Pedestal O-rings - Ford Powerstroke Diesel Forum
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Old 12-29-2010, 07:33 AM
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Pedestal O-rings

Hey guys, I've had a persistent drip from the back of the motor, pressure washed the valley out and it seems to be the pedestal o rings. I have all 4 o rings and the exhaust gasket. Is there anything I should know before I start pulling the turbo? Anybody have any helpful hints? What is a reasonable time frame to set aside for changing these? Thanks for the help
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Old 12-29-2010, 11:08 AM
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well wile you there id plug your ebpv actuator in the pedestal and the back bolt on the driver sid is a pita to get to.
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Old 12-29-2010, 12:12 PM
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which back bolt? for the pedestal? and how did ya get the bottom passenger nut off the exhaust up pipe to the turbo? how does the turbo attach to the pedestal?
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Old 12-29-2010, 06:24 PM
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The pedestal and turbo come off as one ,to get the nut off you are asking about you need to take the exhaust back pressure butterfly valve off of the exhaust housing 3 8mm bolts then you can get at the bottom nut on the exhaust flange the back drivers side ped bolt is nasty to make things easier use a 10mm 1/4" drive swivel socket with several extensions you will know exactly what I mean when you get to it without this socket you will be there for hours.
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Old 12-29-2010, 07:54 PM
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well i managed to get the exhaust flange bolts/nut out w/o removing the EBPV...used a 15mm crows foot...and yeah that driver's side pedestal bold was a pita...but i got it all put together and it leaks worse now than before...so i pulled if off and glued the orings in...they were movin on me...and we'll get back to it in the morning...hopefully i just didn't have things quite tight enough
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Old 12-30-2010, 01:04 PM
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yup 15mm crows foot. you do not have to take off the up pipe Y pipe.

and its stupit, our turbos are conected to the pedestal with bolts in the bottom of the pedestal. the newer body style 7.3 have the turbo attached using bolts going from the top of the turbo duwn to the pedestal; easy turbo removal.

what O ring was moving?
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Old 12-30-2010, 01:08 PM
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both the orings from the pedestal to the block, used some 3m contact cement or something to glue them down overnight, put it all back together this morning and am keeping my fingers crossed for no more leak...couldn't visually see it anymore at least
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Old 12-30-2010, 01:14 PM
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i would use greese or vaseline because i know that will come out in your next oil change. idk about what your using. they should stay in the O ring groove in the block...
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Old 12-30-2010, 11:46 PM
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yeah, this was like weatherstrip adhesive but a high temp sort of thing, anyways i'm changing oil within the next few days...thanks for the help
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