Aston Martin High Torque Gear Reduction Starters (1.9HP)(This starter replaces the Lucas number 25677 starter, used in sixties Aston Martins, DB4 5,6.)
General Information:
Gear Ratio
The gear ratio of the starter is 4.44:1 which enables the starter to develop its unique torque values.
Bearings vs. Bushings:
The Hi-Torque starter is equipped with five (5) full roller bearings while the typical Lucas unit uses two (2) bushings to suspend the armature.
Solenoid Design
The design of the Lucas solenoid is very susceptible to Hot Start Syndrome. The windings of the solenoid are encapsulated in steel. There is no means for the heat to dissipate. The solenoid of our Nippon Denso Hi-Torque Gear Reduction starter is encased in aluminum. Our solenoid is equipped with a vent hole. Every time it is engaged, it pushes (pulls) cooler air into the solenoid area thus virtually eliminating the Hot Start Syndrome.
Technical Data
No load condition @ 11.5 volts
Max current (amps) - 90 or less
Minimum speed (rpm) - 3000 or more
Load condition
8.0 volts are minimum voltage requirements
Torque - .65 kg-n
Maximum current (amps) - 250 or less
Minimum speed (rpm) - 1180 or more
Lock test
Voltage - 2.5v (at least 7:1 CR)
Max current (amps) - 300 or less
Minimum torque (kg - n) - .7 or more
Specifications
Voltages - 12v
Output - 1kn
Rating (seconds) - 30 seconds
Torque rating - 535 ft. lbs
NOTE: Torque rating is based on a 9 tooth pinion gear.
Solenoid Bypass Instructions
Solenoid Bypass instructions:
Many of you own cars that came with an external solenoid for use when starting the car. It is usually mounted on the firewall or on the side of the engine bay. The use of this solenoid may still be retained by following these easy instructions:
Our Nippondenso starter has two electrical terminals on it. This starter may be used in both positive and negative ground cars so, I will refer to the terminals as the "big" terminal and the "little" terminal so as not to confuse you. The big terminal has the nut on it while the little terminal( solenoid terminal) has a shielded black cover over a small male (spade) push terminal. With a 4 inch piece of wire(14 or 16 gauge will do) connect these two terminals together.
To do this you will need to buy a female connector to crimp on one end of the wire (goes to the small terminal) and a ring connector for the large terminal. That is all there is to it! If this just confused you, please give us a call or drop us an email. We'll be happy to assist you.
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