7 3 Idi Injection Pump Timing Advance
If the advance is less than 1 degree replace fuel injection pump top cover assembly.
7 3 idi injection pump timing advance. Hi guys and gals. To advance the timing you have to turn the pump to the drivers side and to retard. Break torque keeping nuts snug on nuts attaching. Pre power stroke diesel 7 3l idi 6 9l idi timing advance results.
A walkthrough to what is involved with static retiming of a 7 3 idi injection pump. While looking at the engine it is turning clockwise therefore the injection pump is turning counter clockwise. If dynamic timing is not within 2 degrees of specification adjustment of pump timing is necessary. Helps engine starting.
Original timing was 5 6 btdc and engine cranked a long time at least in comparison to 6 9 before starting. This is one of the terminals on the top of the injection pump it should have a small red wire going to it. How to time your idi turbo idi timing 7 btdc na timing 10btdc. If you run a jumper to this solenoid you can selectively advance the timing a bit and see how.
Note timing mark alignment. 8 9 degrees btdc anything above these the engine get s pretty noisey. Remove fast idle bracket and solenoid from injection pump. The one with the larger red wire is the fuel cutoff solenoid this solenoid is energized through a temperature sensor and serves to advance the timing about 2 when the coolant is under 110.
Maybe this post will help others that are a little aprehensive about the timing on these or those that underestimate the timings duty. 6 9idi ford method. 5 1 5 degrees atdc 6 9idi navistar method. 6 7 degrees btdc 7 3 na.
8 9 degree btdc 7 3 idi turbo. Its been awhile since i posted on this forum as my 93 f350 crew dually has been running. Anyway the previous owner could not get the timing right so he sold the.