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I thought i had a pedestal leaking onto manifold. After degreasing everything up there, the boot clamps were not tight enough, so i tightened them both and no more oil is pooling onto manifold. It does appear some oil is still coming from rear main seal? is this normal for these engines with 200k miles?
I was always told if a 7.3 stops leaking then it's time to add more oil lol. If your boots are leaking, riffraff has a very reasonably priced set that look great and work awesome. I just replaced mine due to leaks and I went from 12 lbs of boost max to 22lbs max. Well worth the money.
as far as the rear main, I am fairly certain it is a relatively common item to leak. Mine has over 300k miles and my rear main leaks a little. Not enough to puddle or spot the driveway, but enough to make the underside of the truck oily. I'm sure someone more knowledgeable than me will chime in here soon though!
Before tightening clamps, oil would pool up on manifold and it would drip out and run down and make me think it was a rear main, after tightening and cleaning area, no more oil on manifold, but a small amount will drip from weep hole in torque converter area. What is the name and purpose of the part on head that the lower boots from pedestal attaches to, because it appears mine have been removed or replaced because i see gray RTV all around both heads.
Thats it, exactly! Why would that have a need to be removed? I know nothing about the history of this truck, but it looks like they took good care of it mechanically.
The plenum opening where the book goes is very easily crushed if the clamps are over tightened. There are billet inserts available to keep from crushing it. Perhaps it was damaged before and they had to replace it? Can't really think of any other reason to remove it. Not necessary to remove for cups, injectors, turbo, or really any other general maintenance type items. Are your boots and clamps factory original? The factory plenum clamps are worm gear clamps, not t-bolts. It it has t-bolts then the above scenario is way more likely
The rear main seal is NOT a common leak on the 7.3. What is more common is oil leaking into the valley and then going down a drain hole in the rear of the valley on the passenger side.
You can see where the drain hole is on my truck in the picture below. A friend of mine was replacing the clutch and installed a copper tube in order to keep oil off the clutch and flywheel.
Not saying your rear main is not leaking, but typically the leak is something else.
The rear main seal is NOT a common leak on the 7.3. What is more common is oil leaking into the valley and then going down a drain hole in the rear of the valley on the passenger side.
You can see where the drain hole is on my truck in the picture below. A friend of mine was replacing the clutch and installed a copper tube in order to keep oil off the clutch and flywheel.
Not saying your rear main is not leaking, but typically the leak is something else.
I have not looked inside the plate that weep hole is at, to see where leak is coming from.
What Sous said about the rear main. A "rear main oil leak" is probably the most commonly misdiagnosed issue on the 7.3. As he mentioned it is possible but not likely.
I keep waiting for Sous to post a parts list on that copper tubing setup for us
That is a SkySkiJason mod brother. When he was nice enough to take our truck in when we had clutch chatter issues, he did the mod on his own. I was not even aware of the mod, but was very grateful. We tipped him nicely when we picked the truck up to show a little more gratitude than just saying thanks and a firm handshake.
The mod makes sense though. It will help keep oil and crap off the parts of the truck that do not like to have oil and crap on them.
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