oil leak-help please!!!!

JeepGirlNC · 11-02-2009, 03:31 PM

I noticed a small oil leak at the rear of the oil pan a while back. Its a Jeep, not a big deal... Turned into a big leak. I replaced the oil pan gasket with success, I thought, a few days ago. But, I still have an oil leak in the same spot. Anyone have any suggestions on what to do next?

jeepers92 · 11-02-2009, 03:46 PM

Ill bet you money marble or chaulk that it is the rear main seal! I have the same problem, which i need to address! every time i stop there is a half dollar size spot on the ground at the rear of the motor!

JeepGirlNC · 11-02-2009, 03:58 PM

Ive been reading and thats what it sounds like. You got any ideas on how to do it? I've never messed with one before.

jeepers92 · 11-02-2009, 04:07 PM

Well I googled it and found steps on the internet, but doesnt seem hard.
Basics are drop the pan, and maybe an inspection plate behind motor,( cant remember now if thats on there or not.) loosen last cap on crank baring and pop out old seal and replace both uper and lower, Dont use this as directions just as an idea! I would search it. I know i found it and printed it out at home!

good luck!

**Fweaky** · 11-02-2009, 04:09 PM

Are you sure its motor oil? Do you have an automatic trans? My YJ's automatic transmission needs a seal replaced and it leaks in the same area.

rcajper · 11-02-2009, 09:32 PM

is it a 6 or 4 banger? reason being if its a 4 its a pain in the a@#, if its a 6 its a piece of cake

JeepGirlNC · 11-03-2009, 07:55 AM

its definitely motor oil. 6 cyl manual trans.

jeepers92 · 11-03-2009, 09:34 AM

Im pretty sure it would be the rear main seal then! hopefully I will get mine fixed soon so I can let you know how hard it is

JeepGirlNC · 11-03-2009, 10:16 AM

I'm going to try to get it done in the next couple weeks, before it gets any colder. I also have an axle seal leak so that should be fun to figure out too.

bigblack · 11-03-2009, 10:29 AM

the pan can have a lil dent in it to and not sealing all the way

jeepers92 · 11-03-2009, 10:35 AM

good luck let us know how it turns out!

moneypit89 · 11-04-2009, 03:09 PM

I have the same problem. From looking at it it looks like the oil pan plug is leaking but it is not. I guess i will try and replace the seal. Hopefully then my wife will let me park in the driveway again.

**whiteyj** · 11-04-2009, 04:03 PM

The other place to check is that it isn't leaking down the backside of the motor from the valve cover.

JeepGirlNC · 11-05-2009, 09:10 AM

Good luck to you, let me know how it goes!

starr · 11-05-2009, 02:24 PM

just a thought but where the dipstick goes in the block mine wasnt seald it was running down.the block

rcajper · 11-10-2009, 11:47 PM

ok jeep girl here it goes, disconnect batt. put jeep on jack stands so the axle is fully drooped. remove starter. remove oil pan.remove rear main cap . in the cap is 1/2 of the seal. take out and replace with new. the other is in the block.get a small flat screwdriver and push it around the crank.put some grease on the new half and push it trough were the old one was. apply rtv to the area where the 2 seals will meet. put cap back on . tighten to 55lbs put new oil pan seal on and put back together.

jbad · 11-11-2009, 12:11 AM

After removing the rear main seal, inspect if the crankshaft has pit marks or ridge where the seal was making contact w/ the crankshaft. If you have either one or both then changing the rear main seal might just be a temporary remedy...
If you don't see any then put it back together and go have fun.

JeepGirlNC · 11-11-2009, 08:39 AM

You guys are great! Thanks so much for th advice and instructions!

11-02-2009, 03:31 PM	#1
JeepGirlNC Jeeper Join Date: Nov 2009 Location: Haywood County, NC Posts: 30	oil leak-help please!!!! I noticed a small oil leak at the rear of the oil pan a while back. Its a Jeep, not a big deal... Turned into a big leak. I replaced the oil pan gasket with success, I thought, a few days ago. But, I still have an oil leak in the same spot. Anyone have any suggestions on what to do next?

11-02-2009, 03:46 PM	#2
jeepers92 Jeeper Join Date: Sep 2009 Location: quinc,il Posts: 180	Ill bet you money marble or chaulk that it is the rear main seal! I have the same problem, which i need to address! every time i stop there is a half dollar size spot on the ground at the rear of the motor! __________________ 92 wrangler yj 4 in lift, sye, posi lock, 35x12.50x15 on outlaw rims. much more to do!!

11-02-2009, 04:07 PM	#4
jeepers92 Jeeper Join Date: Sep 2009 Location: quinc,il Posts: 180	Well I googled it and found steps on the internet, but doesnt seem hard. Basics are drop the pan, and maybe an inspection plate behind motor,( cant remember now if thats on there or not.) loosen last cap on crank baring and pop out old seal and replace both uper and lower, Dont use this as directions just as an idea! I would search it. I know i found it and printed it out at home! good luck! __________________ 92 wrangler yj 4 in lift, sye, posi lock, 35x12.50x15 on outlaw rims. much more to do!!

11-02-2009, 04:09 PM	#5
Fweaky Supporting Member WF Supporting Member Join Date: Aug 2009 Location: Central Virginia Posts: 238	Are you sure its motor oil? Do you have an automatic trans? My YJ's automatic transmission needs a seal replaced and it leaks in the same area. __________________ If you find yourself in a fair fight, your tactics suck. 09 JK Unlimited 89 YJ

11-03-2009, 09:34 AM	#8
jeepers92 Jeeper Join Date: Sep 2009 Location: quinc,il Posts: 180	Im pretty sure it would be the rear main seal then! hopefully I will get mine fixed soon so I can let you know how hard it is __________________ 92 wrangler yj 4 in lift, sye, posi lock, 35x12.50x15 on outlaw rims. much more to do!!

11-02-2009, 03:58 PM	#3
JeepGirlNC Jeeper Join Date: Nov 2009 Location: Haywood County, NC Posts: 30	Ive been reading and thats what it sounds like. You got any ideas on how to do it? I've never messed with one before.

11-02-2009, 09:32 PM	#6
rcajper Jeeper Join Date: Oct 2009 Location: New Mexico Posts: 68	is it a 6 or 4 banger? reason being if its a 4 its a pain in the a@#, if its a 6 its a piece of cake

11-03-2009, 07:55 AM	#7
JeepGirlNC Jeeper Join Date: Nov 2009 Location: Haywood County, NC Posts: 30	its definitely motor oil. 6 cyl manual trans.

11-03-2009, 10:16 AM	#9
JeepGirlNC Jeeper Join Date: Nov 2009 Location: Haywood County, NC Posts: 30	I'm going to try to get it done in the next couple weeks, before it gets any colder. I also have an axle seal leak so that should be fun to figure out too. __________________ When all else fails, gas it! 93 Wrangler 4.0 6 Cyl YJ Green w/ hardtop 2 inch body lift w/ 32s

11-03-2009, 10:29 AM	#10
bigblack Jeeper Join Date: Oct 2009 Location: perryopolis Posts: 17	the pan can have a lil dent in it to and not sealing all the way

11-03-2009, 10:35 AM	#11
jeepers92 Jeeper Join Date: Sep 2009 Location: quinc,il Posts: 180	good luck let us know how it turns out! __________________ 92 wrangler yj 4 in lift, sye, posi lock, 35x12.50x15 on outlaw rims. much more to do!!

11-04-2009, 03:09 PM	#12
moneypit89 Jeeper Join Date: Sep 2009 Posts: 30	I have the same problem. From looking at it it looks like the oil pan plug is leaking but it is not. I guess i will try and replace the seal. Hopefully then my wife will let me park in the driveway again.

11-04-2009, 04:03 PM	#13
whiteyj N6ISL WF Supporting Member Join Date: Jul 2005 Location: A little east of Seattle Posts: 2,798	The other place to check is that it isn't leaking down the backside of the motor from the valve cover. __________________ '94 YJ

11-05-2009, 09:10 AM	#14
JeepGirlNC Jeeper Join Date: Nov 2009 Location: Haywood County, NC Posts: 30	Good luck to you, let me know how it goes! __________________ When all else fails, gas it! 93 Wrangler 4.0 6 Cyl YJ Green w/ hardtop 2 inch body lift w/ 32s

11-05-2009, 02:24 PM	#15
starr Jeeper Join Date: Aug 2009 Location: Marion,In Posts: 32	just a thought but where the dipstick goes in the block mine wasnt seald it was running down.the block __________________ Work hard Play harder

11-10-2009, 11:47 PM	#16
rcajper Jeeper Join Date: Oct 2009 Location: New Mexico Posts: 68	ok jeep girl here it goes, disconnect batt. put jeep on jack stands so the axle is fully drooped. remove starter. remove oil pan.remove rear main cap . in the cap is 1/2 of the seal. take out and replace with new. the other is in the block.get a small flat screwdriver and push it around the crank.put some grease on the new half and push it trough were the old one was. apply rtv to the area where the 2 seals will meet. put cap back on . tighten to 55lbs put new oil pan seal on and put back together.

11-11-2009, 12:11 AM	#17
jbad Newb Join Date: Nov 2009 Posts: 9	After removing the rear main seal, inspect if the crankshaft has pit marks or ridge where the seal was making contact w/ the crankshaft. If you have either one or both then changing the rear main seal might just be a temporary remedy... If you don't see any then put it back together and go have fun.

11-11-2009, 08:39 AM	#18
JeepGirlNC Jeeper Join Date: Nov 2009 Location: Haywood County, NC Posts: 30	You guys are great! Thanks so much for th advice and instructions! __________________ When all else fails, gas it! 93 Wrangler 4.0 6 Cyl YJ Green w/ hardtop 2 inch body lift w/ 32s

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