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[joshmcoley]

This is how to repair the plug that is on the bottom of the HPOP (the plug that you have to remove the HPOP to get to). This plug is listed in the service manual as "non-serviceable"/"do not remove".

After tracking down the leak on my HPOP, I found it to be the plug on the bottom that is not serviced in any of the kits that I read about. After hearing the horror stories about people trying to repair this leak only to have the threads strip out or the HPOP not build pressure afterwards, I made a trip to the local International dealer. I was able to speak with a very knowledgable service guy that informed me that there is indeed a service kit for this problem. He stated that the DT466 I-6 engine uses a very similar HPOP and there was actually a recall that addressed this issue. The recall was only for the I-6 though so that is why many people wouldn't know about it. He took me back and showed me how to fix the problem and while I was there I picked up the repair kit that has the instructions,new plug, o-ring, and loctite (the kit contains extra parts that aren't used on the 7.3 HPOP). The part # for this kit is 1842906C92. I would scan the instructions but I do not have a scanner, sorry. The instructions basically state that the plug should be heated before removal whch should reduce the chances of stripping out the threads. Also, before any plug is removed, the HPOP should be positioned straight up and down with the machined face down and the snap ring end up so that the "ferry plug check ball" is not disturbed. I hope this helps alot of people that don't want to/can't pony up the money for a new pump.