Rear main seal leak...Need some help!
#1
Rear main seal leak...Need some help!
I've tried searching but there isn't much info on here about what is needed and how to go about replacing it. I made the mistake of putting in Synthetic oil for the first time ever atleast since I've had it and I'm pretty sure thats when the leak started getting reall noticeable. I've been adding oil once a week for the last 2 months but its gotten old quick... Could anybody help me out on some info as to how to replace it? And if its either a 2 bolt main or a 4 bolt main? I've been priced $500-600 at 3 shops and there's no way I'm going to spend that much to get a $15 part put on. Any help would be great!
And some pics cause who doesn't like pics:
And some pics cause who doesn't like pics:
#2
Wow anybody?? I did some searching outside of R-F but still didn't find much. I did read somewhere that You don't want to buy a seal at advance or autozone or any place like that and that buying one from the dealer is the best bet because you won't have any future problem with leaking like you could with one at one of those stores? So I found the part number for the Main Seal sold at the dealership and picked it up there. Does this look correct?
Is this all I'm going to need to replace the seal or is there other things that I'm going to need? Also I heard its a smart thing to replace the oil pan gasket while I'm doing this? thoughts?
Is this all I'm going to need to replace the seal or is there other things that I'm going to need? Also I heard its a smart thing to replace the oil pan gasket while I'm doing this? thoughts?
#3
#4
Thanks John. My friend is going to help me and he's pretty good at working on cars/trucks. Do you you really have to drop the transmission? I thought you could just move it back enough to be able to get the old seal off and new one on. I've always used the high mileage oil but never really thought of adding heavier oil to slow the leak. I put in 5w-30 because of winter and it being thinner, would 10w-30 oil be heavy enough to use or is there one that is a little heavier than that that would be more preferred?
#5
Im pretty sure you have to drop it, not positive though. might almost be easier to drop it just to make sure your not causing more work for yourself, if the other way isn't a sure fire thing.. I know there's a few vids floating around on removing the transmission (for slave cylinder replacement). for auto trans you will need a special key tool to remove the torque converter. ($20 I believe)
I think something closer to 50w would be your best shot at slowing the leak that way. but it sounds like your a bit past that stage where something like that will do much for you.
I think something closer to 50w would be your best shot at slowing the leak that way. but it sounds like your a bit past that stage where something like that will do much for you.
Last edited by RangOH; 12-24-2010 at 03:28 PM.
#6
#9
haha I'm leaking oil out of my oil filter flange to...I was told thats an easier fix than the main seal, we'll see. And thanks!
#10
Tranny replacement
Hey all! First post.
Me and a buddy are working on his 94 manual tranny 4x4 Ranger XLT replacing the transmisson. We are halfway through the job and are thinking about replacing the rear main seal while we have it gutted.
I haven't pulled the flywheel yet and I'm wondering how much work it is to change the rear main seal. On my old F150 with a 390 you had to pull the oil pan. Is that the case on the Ranger too?
Another thing...nobody seems to have the gasket that goes between the transmission and the transfer case. There's a paper one there that got destroyed when we pulled out the transfer case and I'm reluctant to put it back together without one.
Sorry...I don't mean to thread-jack. Let me know of I'm out of line and I'll start my own thread.
If I can contribute something to the tranny pulling topic...I had what I thought was a pretty clever idea when I needed to pull the bell housing bolts. You are supposed to put a jack under the transmission but this makes it a lot harder to work because you are trying to reach all the bolts. I came up with the idea of putting a strap (motorcycle tie down, in my case) around the transmission and then feeding it up through the stick shift hole in the floor of the cab. I put a 2x4 over the hole and cinched up the strap. It held just great and I had plenty of room to work. Then it was just a matter of putting the jack under the tranny and releasing the strap.
Anyway...hope that helps someone.
Me and a buddy are working on his 94 manual tranny 4x4 Ranger XLT replacing the transmisson. We are halfway through the job and are thinking about replacing the rear main seal while we have it gutted.
I haven't pulled the flywheel yet and I'm wondering how much work it is to change the rear main seal. On my old F150 with a 390 you had to pull the oil pan. Is that the case on the Ranger too?
Another thing...nobody seems to have the gasket that goes between the transmission and the transfer case. There's a paper one there that got destroyed when we pulled out the transfer case and I'm reluctant to put it back together without one.
Sorry...I don't mean to thread-jack. Let me know of I'm out of line and I'll start my own thread.
If I can contribute something to the tranny pulling topic...I had what I thought was a pretty clever idea when I needed to pull the bell housing bolts. You are supposed to put a jack under the transmission but this makes it a lot harder to work because you are trying to reach all the bolts. I came up with the idea of putting a strap (motorcycle tie down, in my case) around the transmission and then feeding it up through the stick shift hole in the floor of the cab. I put a 2x4 over the hole and cinched up the strap. It held just great and I had plenty of room to work. Then it was just a matter of putting the jack under the tranny and releasing the strap.
Anyway...hope that helps someone.
#11
#12
Hey all! First post.
Me and a buddy are working on his 94 manual tranny 4x4 Ranger XLT replacing the transmisson. We are halfway through the job and are thinking about replacing the rear main seal while we have it gutted.
I haven't pulled the flywheel yet and I'm wondering how much work it is to change the rear main seal. On my old F150 with a 390 you had to pull the oil pan. Is that the case on the Ranger too?
Another thing...nobody seems to have the gasket that goes between the transmission and the transfer case. There's a paper one there that got destroyed when we pulled out the transfer case and I'm reluctant to put it back together without one.
Sorry...I don't mean to thread-jack. Let me know of I'm out of line and I'll start my own thread.
If I can contribute something to the tranny pulling topic...I had what I thought was a pretty clever idea when I needed to pull the bell housing bolts. You are supposed to put a jack under the transmission but this makes it a lot harder to work because you are trying to reach all the bolts. I came up with the idea of putting a strap (motorcycle tie down, in my case) around the transmission and then feeding it up through the stick shift hole in the floor of the cab. I put a 2x4 over the hole and cinched up the strap. It held just great and I had plenty of room to work. Then it was just a matter of putting the jack under the tranny and releasing the strap.
Anyway...hope that helps someone.
Me and a buddy are working on his 94 manual tranny 4x4 Ranger XLT replacing the transmisson. We are halfway through the job and are thinking about replacing the rear main seal while we have it gutted.
I haven't pulled the flywheel yet and I'm wondering how much work it is to change the rear main seal. On my old F150 with a 390 you had to pull the oil pan. Is that the case on the Ranger too?
Another thing...nobody seems to have the gasket that goes between the transmission and the transfer case. There's a paper one there that got destroyed when we pulled out the transfer case and I'm reluctant to put it back together without one.
Sorry...I don't mean to thread-jack. Let me know of I'm out of line and I'll start my own thread.
If I can contribute something to the tranny pulling topic...I had what I thought was a pretty clever idea when I needed to pull the bell housing bolts. You are supposed to put a jack under the transmission but this makes it a lot harder to work because you are trying to reach all the bolts. I came up with the idea of putting a strap (motorcycle tie down, in my case) around the transmission and then feeding it up through the stick shift hole in the floor of the cab. I put a 2x4 over the hole and cinched up the strap. It held just great and I had plenty of room to work. Then it was just a matter of putting the jack under the tranny and releasing the strap.
Anyway...hope that helps someone.
as for the tranny tie down, that sounds like a neat idea, i usually just curse and complain when i have to have a jack under it. gonna have to give it a try.
#13
you can always use RTV for the gasket. i dont know about the oil pan thing, i don't think you have to, but i could be wrong.
as for the tranny tie down, that sounds like a neat idea, i usually just curse and complain when i have to have a jack under it. gonna have to give it a try.
as for the tranny tie down, that sounds like a neat idea, i usually just curse and complain when i have to have a jack under it. gonna have to give it a try.
It looks like the crank is not very well centered in the seal. Is that normal or is it indicative of a bigger problem?
I found another thread where a guy said you have to get the gasket from the Ford dealer. Really bizarre but OK.
One last parts complaint...is it just me or does it seem odd to anyone else that parts for this are hard to come by? This is my buddy's truck so he's been gathering the parts. He had to go to a several different parts houses to find exhaust gaskets, clutch kit, rear main seal (which was only available in a kit with the front seal), slave cylinder, etc. For a rig that is so common and hasn't changed for over 10 years, you'd think there'd be a lot more parts in stock than there are.
As far as the tranny bolts go...ain't it fun reaching those two up on top? I wonder how often designers utter the phrase "I'd hate to be the guy who has to work on this."
Ok...enough whining for today. At least until I'm back under the truck in the 36 degree garage. At least I have a clean dry place to work and can just close the door and go inside when I'm cold.
Have a great day and thanks for the reply.
#14
Most posts will caution you about gouging or nicking the crankshaft. With obvious good reasons.
The best way I found (Thanks to many other posts) was:
1. Remove tranny, clutch (if new keep it...old replace it), fly wheel (resurface or replace).
2. CAUTION! DO NOT SCRATCH OR GOUGE Crank Shaft! On the OUTSIDE hard edge AWAY from the Crank Shaft punch a "small" hole in the old GASKET to screw in a large head metal screw.
3. Use a Claw Hammer and pry the old seal out.
TO INSTALL
1. Clean the area to receive the new Rear Seal.
2. Lightly lube new seal with good oil.
2. GENTLY Tap it in. a 4" PVC Clean out plug (any hardware store) fits perfectly.
Thanks again to all posts...Semper scouting
The best way I found (Thanks to many other posts) was:
1. Remove tranny, clutch (if new keep it...old replace it), fly wheel (resurface or replace).
2. CAUTION! DO NOT SCRATCH OR GOUGE Crank Shaft! On the OUTSIDE hard edge AWAY from the Crank Shaft punch a "small" hole in the old GASKET to screw in a large head metal screw.
3. Use a Claw Hammer and pry the old seal out.
TO INSTALL
1. Clean the area to receive the new Rear Seal.
2. Lightly lube new seal with good oil.
2. GENTLY Tap it in. a 4" PVC Clean out plug (any hardware store) fits perfectly.
Thanks again to all posts...Semper scouting
#15
had mine changed a couple months ago 3 times in 2 weeks because the dumb mechanic i took it to didn't know how to put it in right. You have to have a press put it in. It Some tool that puts it in strait all at once. He taped it in a circle and every time within a day i had a puddle of oil under my truck and oil EVERYWHERE underneath the truck. And yes tranny has to be dropped. Just make sure who ever does it does it right because its a hassle not having your truck for a week. Good luck
#16
#17
I just did the rear main seal on my 93 Ranger 4.0 and read that same posts your were talking about saying
( The rear seal on the 4.0L has always been prone to leakage. It appears that the original factory finish on the seal surface was too slick, so the seal just couldn’t control the oil. Ford offers a repair kit that comes with a sleeve and a seal (p/n F5TZ-6701-A), but it costs about $50 at the dealership. Re-builders should definitely install a sleeve over the factory seal surface )
The part i got was exactly the same part you show in your picture but there was no way the metal sleeve was fitting I had to install with out the sleeve
How did you install yours where you able to install that metal sleeve ?
Any more leak issues since ?
( The rear seal on the 4.0L has always been prone to leakage. It appears that the original factory finish on the seal surface was too slick, so the seal just couldn’t control the oil. Ford offers a repair kit that comes with a sleeve and a seal (p/n F5TZ-6701-A), but it costs about $50 at the dealership. Re-builders should definitely install a sleeve over the factory seal surface )
The part i got was exactly the same part you show in your picture but there was no way the metal sleeve was fitting I had to install with out the sleeve
How did you install yours where you able to install that metal sleeve ?
Any more leak issues since ?
Wow anybody?? I did some searching outside of R-F but still didn't find much. I did read somewhere that You don't want to buy a seal at advance or autozone or any place like that and that buying one from the dealer is the best bet because you won't have any future problem with leaking like you could with one at one of those stores? So I found the part number for the Main Seal sold at the dealership and picked it up there. Does this look correct?
Is this all I'm going to need to replace the seal or is there other things that I'm going to need? Also I heard its a smart thing to replace the oil pan gasket while I'm doing this? thoughts?
Is this all I'm going to need to replace the seal or is there other things that I'm going to need? Also I heard its a smart thing to replace the oil pan gasket while I'm doing this? thoughts?
#18
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