTALL

A FAN ON 11SI

HEXAGONAL

SHAFT HOLE

INSTALL THIS
PULLEY ON 11SI

GROUND TERMINAL THREADED HOLE

OUTPUT (B+) TERMINAL

RELAY “R” TERMINAL
(OPTIONAL)

VOLTAGE REGULATOR OPENING

RELAY “W” BLADE TERMINAL

(D+) TERMINAL

BATTERY (B+) TERMINAL

HEXAGONAL

SHAFT HOLE

INSTALL THIS
PULLEY ON 11SI

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