Go Back   Ford Truck Enthusiasts Forums > Performance, Engines & Troubleshooting > Small Block V8 (221, 260, 289, 5.0/302, 5.8/351W)
Sign in using an external account
Register Forgot Password?


Reply
 
 
 
 
LinkBack Thread Tools Search this Thread
  #1  
Old 10-05-2011, 12:24 AM
BadDogKuzz's Avatar
BadDogKuzz BadDogKuzz is offline
Posting Guru
 
Join Date: Dec 2010
Location: Gary,Indiana
Posts: 2,354
BadDogKuzz is a splendid one to beholdBadDogKuzz is a splendid one to beholdBadDogKuzz is a splendid one to beholdBadDogKuzz is a splendid one to beholdBadDogKuzz is a splendid one to beholdBadDogKuzz is a splendid one to beholdBadDogKuzz is a splendid one to beholdBadDogKuzz is a splendid one to behold
302 rear main seal or pan gasket leaks bad ??

I have a '89 F150 302/auto 98k miles on it and it doesn't get driven but a few times a years and I have a major oil leak coming from the rear main seal or pan gasket ? Is this a common problem ? And how hard is it to replace either of these. I am trying to sell this truck but the oil leak is scares people off. It runs great just leaves a puddle of oil everytime you go anywhere.
__________________
Ed PAA#121 "It's a sick world and I am a happy guy"
Blackie/E99 F350 Lariat CC DRW 216k: 4" MBRP,up&down pipes coated/wrapped, bellows, T500, Kuzz4R100, TruCool, CCV with catch can, 50cent, E99 turbo/1.0 w.g.turbine, T.M. wastegate, EBPV delete,470-ohm, hutch/harpoon, A/C shim, K&N, Smoked lights

'76 E350 DRW/26' Holiday Ramber 460 4bl C6 : Autometer gauges
Reply With Quote
  #2  
Old 10-05-2011, 01:30 AM
Pitcrw6's Avatar
Pitcrw6 Pitcrw6 is offline
Postmaster
 
Join Date: Apr 2010
Location: Panama City, FL
Posts: 3,537
Pitcrw6 has much to be proud ofPitcrw6 has much to be proud ofPitcrw6 has much to be proud ofPitcrw6 has much to be proud ofPitcrw6 has much to be proud ofPitcrw6 has much to be proud ofPitcrw6 has much to be proud ofPitcrw6 has much to be proud ofPitcrw6 has much to be proud of
Hey Ed, my dad has the same truck and his rear main seal is leaking also. Its been doing it for a couple years now. When it first started I did a google search on how to replace it and from what I remember it would have been better to take it to a shop that has a lift and let someone else to do it cuz the tranny had to be dropped. I was going to do it for him but Im tired of always crawling under the truck. Replacing the seal didnt seem to bad to do just didnt have a lift. Let me know what route you go.
__________________
PAA#128 / Rob-(02 F350 Crewcab 4x4 Longbed 7.3L) Banks Power Pack System w/tri-pilar gauges, Banks Power Elbow, Banks Turbo Back Exhaust, Banks Intercooler, Banks 1.0 housing, Banks WW Zoo-dad, HPx, FRx, CCV, AFE 6637, Hutch & Harpoon w/Dieselsite Fuel Filter, Trans, Oil, Coolant Bypass Filter, Billet Stat Housing, OCR, 6.0 Cooler,DP-Tuned Wifes-(02 Excursion Limited 4x4 7.3L) Banks Power Elbow, Banks Turbo Back Exhaust, Banks 6 Gun Programmer, Zoo-dad, HPx, FRx, CCV, AFE 6637, Hutch & Harpoon w/dieselsite Fuel Filter, Trans, Oil, Coolant Bypass Filter, Billet Stat Housing, 6.0 Cooler
Reply With Quote
  #3  
Old 10-05-2011, 01:49 AM
BadDogKuzz's Avatar
BadDogKuzz BadDogKuzz is offline
Posting Guru
 
Join Date: Dec 2010
Location: Gary,Indiana
Posts: 2,354
BadDogKuzz is a splendid one to beholdBadDogKuzz is a splendid one to beholdBadDogKuzz is a splendid one to beholdBadDogKuzz is a splendid one to beholdBadDogKuzz is a splendid one to beholdBadDogKuzz is a splendid one to beholdBadDogKuzz is a splendid one to beholdBadDogKuzz is a splendid one to behold
Hello Rob, I am hoping to hear from someone who has done this one. Honestly I just want to sell it. But if I don't get what I am looking for out of it I am going to have to fix it.
__________________
Ed PAA#121 "It's a sick world and I am a happy guy"
Blackie/E99 F350 Lariat CC DRW 216k: 4" MBRP,up&down pipes coated/wrapped, bellows, T500, Kuzz4R100, TruCool, CCV with catch can, 50cent, E99 turbo/1.0 w.g.turbine, T.M. wastegate, EBPV delete,470-ohm, hutch/harpoon, A/C shim, K&N, Smoked lights

'76 E350 DRW/26' Holiday Ramber 460 4bl C6 : Autometer gauges
Reply With Quote
  #4  
Old 10-05-2011, 05:31 AM
xlt4wd90 xlt4wd90 is offline
Postmaster
 
Join Date: Sep 2003
Posts: 4,576
xlt4wd90 is gaining momentum as a positive member of FTE.
I'm doing that to my 1987 Mustang right now in my garage. I can only spend weekends on it, so it's sitting on jack stands at this moment. After 20+ years, the cork gaskets on the oil pan shrivels and hardens, and actually left gaps between the pan and block. The rear main seal may or may not have been leaking, but since I was doing this anyway, I went and replaced it.

I dropped the drive train (drive shaft and transmission) as well as the front cross member to drop the oil pan:

https://picasaweb.google.com/1155523...37344823295906

Yes, it IS a pain, but it can cost a few hundred dollars for a mechanic to do it for you.
Reply With Quote
  #5  
Old 10-05-2011, 07:34 AM
gfw1985's Avatar
gfw1985 gfw1985 is offline
Amatuer Restorer
 
Join Date: Mar 2008
Location: Raphine, Virginia
Posts: 3,389
gfw1985 is a name known to allgfw1985 is a name known to allgfw1985 is a name known to allgfw1985 is a name known to allgfw1985 is a name known to allgfw1985 is a name known to all
Just as a rule of thumb, when oil is running down outside of engine spacer plate, it is a pan gasket. Down inside(tranny side) its rear oil seal.
__________________
66 Bronco Half Cab, 203ci I6, CI aluminum head and intake, Isky 256/256 cam, Keith Black pistons, Clifford header, Holley 390cfm 4v, 9.7:1 comp, DSII ignition
55 F100 Build in progress http://www.ford-trucks.com/forums/13...100-build.html
Reply With Quote
  #6  
Old 10-05-2011, 08:41 AM
HemiEater's Avatar
HemiEater HemiEater is offline
Postmaster
 
Join Date: Jun 2005
Posts: 2,656
HemiEater is starting off with a positive reputation.
Not to throw a wrench in the fire here... but I have seen a rear intake seal look and act just like a rear main seal... first thing you need to do is verify where the leak is coming from.
__________________
Whipple Survivor May 2008
Reply With Quote
  #7  
Old 10-05-2011, 06:57 PM
xlt4wd90 xlt4wd90 is offline
Postmaster
 
Join Date: Sep 2003
Posts: 4,576
xlt4wd90 is gaining momentum as a positive member of FTE.
A leaking rear intake seal will dribble oil down the back of the engine above the bell housing. Valve cover gaskets leaking in the back will also do that. So the top of the bell housing will be all grimy. Mine had that as well, but I've recently replaced my valve cover gaskets, so I'll be checking the intake gaskets too.

I almost wish that after getting a new car, I could go through the whole drive train to replace every stock gasket and seal with better aftermarket parts as soon as the basic warranty has expired. The standard cork gaskets will be the first to die after a few years, and then it's just a matter of time for everything else. A good aftermarket replacement, like FelPro's perma-Dry line, lasts much longer, possibly for the remaining life of the drive train.
Reply With Quote
  #8  
Old 10-06-2011, 12:08 AM
BadDogKuzz's Avatar
BadDogKuzz BadDogKuzz is offline
Posting Guru
 
Join Date: Dec 2010
Location: Gary,Indiana
Posts: 2,354
BadDogKuzz is a splendid one to beholdBadDogKuzz is a splendid one to beholdBadDogKuzz is a splendid one to beholdBadDogKuzz is a splendid one to beholdBadDogKuzz is a splendid one to beholdBadDogKuzz is a splendid one to beholdBadDogKuzz is a splendid one to beholdBadDogKuzz is a splendid one to behold
Well I was hoping it would be more clear cut on the problem but it isn't. I pressure washed the motor and under side but is still a oilly mess. I try to dig around alittle better. You guys have given me some things to look for. I am scared of what I'll find. I haven't checked the valve covers or intake yet. I guess I should have started at the top DaDAaa
__________________
Ed PAA#121 "It's a sick world and I am a happy guy"
Blackie/E99 F350 Lariat CC DRW 216k: 4" MBRP,up&down pipes coated/wrapped, bellows, T500, Kuzz4R100, TruCool, CCV with catch can, 50cent, E99 turbo/1.0 w.g.turbine, T.M. wastegate, EBPV delete,470-ohm, hutch/harpoon, A/C shim, K&N, Smoked lights

'76 E350 DRW/26' Holiday Ramber 460 4bl C6 : Autometer gauges
Reply With Quote
  #9  
Old 10-06-2011, 10:17 PM
firewood truck firewood truck is offline
Senior User
 
Join Date: May 2011
Location: Charm City
Posts: 422
firewood truck is gaining momentum as a positive member of FTE.
The 5.0 that was in my truck leaked like a sieve, I was sure that the rear main seal was gone but after a very good de-greasing I found that the VC gaskets and the oil pan gasket were bad. After replacing them, I thought I had it under control until until a road trip showed I still had oil coming from somewhere.

Upon cleaning the engine again I found the source of the main leak- the oil pan had a rust hole in it!
Reply With Quote
  #10  
Old 10-09-2011, 04:11 AM
xlt4wd90 xlt4wd90 is offline
Postmaster
 
Join Date: Sep 2003
Posts: 4,576
xlt4wd90 is gaining momentum as a positive member of FTE.
The stock valve cover gaskets that came with my 87 Mustang were cork with metal inserts at the bolt holes to prevent them from being crushed. After a few years, the cork shrunk enough to actually leave the gap between the valve covers and the head. So oil was liberally leaking out, making big messes. I now have FelPro perma-dry metal-reinforced rubber gaskets that hopefully will last longer.

I just buttoned up my car after replacing the oil pan gaskets (also Fel-Pro perma-dry) and rear main seal. Took it for a short drive, and will check tomorrow for leaks. More on my other thread.
Reply With Quote
  #11  
Old 10-09-2011, 09:55 AM
BadDogKuzz's Avatar
BadDogKuzz BadDogKuzz is offline
Posting Guru
 
Join Date: Dec 2010
Location: Gary,Indiana
Posts: 2,354
BadDogKuzz is a splendid one to beholdBadDogKuzz is a splendid one to beholdBadDogKuzz is a splendid one to beholdBadDogKuzz is a splendid one to beholdBadDogKuzz is a splendid one to beholdBadDogKuzz is a splendid one to beholdBadDogKuzz is a splendid one to beholdBadDogKuzz is a splendid one to behold
Quote:
Originally Posted by xlt4wd90 View Post
The stock valve cover gaskets that came with my 87 Mustang were cork with metal inserts at the bolt holes to prevent them from being crushed. After a few years, the cork shrunk enough to actually leave the gap between the valve covers and the head. So oil was liberally leaking out, making big messes. I now have FelPro perma-dry metal-reinforced rubber gaskets that hopefully will last longer.

I just buttoned up my car after replacing the oil pan gaskets (also Fel-Pro perma-dry) and rear main seal. Took it for a short drive, and will check tomorrow for leaks. More on my other thread.
Sounds like you have a handle on your leaks and hopefully that is all of them. Can you post a link to your other tread.
__________________
Ed PAA#121 "It's a sick world and I am a happy guy"
Blackie/E99 F350 Lariat CC DRW 216k: 4" MBRP,up&down pipes coated/wrapped, bellows, T500, Kuzz4R100, TruCool, CCV with catch can, 50cent, E99 turbo/1.0 w.g.turbine, T.M. wastegate, EBPV delete,470-ohm, hutch/harpoon, A/C shim, K&N, Smoked lights

'76 E350 DRW/26' Holiday Ramber 460 4bl C6 : Autometer gauges
Reply With Quote
  #12  
Old 10-09-2011, 04:55 PM
xlt4wd90 xlt4wd90 is offline
Postmaster
 
Join Date: Sep 2003
Posts: 4,576
xlt4wd90 is gaining momentum as a positive member of FTE.
Here it is:

http://www.ford-trucks.com/forums/11...l#post10901699
Reply With Quote
  #13  
Old 10-09-2011, 08:33 PM
BadDogKuzz's Avatar
BadDogKuzz BadDogKuzz is offline
Posting Guru
 
Join Date: Dec 2010
Location: Gary,Indiana
Posts: 2,354
BadDogKuzz is a splendid one to beholdBadDogKuzz is a splendid one to beholdBadDogKuzz is a splendid one to beholdBadDogKuzz is a splendid one to beholdBadDogKuzz is a splendid one to beholdBadDogKuzz is a splendid one to beholdBadDogKuzz is a splendid one to beholdBadDogKuzz is a splendid one to behold
Well I found my oil leak it was the oil pan gasket. The gasket was blown out. And it was a really easy fix. I SOLD the truck this afternoon. And I was honest with the guy about the oil leak and he seemed cool about it. It was a good old truck I am going to miss it. Now I can pull the trans in my F350 and do some front pump mods and replace the front seal in it.
"If it wasn't that it would be something else!"
Thanks guys for all your help
__________________
Ed PAA#121 "It's a sick world and I am a happy guy"
Blackie/E99 F350 Lariat CC DRW 216k: 4" MBRP,up&down pipes coated/wrapped, bellows, T500, Kuzz4R100, TruCool, CCV with catch can, 50cent, E99 turbo/1.0 w.g.turbine, T.M. wastegate, EBPV delete,470-ohm, hutch/harpoon, A/C shim, K&N, Smoked lights

'76 E350 DRW/26' Holiday Ramber 460 4bl C6 : Autometer gauges
Reply With Quote
Old 10-09-2011, 08:33 PM
 
 
 
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
oil leak roy123 1973 - 1979 F-100 & Larger F-Series Trucks 1 08-18-2013 07:11 PM
Oil pan gasket and rear main seal replacement krazyeric 1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks 6 03-07-2011 11:25 PM
390 rear main seal leak mikev 1967 - 1972 F-100 & Larger F-Series Trucks 7 11-12-2010 03:01 PM
1989 F150 Rear Main Seal and Oil Pan Gasket novicebob 1987 - 1996 F150 & Larger F-Series Trucks 2 11-01-2002 06:22 AM
94 302 oil leak - pan gasket or main seal jethro Small Block V8 (221, 260, 289, 5.0/302, 5.8/351W) 9 01-26-2002 12:00 AM


Go Back   Ford Truck Enthusiasts Forums > Performance, Engines & Troubleshooting > Small Block V8 (221, 260, 289, 5.0/302, 5.8/351W)

Tags
302, 50, engine, ford, gasket, leak, leaking, location, main, oil, pan, rear, replace, replacing, seal, sealing

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On

Forum Jump


Participate In The Forums

Create new posts and participate in discussions. It's free!

Sign Up »





All times are GMT -5. The time now is 12:36 AM.


Powered by vBulletin® Version 3.8.7 AC1
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Advertising - Terms of Use - Privacy Statement - Jobs
This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. Ford® is a registered trademark of the Ford Motor Company.

vbulletin Admin Backup