88 Manual - Ferret Instruments
Contents
1. MANUAL Digital Tach Advance Timing ss Light Mode Induc Button tive Spark Pickup f i Advance Power Buttons Leads Copyright 2005 GxT Inc All Rights Reserved Introduction The Ferret 88 is a Dual Display Tach Advance Timing Light Both RPM and advance can be read at the same time The Ferret 88 also includes a Strobe function which will allow you to measure the RPM of any rotating device Operating Specifications Scale Range Resolution Accuracy Advance 400 5 000 RPM to 90 degrees 0 5 degree 1 degree Tachometer 400 to 9 990 rom 10 rom 1 Strobe RPM 400 to 5 000 rom 10 rom 1 Power Req 10 to 16 Volts DC 1 5 Amp 12 volt battery Temperature Operating 0 to 122 F 18 to 50 C Storage 40 to 180 F 40 to 80 C Weights amp Dimensions Leads 5 feet 1 5 meter Weight 1 7 pounds 770 gram Size 12 inches tip to tip 2 8 wide 30 x 7 cm Timing Advance Test Procedure This light measures advance by delaying the flash so that it appears to align the crank shaft TDC mark to its pointer and then displaying the degrees delayed Note that on engines with ignition contact points dwell affects timing and must be in calibration before timing is adjusted 1 Connect the power leads RED ae el BLACK negative Push the Mode Select button to select 2 or 4 stroke operation Place the Inductive Pickup around the 1 spark plug wire 2 Prepare the engine for timing tests such as warming up disabling electric2. and vacuum control lines and cleaning the wheel timing marks Then run the engine The light should begin flashing 3 Read RPM and set the engine speed to the test specification 4 Point the light beam onto the degree marks at the engine damper wheel or flywheel and move the apparent mark to the TDC position using the Timing Advance Control Buttons Then read the timing advance on the display NOTE Align your eye squarely with the timing marks when viewing to avoid parallax error 5 Compare the measurement with the specification Adjustments are made by turning the distributor slightly or by moving the ignition timing sensor 6 Restore all engine parts to their normal arrangement FERRET BRAND LIMITED PRODUCT WARRANTY GxT Inc of Cheboygan Michigan warrants to the original purchaser that FERRET brand products are free from defects in materials and workman ship for a period of two years from date of purchase Our sole obligation for a product within the above warranties will be to repair or replace at our option any defective parts and return the product to the sender within the U S A shipping prepaid if itis sent to our Repair Department shipping prepaid and accompanied by proof of purchase This Warranty does not apply to products which have been altered outside the factory or repaired by anyone other than the factory or its authorized service centers or which have been damaged from accidents negligence or abuse or ha
3. can be answered by contacting GxT Inc at Toll Free 800 627 5655 Fax 231 627 2727 Toll Free 231 782 0616 or repair gxtauto com When sending an item to the factory address it to GxT Inc 520 MM Riggs Drive Cheboygan MI 49721 1061 Include a note describing the problem Replacement Parts X008 01 Inductive Spark Pickup X006 81 Storage Case E088 01 Instruction Manual Optional Ferret 765 Diesel Pulse Adapter PIEZO CLAMP Clamps around a 1 4 6 35mm fuel line senses the pulse of fuel to 1 Cylinder and triggers the timing light or engine analyzer DIRECT CONNECTION Eliminates confusion and increases accuracy by directly connecting to the test instrument in place of the Spark Pickup INDICATOR LIGHT Flashes when a signal is detected from the Piezo Clamp 9V BATTERY POWERED Internal 9 volt battery eliminates the need for power leads ENGINE COMPATIBILITY Works on most Diesel engines with 1 4 external fuel lines
4. SAFETY PRECAUTIONS Read All Instructions Before Using The Analyzer Always wear eye protection when testing vehicles Be extra careful near batteries and moving parts Do not lay tools on a battery Battery gas is highly explosive lf a battery explodes flush the acid away from skin with generous amounts of water Follow up with a neutralizing solution of baking soda and then more water Never use a wrench on the ungrounded battery terminal until the grounded one has been disconnected Contact between the vehicle body metal and the hot terminal can cause sparks to ignite gas or even weld tools into a battery short circuit Keep the space around a battery well ventilated Do not make sparks or allow flames near batteries Before working on a vehicle set the brakes and block the wheels Beware of automatic parking brake releases Keep your work area well ventilated and free of exhaust Avoid electrical shocks caused by getting close to live ignition wires or touching the coil TACH terminal A person s reaction near a live engine can be more damaging than the shock Keep spark producing devices at least 0 5m 18 above the floor to reduce the hazard of igniting gasoline vapor Do not let test leads wind up in a moving fan or pulley Route leads away Remove finger rings and metal wrist bands They can short terminals and become very hot from electric current E088 01G FERRET INSTRUMENTS OPERATOR S MANUAL
5. connect and plug the input hoses and then couple the input to a hand pump with gauge Run the engine at idle to see the timing change with and without applied vacuum Centrifugal Advance Measurement Mechanical ignition controls usually have a set of spinning weights in the distributor which advance the spark timing a certain number of degrees as RPM goes from idle to driving range To see the centrifugal advance alone vacuum actuators must be disabled Besides the amount of change it is important to see that the advance changes smoothly with slowly increasing RPM Sticky weight pivots rust and bad retracting springs are the usual problems Total Advance Measurement This is the advance at a specified RPM with the engine timing controls intact Coil Wire Timing Use only when required by engine specifications Be sure to set advance to zero because the location of the mark will otherwise be affected by the number of cylinders Strobe Light Measurements The Strobe function on the Ferret 88 does not require the use of the inductive spark pickup You can use the strobe function to determine the RPM of any rotating device 1 Connect the power leads RED positive BLACK negative Push the Mode Select button to select strobe operation 2 Point the light beam at a rotating device 3 Use the trigger button to increase or decrease the rate of the strobe flash 4 Begin increasing the flash rate of the strobe until you see a stopped moti
6. on view of the rotating device 5 Read the RPM of the rotating device on the back of the timing light Start at the lowest RPM available in the strobe function and increase the rate until you see a single image that has been stopped by the light For example if you are flashing the strobe light at a device that has 3 distinct fan blades you will see multiple blades stopped by the strobe Continue increasing the rate of the strobe until you see just 3 blades This will be your correct RPM Maintenance amp Service When cleaning the timing light use a cloth dampened with waterless hand cleaner DO NOT use solvents such as acetone and benzene which can be absorbed by and damage plastics Promptly remove penetrating oils gasoline and battery acid The Inductive Spark Pickup is a plug in replaceable lead It can be repaired or replaced if damaged Leave the Pickup latch Open when not in use The magnetic cores are made of ferrite ceramic and when kept apart they are less likely to break if the pickup is dropped There are no user serviceable parts inside the timing light Contact your tool dealer or consult other materials packed with the light for repair information Electrical Interference In the event that the unit is subjected to extreme electromagnetic conditions the display may appear to lock up Simply disconnect the power lead and reconnect to reset the unit Technical Support Questions or inquiries about service
7. ve been used differently than described in the printed instructions Please note that wear and tear on leads and replacement of consumable items such as NOx Sensors Oxygen Sen sors and paper is not covered by warranty GxT Inc s sole liability and buyer s exclusive remedy is limited to repair or replacement of the product as stated in the Limited Product Warranty THERE ARE NO OTHER WARRANTIES EXPRESSED OR IMPLIED INCLUDING THOSE OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE AND GxT INC SHALL NOT BE LIABLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING FROM THE SALE OR USE OF THE PRODUCT Some states do not allow limitations on the length of implied warranties nor exclusion or limitations of incidental or consequential damages so that the above limitations and or exclusion may not apply to you This warranty gives you specific legal rights and you may also have other rights which may vary from state to state Inductive Pickup around Spark Wire 12 Volt Battery Timing Advance Control Buttons Initial Timing Measurement Follow the engine service manual procedure or the emission control label in the engine compartment Not all engines can be adjusted For engines with fixed timing you can determine the operational status of the timing system Vacuum Advance or Retard Measurement Vacuum actuators connected to the distributor or intake manifold sensors vary the timing according to engine vacuum To measure dis
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