Installation On The Engine - Delphi Multec 3.5 Applications Manual

Multec 3.5 Fuel Injector Application Manual

Installation on the Engine

6.5
Lubrication
Caution:
Fuel rail
Warning :
Delphi Energy and Chassis Systems
Figure 6-2 Injector Installation Surface
Follow these guidelines to prevent damage to the injector and its electrical
interface during the build process.
• Apply a light coating of lubricant to the lower injector seal ring. ISO
10 light mineral oil or equivalent is recommended. (See Table 6-2)
Additional lubricants can be evaluated by Delphi for injector sticking
and corrosion and added to the approved listing.
• The preferred technique is to apply the lubricant to the sockets the
injectors are being installed into, rather than directly to the seal ring
itself. This will help minimize the possibility of injector
contamination.
• Avoid applying lubricant over the director plate holes – this may
restrict injector flow. Do not dip the injector tip in lubricant.
• Rock the rail back and forth to seat the assembly.
• The maximum injector axial loading shall not exceed 800N.
• Never hammer down on the fuel rail to install it.
Take extra care when Take extra care when
installing new seal ring installing new seal ring
over flange at injector over flange at injector
inlet inlet
45 deg. surface for 45 deg. surface for
injector to rail installation injector to rail installation
loading – Do not load loading – Do not load
injector tip. injector tip.
Product Handling
Revision: 11/05-1 6-5