installation instructions for hall effect sensor · pdf fileger signal (commonly referred to...

9000-1011B REV A19/2000

CAUTION: READ INSTRUCTIONS CAREFULLY BEFORE STARTING INSTALLATION

INTRODUCTIONCrane Hall Effect crank trigger systems provide

absolutely stable and accurate ignition timing for profes-sional racing applications. Part numbers 9000-1100(Chevy small block) and 9000-1101 (Chevy big block) arecomplete kits that include the crankshaft trigger wheel,Hall Effect sensor, sensor mounting bracket, and allrequired hardware. The Chevy small block crank trigger kitwill fit most engines using dry sump oiling systems andstock harmonic dampers. The Chevy big block crank trig-ger kit will fit most aftermarket harmonic dampers. Partnumber 9000-1000 is a sensor only upgrade kit that canbe used with most Accel, Holley, MSD, and Moroso flyingmagnet crank trigger systems using ¾-16UNF threads forsensor mounting.

Unlike conventional magnetic sensors that respond tochanges in the magnetic flux as the magnet passes thesensor, the Hall Effect principle senses the actual mag-netic field strength. It precisely senses magnet positionregardless of rotational speed and is less sensitive to vari-ations in gap between the sensor and wheel. Timing scat-ter is greatly reduced. Timing variations with RPM areeliminated and the system can even be used to set statictiming. The Hall Effect sensor includes an internal amplifi-er that generates a robust 12 volt square wave type trig-ger signal (commonly referred to as a points type signal).The points type signal offers much greater RFI noiseimmunity. The trigger signals are compatible with mostaftermarket ignitions including Crane HI-6, HI-7, HI-8 andMSD 6, MSD 7, and MSD 8 systems. The Hall Effectcrank trigger can also be used in conjunction with enginecontrols such as the Crane DEC9500.

A status LED on the sensor can be used to set statictiming. The LED is normally illuminated whenever power ison and the sensor is not in proximity to a crank triggerwheel magnet. As the magnet approaches the sensor andreaches the trigger position, the LED goes out.

INSTALLATION OVERVIEWIf you are upgrading an existing flying magnet crank

trigger system with a Crane Hall Effect sensor, skip ahead

to the Sensor Upgrade section on page 3. If you areinstalling a complete Crane crank trigger system - installthe arm and pickup bracket first, then install the triggerwheel. Location of the sensor will determine the choice oftrigger wheel mounting holes.

ARM & PICKUP BRACKETINSTALLATION1. Mount the pickup bracket onto the adjustment arm

using two fine thread bolts and washers. Refer toFigure 1 for small block installation or Figure 2 for bigblock installation. The bracket retention plate receivesan off center dowel pin. If the bolt holes do not line up,rotate the retention plate 180 degrees. Position thepickup bracket in the center of the adjustment slot andfinger tighten the bolts at this time.

2. The adjustment arm can be installed on either the leftor right side of the harmonic damper. Select the sidethat is best suited for your application. Starting with a1/2” spacer combination (one 3/16” spacer and one5/16” spacer), mount the bracket and arm assembly tothe engine block using two coarse thread bolts. Referto Figures 1 or 2. Finger tighten the bolts at this time.

3. Thread the supplied jam nut onto the Hall Effect sen-sor. Screw the sensor into the pickup bracket. Do nottighten the jam nut at this time.

INSTALLATION INSTRUCTIONS forHALL EFFECT SENSOR ANDCRANK TRIGGER SYSTEMPart Numbers 9000-1000, 9000-1100, & 9000-1101

WARNING: Do not come into contactwith the coil primary wires or the sec-ondary plug wires while the engine isrunning. Disconnect battery groundbefore performing any work on theengine.The ignition will fire if the key ison and the engine is rotated at any RPM,even very slowly. Do not connect a tim-ing light or other test equipment to anycoil terminal.

9000-1011B REV A29/2000

TRIGGER WHEEL INSTALLATION1. Rotate the crankshaft until the #1 cylinder approaches

TDC and the crankshaft is at the desired timing angle(degrees BTDC where you want the spark to fire).

2. Small block Chevy engines only: select and install thecorrect trigger wheel alignment ring for your applica-tion.

3. Fit the trigger wheel recess over the harmonic damperboss. Rotate the trigger wheel (and alignment ring ifused) until the mounting holes line up with the damperand one of the four magnets is located near the cen-terline of the Hall Effect sensor. Note that the pulleyspacers may require machining to provide proper beltalignment after trigger wheel installation. Use three finethread bolts to secure the trigger wheel to the harmon-ic damper. Torque these mounting bolts to 25 - 30 ft-lbs.

4. Use a dial indicator (base mounted to the pickup brack-et or crankcase). Rotate the engine by hand and verifythat the run out of trigger wheel is less than .015” TIR.

Then rotate the crankshaft back to the desired timingangle as in step 1.

5. Refer to Figure 4. Align the centerline of the Hall Effectsensor with the centerline of the trigger wheel magnet.This action will also establish static timing accurate towithin a few degrees. Addition or removal of spacersbehind the adjustment arm may be required to pre-cisely align the sensor to the wheel.

6. Set the air gap between the trigger wheel and the sen-sor between .045” - .060”. Tighten the sensor jam nutand all other hardware that was previously finger tight.Skip ahead to the Ignition System Hookup section onpage 3.

CHOOSESPACER WIDTH5/16" 1/4" 3/16"

ADJUSTMENTARM

RETAINERPLATE

JAMNUT

SENSORBRACKET

5/16" - 24 x 1.25(FINE THREAD)

3/8"-16 x 1.75"(COARSE THREAD)

HALL EFFECTSENSOR

Figure 1. Chevy Small Block Bracket andArm Assembly

CAUTION: An alignment ring must beused in all small block Chevy applica-tions. Refer to Figure 3. The crank trig-ger wheel will fit most enginesequipped with a dry sump oiling sys-tem or stock harmonic dampers. Selectthe correct alignment ring for yourapplication. Do not rely on the mount-ing bolts to accurately center the trig-ger wheel.

CHOOSESPACER WIDTH5/16" 1/4" 3/16"

ADJUSTMENTARM

RETAINERPLATE

JAMNUT

SENSORBRACKET

5/16" - 24 x 1.25 (FINE THREAD)

HALL EFFECTSENSOR

7/16"-14 X 1.5"(COARSE THREAD)

Figure 2. Chevy Big Block Bracket and ArmAssembly

STOCK ALIGNMENT RING

DRY SUMP PUMP ALIGNMENT RING

TOHARMONIC

DAMPER

TOTRIGGERWHEEL

TO HARMONICDAMPER WITH

A PUMP MANDREL

TOTRIGGERWHEEL

Figure 3. Alignment Ring Selection

9000-1011B REV A39/2000

SENSOR UPGRADE

Remove the existing magnetic crank trigger sensorfrom the pickup bracket. Thread the supplied jam nut ontothe new Crane Hall Effect sensor. Screw the Hall Effectsensor into the pickup bracket. Set the air gap between thewheel and the sensor between .045” - .060”. Tighten thesensor jam nut.

IGNITION SYSTEM HOOKUP1. The Hall Effect sensor is provided with an extension

harness. Route the extension harness close to framerails. To avoid false triggering from noise, keep theextension harness away from the ignition coil, coilwiring, and spark plug wires. Secure the extension har-ness with supplied nylon wire ties.

2. For hookup of the most popular Crane and MSD igni-tion configurations, refer to Figures 7 - 14.You can usea hookup similar to Figure 7 for most other systemswith a points trigger input.

3. +12V. Connect the red wire from the sensor to +IGNon ignition system or direct to ignition key or otherswitched +12V source.

4. GROUND. The black wire from the sensor is ground.Connect the black wire to the ground terminal on theignition system or direct to chassis ground.

5. POINTS TRIGGER. Connect the white wire from thesensor to the points input terminal on the ignition sys-tem. When triggering an MSD 8 ignition, connect thewhite points wire to the Mag+ terminal. Refer to Figure12.

DISTRIBUTOR ROTOR PHASING

1. When using a crank trigger system, the distributor nolonger controls the ignition timing, but you must still setthe correct rotor phasing. If you are using a centrifugaladvance distributor, lock up or weld up the advancemechanism. Otherwise rotor phasing will change withRPM.

2. Refer to Figure 5. Rotate the crankshaft until the #1cylinder approaches TDC and the crankshaft is at thedesired timing angle (degrees BTDC where you wantthe spark to fire).

3. Loosen the distributor hold down clamp and rotate thedistributor until the rotor is directly aligned with the #1terminal on the distributor cap. Then tighten the holddown clamp again. This establishes rough rotor phas-ing.

TIMING ADJUSTMENT AND PRECISEROTOR PHASING

1. Start the engine and check the ignition timing. If youare upgrading the sensor in an existing crank triggerinstallation, timing may change several degrees andrequire re-adjustment. You can adjust the ignition tim-ing by sliding the Hall Effect sensor and bracketassembly in the adjustment arm slot as shown inFigure 5. To retard the timing, slide the sensor andbracket assembly in the same direction as crankshaftrotation. To advance the timing, slide the sensor and

CAUTION: Incorrect rotor phasing cancause loss of ignition energy or enginedamage from crossfiring.

WARNING: To avoid personal injury, donot adjust timing while the engine isrunning. Before starting the engine forthe first time, double check all electri-cal connections.

CAUTION: The Crane Hall Effect sensorcan only be used with flying magnettype crank trigger systems with ¾-16UNF threads for sensor mounting.The Hall Effect sensor will not functionwith older variable reluctance typecrank trigger systems (wheels withlugs or projections, but without embed-ded magnets).

TRIGGERWHEEL

SIDE VIEW

SENSOR

SENSORCENTERED TO TRIGGERWHEEL CENTER LI NE

Figure 4. Sensor Alignment

9000-1011B REV A49/2000

bracket in the opposite direction. Check the sensor totrigger wheel air gap whenever you adjust the timing.

2. To check the rotor phasing, cut or drill a large hole inthe distributor cap near a terminal as shown in Figure6. Use a timing light connected to that terminal andobserve rotor alignment when the engine is running.The rotor tip should be aligned with the terminal asshown in the figure. If not, you must rotate the distribu-tor to achieve proper alignment. Install a new distribu-tor cap when you are done.

TROUBLESHOOTING HINTSDid the engine run properly before installation of the

crank trigger system? If not, remove the crank trigger sys-tem and then find and correct the original problem. Did theHall Effect sensor ever function correctly? If the answer isyes, did you change anything that may have affected oper-ation? If the engine will not start, runs rough or intermit-

tent, double check all electrical connections. Try a differ-ent ground connection point. If the LED on the sensordoesn’t light up, use a voltmeter to verify +12 volts at thered wire from the sensor. Make sure you have power whenthe engine is cranking. During cranking, the sensor willoperate down to +5 volts.

You can verify a trigger pulse by watching the LED onthe sensor as the crank trigger wheel is rotated. The LEDshould go out whenever a magnet passes the sensor. Ifyou have a Crane ignition with diagnostic LED, the LED onthe ignition module should blink whenever a trigger pulseis received. Above cranking RPM, it will remain lit.

CORRECT ROTOR TO CAP PHASING

TERMINAL

ROTOR TIP

TIMING LIGHTDISTRIBUTOR

CAP

Figure 6. Distributor Phasing

TRIGGERWHEEL

FRONT VIEWOF ENGINE

CRANKROTATION

RETARD

ADVANCE

ADVANCE

RETARD

Figure 5. Timing Adjustment

59/2000 9000-1011B REV A

+

12 VOLTBATTERY

IGNITIONSWITCH

BALLASTRESISTOR

(not always used)+12V

RUN

START

FM

O. E. WIRE THAT WAS REMOVED FROM COIL +

HI-6

WHITEPOINTS

WHITEPOINTS

SENSOR EXTENSIONHARNESS

THIN REDIGNITIONHEAVY RED

BAT +

HEAVY BLACKCHASSIS GROUND

Notes: 1. Connections are made with 1/4" male - female quick disconnects.

2. Use #10 ring terminal for chassis ground connection of black wire.

3. O.E. ballast resistor is not required, but can be left connected.

4. Refer to HI-6 instructions for tach, cylinder select, stage limit, and retard hookup (as applicable). Magnetic trigger cable not shown for clarity. Cut magnetic trigger cable short and tape up each lead separately. HI-6 will not run if magnetic trigger leads short together or to ground.

COILCABLE

SEENOTE 1

REDIGNITION

+12V

SEENOTE 2

BLACK CHASSIS GROUND

SEENOTE 1

LX92COIL

FM

CRANESENSOR

CRANKTRIGGER

ARM

SENSORBRACKET

RECESSED SURFACEON BACKSIDE OF WHEEL

MARKINGS INDICATELOCATION OF MAGNET

CRANK TRIGGER WHEELWITH CRANE CAMS LOGO

(Front View)

3 PIN WEATHER PACKCONNECTOR

Figure 7. Crane HI-6 Hookup

69/2000 9000-1011B REV A

SHIE

LD

MAG

+PO

INTS

AUX

INST

ATUS

TACH

IGN

+

JUMPER WHENUSING POINTS INPUT

HI-7or

HI-8

CRANE

IGNITIONSWITCH

RPMX100

TACHOMETER


BLACK

TO+12V

WHITEPOINTS

REDIGNITION

+12V

RED18 AWG

NOT

USED

Note:Ignition will not function unless MAG+is jumpered to IGN+ as shown. Powerand coil connections not shown.

CRANESENSOR

CRANKTRIGGER

ARM

SENSORBRACKET




(Front View)


MAG

-

Figure 8. Crane HI-7/HI-8 Hookup

79/2000 9000-1011B REV A

SHIE

LD

MAG

+PO

INTS

AUX

INST

ATU

STA

CH

IGN

+

JUMPER WHENUSING POINTS INPUT

HI-7or

HI-8

CRANE

IGNITIONSWITCH


RED +12V

WHITE POINTS

BLACK GROUND

NOTE: MAG+ must be jumpered to IGN+ when using points input onCrane HI-7 or HI-8 systems. Power and coil connections not shown.

TO+12V

NO

T U

SED

CRANESENSOR

CRANKTRIGGER

ARM

SENSORBRACKET


(Front View)


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CHASSIS GROUNDNEAR IGNITION

MAG

-

NOTE: MAG- terminal on DEC9500 used as groundconnection point for crank trigger sensor.

Figure 9. Crane DEC9500 and HI-7/HI-8 Hookup

89/2000 9000-1011B REV A

IGNITIONSWITCH

FM

COIL

+

WHITEPOINTS

WHITEPOINTS

SENSOREXTENSION HARNESS

FF

REDIGNITION

BLACKORANGE

HEAVY BLACK TOCHASSIS GROUND

HEAVY RED TOBATTERY +

FSEE

NOTE 1

Notes:1. Connections are made with two sets of 1/4" male - female quick disconnects.

2. Use #10 ring terminal for chassis ground connection of black wire.

M

COILCABLE

SEENOTE 1

REDIGNITION

+12V

SEENOTE 2

BLACKCHASSIS GROUND

TO+12V

COIL

MAGNETIC PICKUPCONNECTOR

TACHOUTPUT

CRANESENSOR

CRANKTRIGGER

ARM

SENSORBRACKET




(Front View)


Figure 10. MSD 6 Hookup

99/2000 9000-1011B REV A

IGNITIONSWITCH

WHITEPOINTS


REDIGNITION

+12V

REDIGNITION

+12V

TO+12V

BLACKCHASSIS GROUND

Note: MSD power and coilconnections not shown.

RPMMODULE

PLUG

C+C-

IGN

PTSM+M-

MSD-7AL IGNITION

TACH

GROUND

CRANESENSOR

CRANKTRIGGER

ARM

SENSORBRACKET




(Front View)



109/2000 9000-1011B REV A

IGNITIONSWITCH

WHITEPOINTS


REDIGNITION

+12V

BLACKGROUND

TO+12VC+

C-IGN

GNDM+M-

MSD-8 IGNITION

TACH


CRANESENSOR

CRANKTRIGGER

ARM

SENSORBRACKET




(Front View)



119/2000 9000-1011B REV A

IGNITIONSWITCH

TO+12V


RED +12V


RPMMODULE

PLUG

C+C-

IGN

PTSM+M-

MSD-7AL IGNITION

TACH

GROUND

CRANESENSOR

CRANKTRIGGER ARM

SENSORBRACKET


(Front View)


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CHASSIS GROUNDNEAR IGNITION

WHITE POINTS

BLACK GROUND

NOTE: MAG- terminal on DEC9500 used as groundconnection point for crank trigger sensor.

Figure 13. Crane DEC9500 and MSD 7 Hookup

129/2000 9000-1011B REV A

+

12 VOLTBATTERY

IGNITIONSWITCH

BALLASTRESISTOR

(not always used)+12V

RUN

START

FM

O. E. WIRE THAT WAS REMOVED FROM COIL +

WHITE

WHITE


THIN REDIGNITION

HEAVY REDBAT +

Notes: 1. Connections are made with 1/4" male - female quick disconnects.

2. Use #10 ring terminal for chassis ground connection of black wires.

3. O.E. ballast resistor is not required, but can be left connected.

4. Refer to HI-6 instructions for tach, cylinder select, stage limit, and retard hookup (as applicable). Magnetic trigger cables on HI-6 and Model 9000-0007 not shown for clarity. Cut magnetic trigger cables short and tape up each lead separately. System will not run if any magnetic trigger leads short together or to ground.

SEENOTE 1

REDIGNITION

+12V



LX92COIL

CRANESENSOR

CRANKTRIGGER

ARM

SENSORBRACKET




(Front View)

BLUE

BLUE

COILCABLE

ORANGECOIL+

BLACKCOIL-

HI-6

HEAVY BLACKCHASSIS GROUND

OFF ON OFFON

MSD MODE

MAX LIMIT HIGH GEAR

STAGE LIMIT MAX LIMITRPM X 100

INITIALTIMING

STAGE LIMIT

POWER

OFF ON

CYLINDERS4 6 8

OFF OFF

START RETARD

01 2

3 45

6

789

01 2

3 45

6

789

01 2

3 45

6

789

01 2

3 45

6

789

01 2

3 45

6

789

01 2

3 45

6

789

TRIGGER

PN 9000-0007

HIGHGEAR

RETARDDIGITALENGINECONTROL


WHITE

PURPLE

RED

MODEL 9000-0007

Figure 14. Crane Model 9000-0007 and HI-6 Hookup

installation instructions for hall effect sensor · pdf fileger signal (commonly referred to...

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