I need timing information for installation of a new injector pump for a 1986 Ford F-350 6.9L Diesel. Can anyone help?

 

Hi,

Injection pump timing....hm, there are two diffrent ways to do that:

Static Timing and dynamic timing.

Staic timing:
Remove the fast idle bracket and the solenoid from the infection pump.
Useing the Ford Pump mounting wrench T86T-9000-C or equivalent to loosen the three nuts that attached the pump to the engine.
Using the Ford Rotation tool or equivalent to turn the pump until the timing mark algins with the mark on the housing. Remove the tool and tighten the pump nuts. Recheck the timing mark to verify that they are still aligned.
einstall the bracket and the solenoid.

Note: The pump must be static timend to get the engine running. Once the engine is assembled and running, the engine should be dynamically timed ( with the engine running)

For dynamic timing you need some special tools and I suggest to do that in a Dieselshop. Do you want to make it by youself, please ask again and I ll post also the dynamic procedure.

Jens

 

Yes, thank you, and I would like the dynamic timing info as well. I need the timing procedure for the installation of a new injector pump.

 

Here are some infos for the dymamic timing:

Dynamic timing

Note: Diesel engines are very sensitive to slight changes in timing, and dynamic timing is more accurate than static timing. Although the dynamic timing procedure is not extremely difficult, the procedure requires several expensive tools. If you don 't have ready access to these items, we recommend you take the vehicle to a dealer service department or diesel specialist for dynamic timing.

1. Obtain a fuel sample and check the cetane value using Ford Rotunda Tool no. 078-00121 supplied with Ford Rotunda Tool no. 078-00200 or equivalent (6.9l_ engines only). Cetane value is determined by measuring the specific gravity {desity) of the fuel with the fuel temperature between 75 and 95-degrees F. Poor quality fuel can affect diesel engine performance. Check the cetane value as follows:
a) Fill the hydrometer Container with fuel until the hydrometer floats.
b) Gently spin the unit to break surface tension. Read the number at the Iowest point of the fuel level in the hydrometer. Record the number and refer to the cetane value conversion chart.

Hydrometer Reading Getane Value
.837 50
.846 47
.849 46
.858 43
.862 42
.876 38

Fuel hydrometer reading-to-cetane value conversion chart


2 Run the engine to bring it up to normal operating temperature (192 to 212-degrees F). Note: Temperature is critical to obtain accurate timing.
3 Stop the engine and install a Dynamic Timing Meter (Ford Rotunda no. 078-00100 or equivalent for 6.9L engines, or no. 078-0020 for 7.3L engines), by placing the magnetic pickup in the hole on the timing pointer scale. Insert the pickup until it almost touches the Vibration damper. Note: To ensure accurate readings, clean the damper and remove any rust.
4 On 6.9L engines, disconnect the glow plug from the number one cylinder using Ford tool no. D83T-6002-A or equivalent. Install the luminosity probe and tighten it to 12 foot-lbs. Install the photocell over the probe.
5 On 7.3L engines, connect the clamp of the Timing Meter Adapter (no. 078-00201, or equivalent) to the pressure line sensor on the injector nozzle (no. 1 on F-series, no. 4 on E series).
6 Connect the dynamic timing meter to the battery and dial in 20-degrees of offset on the meter. Unplug the cold Start advance solenoid connectorfrom the solenoid terminal. Caution: Keep the wiringawayfrom the drivebelts.
7 With the transmission in Neutral and the rear wheels raised off the ground, startthe engine. Using Ford Rotunda tool no. 014-00302 or equivalent, set engine speed to 1400 rpm (6.9L) or 2000 rpm (7.3L) with no accessory load. Observe injection timing on dynamic timing meter.
8 Using jumper wires, apply battery voltage to the cold start advance solenoid terminal to activate it. Note: Activating the cold Start advance solenoid can result in engine speed increase. Adjust the throttle control to maintain 1400 rpm (6.9L) or2000 (7.3L) (if necessary).
9 Check the timing. The timing should be advanced at least 2.5-degrees on 6.9L engines or 1 -degree on 7.3L engines before the timing obtained in Step 7. If the advance is less than 2.5-degrees, replace the fuelinjection pump top cover assembly.
10 On 6.9L engines if the dynamic timing is not within 2-degrees of specification (see Illustration), adjust the pump timing. On 7.3L engines, it should be 8.5-degrees BTDC (before top dead center), plus-or-minus 2-degrees.
11 Shut the engine off and note the timing mark alignment. Remove the fast idle bracket and solenoid from the injection pump. Slightly loosen the injection pump mounting nuts with Ford tool no. T86T-9000-C or equivalent.
12 Install the pump rotating tool (Ford no. T83T-9000-C or equivalent) on the front of the injection pump. Rotate the pump clockwise (when viewed from the front) to retard the timing and counterclockwise to advance it. If necessary, tap the tool lightly with a soft-face hammer if the pump sticks.
Note: Two degrees of dynamic timing is approximately 0.030 inch of timing mark movement.
13 Remove the rotating tool and tighten the pump mounting nuts securely. Start the engine and recheck the timing. Repeat the procedure äs necessary until timing is within one degree of Specification.
14 Turn the engine OFF and remove the test equipment. Install the glowplugs äs described in the Electrical System portion of this Chapter.
15 Run the engine and check for power and smoothness.

have fun

Jens

 

Injector Pump Shaft is broken. Request procedure to re-time new pump to engine.

 

Hi,
to re-time the new pump to the engine turn the crankshaft by using a breaker bar and a socket until the #1 piston is at top dead center on the compression stroke.
When the cranksaft is positioned correctly, the injection pump drive gear dowel will be in the four O'clock position and the scribe line on the vibration damper should be at TDC. Also the "y" marks on the pump gear should align with the "O" marks on the crankshaft and camshaft gears. I think his is is not visible if you only remove the injection pump housing.

Jens

 

Thanks Jens, that's exactly the info I needed!

Philip

 

 

I've got a Rotunda diesel timing meter and would like to adjust dynamic timing on my 92 7.3L motor. The meter came only with a luminosity probe that replaces the glow plug. Is that correct for my motor or do I need the adapter that senses line pressure? I hooked it up to see if it worked and got numbers on the screen but it made no difference if the gray luminosity probe wire was attached or not. Also, should the angle dial be turned all the way down to the stop? What is the purpose of this dial? Thanks much in advance.

John near Detroit

 

I have a 93 f250 with the 7.3Idi I need to replace the injection pump how do i remove the old unite please help

Jake

 

Philip, If you have not already removed the pump gear housing, Do not remove it. Instead pull the cover plate off of the front of the pump gear housing, to expose three 12 point bolts. Remove those bolts, and the pump will come off of the gear without removing the cover. As long as that cover stays in place the gear will not lift up enough to un-mesh with the cam gear. You can install your new pump in reverse order of removal, by lining up the dowel in the gear with the slot in the pump. If your timing gear cover has been removed, see the sticky at the top of the main page titled "Top dead center mark?"

Dynamic timing is done with either a luminosity probe, or a feret meter, which is the method most common with the shade tree mechanics here. Timing by ear is usually not a reliable method. You either need to find someone with the proper equipment, which is nearly impossible these days, or buy it and do it yourself. Post your location and maybe a member will help you out. If you are near Denver I can do it for you. The meter and necessary induction timing light run around 250 to 350 bucks depending on where you buy, and what timing light you decide to go with. Here are a couple videos of how it is done:



Smokestack,

There is a thread with pump changing instructions here somewhere. I'll see if I can find it for you.

DO NOT REMOVE THE COVER WITH THE INJECTION PUMP.

Good luck,

Mac.

 

Ha ha, just noticed the original date of this post! No wonder I had never heard of those two.

Here you go Smokestack:

IDI Fuel Injection Serviceing

Mac.

 

wow,whatcha find here Mac?
man,this makes me miss my mt480 a little again.
your vids remind me how nice it is to have reliable new tools though.far more important than nostalgia.

 

I really need to do the dynamic timing on my van. Ever since I did my pump, all I did was line up the marks, and been running it like that. Put over 4k on it to in the 3 months I drove it with the new pump.