95-97 and 98-03 special tools

jbarnett31 · March 18, 2010

hey guys i just came to another shop and they have not had a diesel tech here ever and i cannot find any of the special tools i need to block off the high pressure oil system on a 7.3. I was wondering if anybody could get me the ford or otc part numbers so i can order the high pressure oil system tools. I have looked everywhere and can not find them. If anybody can help i would apprieciate it.

Keith Browning · March 18, 2010

What year specifically? The very early trucks had threaded oil hoses which were replaced by snap to connect fittings for 96(?) engines. The STC fittings require the line disconnect tool and the adapter cable is need for all engines.

[*]ICP/EBP Adapter Cable D94T-50-A

[*]Oil High Pressure Leakage Test Adapter Set D94T-6600-A

[*]Oil High Pressure Leakage Test Adapter Set 303S626

[*]High-Pressure Line Disconnect Tool 303-625

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Bruce Amacker · March 19, 2010

You can do most HP oil checks using a $3 fitting from your local hardware store or Napa. The Napa (Weatherhead) PN is 7897 if you want to wait for it, or go to your local True Value/Ace hardware and get a 5/16” inverted male thread adapter to 1/4 female tube. To verify you have the right fitting, take a 1/2" NF nut with you and the male part of the fitting will screw right into it. Thread is ½” NF with an o-ring, and may be in the brass hardware area, or may be in the nut&bolt area in one of those little sliding drawers. If you don't have an o-ring available, you can use it dry and it will only seep while running, or use an oil drain plug gasket on it. I just bought another one a few weeks ago so I know they're available.

This fitting can be used in two ways- to adapt a (3000-5000PSI)pressure gauge into the head for reading live pressure, or for adapting an air line to the head for air checking. For live PSI testing, remove a HP plug from the head (5/8" hex IIRC), on the right side thread the third one back is very accessible. On the left head the front one has the ICP in it, the second plug is relatively accessible, and the third plug has the HP oil hose in it. I know I have pics of this fitting somewhere with my gauge, but I can't find them.

A slide from my class:

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