Rear main seal??
Logistics Pro
Joined: Jun 2003
Posts: 3,921
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Yes, you can do it without removing the trans. It is a two piece seal. If it hasn't been replaced, it will be a rope type seal. Replace the rope type seal with a two piece Fel-Pro rubber seal. It's also not necessary to "drop" the crank down a little by loosening other main caps.
Elder User
Joined: Feb 2010
Posts: 536
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From: Thomaston, GA
Yes, you can do it without removing the trans. It is a two piece seal. If it hasn't been replaced, it will be a rope type seal. Replace the rope type seal with a two piece Fel-Pro rubber seal. It's also not necessary to "drop" the crank down a little by loosening other main caps.
Fleet Owner
Joined: Jun 1999
Posts: 24,552
Likes: 74
From: Creedmoor, North Carolina
Rear main seals on FEs get blamed for leaking when it's not. Valve covers & intake manifolds are notorious for leaking, while having air flow push the leaking oil down the back and the ol rear main gets blamed.
I just had this reinforced on my truck this year when it took 3 gasket attempts on the drivers side to get it stopped. They leak bad bad too.
If your truck has a C6 pull the inspection cover and look at the seal area, most times it will be dry.
FE rear mains can leak but rairly do.
John
I just had this reinforced on my truck this year when it took 3 gasket attempts on the drivers side to get it stopped. They leak bad bad too.
If your truck has a C6 pull the inspection cover and look at the seal area, most times it will be dry.
FE rear mains can leak but rairly do.
John
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Senior User
Joined: Dec 2002
Posts: 473
Likes: 0
From: SW Florida
Also make sure the PCV system is working correctly; these motors need to have something to relieve the pressure so they aren't pushing oil out everywhere.
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Senior User
Joined: Sep 2009
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I did the whole top end not to long ago and it's dry up hi. The front 3/4 of the oil pan is dry too. The 360 smokes a good bit when cold and choked but cleans up after a little bit. I'm loosing about a quart of oil for every 1/3 tank of gas. I am a fan of the skinny pedal so I am hard on it. I have a 4spd so I'll pull the lower bell cover and take a look befor I commit to changing the rear main.
The bottom end is pretty warn out. I'll be throwing bearings and a high volume oil pump in there next weekend. I would like to get some more life out of the old 360 befor I'm forced to throw a ton of $ at my 460. I want to build it right and not rush it with cheep parts.
The bottom end is pretty warn out. I'll be throwing bearings and a high volume oil pump in there next weekend. I would like to get some more life out of the old 360 befor I'm forced to throw a ton of $ at my 460. I want to build it right and not rush it with cheep parts.
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Senior User
Joined: Sep 2009
Posts: 384
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Hence why it's the last thing on my list for this motor.
I have been contemplating cutting out the x-member ant building a new better one. I hate dumb designs. It's a mess to change the oil too so a new x-member sounds good to me.
I have been contemplating cutting out the x-member ant building a new better one. I hate dumb designs. It's a mess to change the oil too so a new x-member sounds good to me.
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Dec 16, 2002 01:54 AM