6.7L upper oil pan gasket

Cmore Mechanic Connecticut Posted   Latest  
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Drivetrain
2016 Ford F-350 Super Duty XLT 6.7L (T) 6-spd (6R140) — 1FT8W3DT5GEC52704
Oil Leak

Going to be helping my son replace his upper oil pan gasket this weekend. Just looking for any advise/tips from anyone who has done one before. Thanks in advance.

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Austin Owner/Technician
Pennsylvania
Austin
 

Do the front cover, rear cover and rear main seal at the same time. Borrow/buy the installer tools for the front and rear crank seals. Theyre great engines but they leak like sieves

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James Mobile Technician
Kansas
James
 

Buy a case or 2 of autozone brake cleaner, make sure everything a seal/gasket touches is clean especially where block and pan meet cause if u dont it will still leak especially in the rear back corners, their is very few cheap cleaners i trust, and it dont leave a oily residue like oriellys cleaner does, these are the biggest mistakes alot of ppl make

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Laura Owner/Technician
Texas
Laura
 

Not exactly a weekend job. 9.2 hours. It can be done but…. Remove the transmission to make it easier.

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Austin Owner/Technician
Pennsylvania
Austin
 

Ford also has a lower seal kit with everything you need minis the vacuum pump gasket I think the kit is about $100. But yea its about 12hrs total. I use to do just the pans/rear main but started having come backs when the front and rear covers started leaking shortly after

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Thanks
Matt Technician
Missouri
Matt
 

Replace the crankcase vent while you are at it! Crankcase pressure blows out the sealing.

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Jesse Technician
Texas
Jesse
 

Trans will need to be removed. There are no weep holes for oil to drain out of transmission bell housing. it will have 4-5 quarts of oil in the bell housing. Be careful with the dipstick going into the rear cover, they like to break. If you’re having major leaks from multiple seals, replace crank case filter. It’s clogged. Special service tool is recommended for rear crank seal. Make sure oil…

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Mike Instructor
California
Mike
 

As others have stated, not a weekend job and I would never do it without a lift. Sorry, you asked. :>)

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Thomas Owner/Technician
Texas
Thomas
 

What others advised plus use either the correct Ford sealant (Specifically for diesel applications and diesel impermeable.) or Permatex The Right Stuff black sealant. Oil dilution will always occur, and the sealant must be diesel fuel impermeable. Otherwise, it will dissolve the sealant bond and you'll back to square one.

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Jon Owner/Technician
California
Jon
 

Most leaks that I encounter on this engine are from the vacuum pump coming loose. It will look like a front main seal leak or a front cover leak and its not - its the pump seal leaking because the bolts have backed out. So - check that before you dive in too deep.

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Cmore Mechanic
Connecticut
Cmore Resolution
 

Ok, thanks for all the replies. Job got bumped up one week so letting you know how I made out. Friday night got the trans out, coolant and oil drained. Saturday spent most of the day doing the oil pan. What a pain getting cleaned for the sealer. Wanted to replace oil pick-up tube o-rings while we had the pan off, pulled it out and it only had 1 o-ring on it, hmm? Repair link and other dealer…

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