Delphi Multec 3.5 User Manual

Multec 3.5 Fuel Injector Application Manual Recommendations and Precautions
Delphi Energy and Chassis Systems
Revision: 11/05-1 7-3
• Injector tip leakage may increase due to excessive wear of the ball seat
sealing surfaces.
7.2.1 Injector Characteristics
Multec 3.5 injector field durability flow shift limits are available for each
injector model on the Injector Outline Drawing available from Delphi.
These limits are based on the application’s fuel usage and operating
environments.
7.3 Wear and Contamination
7.3.1 Internal Corrosion
Water, salt, oxygen, alcohol, heat and stagnant conditions promote
galvanic and pitting corrosion on the surface of injector components.
Corrosion can adversely affect injector operation in the following ways
1. Corrosion particles between the ball and seat can damage the seat
interface or cause the injector to “stick open” or leak.
2. Corrosion on bearing surfaces will increase friction and cause flow
shifts (typically rich).
The Multec 3.5 Fuel Injector is manufactured with stainless steel, which
has good corrosion resistance.
7.3.2 External Exposure
Injectors must maintain all functional parameters and remain visually
acceptable after intermittent external exposure to:
• Gasoline • Isopropyl alcohol
• M5 or E15 • Water or steam
• Stoddard solvent • Salt spray
• Peroxide test fuel • Dust
• 50% high aromatic fuel • Ozone
• Gas line anti-freeze • Brake fluid
• Automatic Transmission Fluid • Engine Coolant
• Windshield Washer Fluid • Motor Oil

Delphi Multec 3.5 Specifications

General

Brand	Delphi
Model	Multec 3.5
Category	Laboratory Equipment
Language	English