Rear diff leak, pic included!

Flexy · 08-10-2003, 09:55 PM

Hello. Only have 50 000km on my car. I noticed that 1/4 of the rear diff outside is covered in gear box fluid. It seems to be leaking. It doesn't leak on the floor, but when I run my finger on the rear diff, I can feel a layer of fluid. Like i said, it doesn't leak on the floor, like some cars leak oil. Just leaks very slowly I think, dries up from outside and on and on. Is that normal?? If not, can this be covered by warranty?? Thanks...

Just got picture up...!!!!
http://members.rogers.com/andrey52/pictures/diff.jpg

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Robin2 · 08-10-2003, 10:01 PM

Are you sure it's leaking? cause at 50k kms, you should have recently changed the rear diff oil......

I know when I changed mine and with the rear diff skid plate, it was messy.....

I suggest to clean it off.... and monitor it....

Who changed the fluid last time?

Robin

Flexy · 08-10-2003, 10:11 PM

I did changed it. It was clean when I did it.

HomerJay · 08-11-2003, 02:57 AM

Did you change it? Also, what did you change it w/? Are you sure it's leaking?

orndog · 08-11-2003, 08:34 AM

Need a higher res pic to tell anything.

Robin2 · 08-11-2003, 09:05 AM

How much torque was used? I think the torque required is 44 ft/lbs....

How anyone had this problem before if the gasket is leaking?

Robin

Karl · 08-11-2003, 09:17 AM

When did you do the fluid change?
Looks to me the plugs are not in deep enough. But need a closer picture to tell.
For now, use some Simple Green and clean the differential up, and see if the "leak" reappears.

Flexy · 08-11-2003, 11:15 AM

Plugs are not leaking. The top part on the left is leaking. Could be axel or something. Made an appointment at the dealer next week. They will take a look..

North Ursalia · 08-11-2003, 01:36 PM

It's probably actually the vent on top of the diff doing the leaking... it's a classic issue that there is a TSB on (though I don't have the TSB number off the top of my head

).

Brian

Flexy · 08-11-2003, 02:39 PM

It's actually a SEAL!!!! Covered by warranty.

Foz · 08-11-2003, 09:21 PM

I had my seal replaced by warranty as well. No more leak.

Oquipah · 07-25-2005, 05:18 PM

I hereby resurrect this thread!

I have a leak in my rear differetial (98 2.5 GT). Noticed it today while getting a heat shield removed. I looked up part numers to determine what the price would be to fix, but the parts list only shows the entire rear differential ($460+)

Is there a gasket that can be replaced or do I really need an entire rear diff? I was planning on spending the money elsewhere (brakes, tires).

Cost of repairs? Part numbers?

Thanks,
Oquipah

PowderMan420 · 07-25-2005, 06:02 PM

how bout a new plug and some plumbers tape?

Oquipah · 07-27-2005, 04:34 PM

Mechanic also suggested the vent at top of differential, which can spray fluid out, especially at high speeds on the highway. I'm going to check my fluid levels this weekend to see just how much is or isn't there. On that note, how do I check the fluid?

If anyone can find the TSB on this I'd be your friend.

Thanks,
Oquipah

pityr · 07-27-2005, 05:38 PM

To check the fluid level in the rear diff you take the upper bolt out and stick your finger in. I think the fluid should be up near the bottom of the upper bolt hole. If its not then you may need to add more fluid.

Oquipah · 07-28-2005, 07:51 AM

Excellent, thanks! I found it in the Haynes manual late last night too. Fluid should be even with bottom of upper bolt opening.

Peace,
Oquipah

08-10-2003, 09:55 PM	#1
Flexy Scooby Newbie Member#: 34028 Join Date: Mar 2003 Location: Toronto Vehicle: 2000 Legacy GT Titanium	Rer diff leak. Pic included! Hello. Only have 50 000km on my car. I noticed that 1/4 of the rear diff outside is covered in gear box fluid. It seems to be leaking. It doesn't leak on the floor, but when I run my finger on the rear diff, I can feel a layer of fluid. Like i said, it doesn't leak on the floor, like some cars leak oil. Just leaks very slowly I think, dries up from outside and on and on. Is that normal?? If not, can this be covered by warranty?? Thanks... Just got picture up...!!!! http://members.rogers.com/andrey52/pictures/diff.jpg * Registered users of the site do not see these ads.

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08-10-2003, 10:01 PM	#2
Robin2 NASIOC Supporter Member#: 390 Join Date: Oct 1999 Chapter/Region: E. Canada Location: Ottawa, Ontario, Canada Vehicle: 2011 WRX sedan Plasma Blue	Are you sure it's leaking? cause at 50k kms, you should have recently changed the rear diff oil...... I know when I changed mine and with the rear diff skid plate, it was messy..... I suggest to clean it off.... and monitor it.... Who changed the fluid last time? Robin

08-10-2003, 10:11 PM	#3
Flexy Scooby Newbie Member#: 34028 Join Date: Mar 2003 Location: Toronto Vehicle: 2000 Legacy GT Titanium	I did changed it. It was clean when I did it.

08-11-2003, 02:57 AM	#4
HomerJay Scooby Specialist Member#: 1135 Join Date: Mar 2000 Chapter/Region: BAIC Location: BAICED Vehicle: 2005 WRX WAGON Silver	Did you change it? Also, what did you change it w/? Are you sure it's leaking?

08-11-2003, 08:34 AM	#5
orndog Scooby Specialist Member#: 34670 Join Date: Mar 2003 Chapter/Region: South East Location: Atlanta Vehicle: If she smokes she pokes	Need a higher res pic to tell anything.

08-11-2003, 09:05 AM	#6
Robin2 NASIOC Supporter Member#: 390 Join Date: Oct 1999 Chapter/Region: E. Canada Location: Ottawa, Ontario, Canada Vehicle: 2011 WRX sedan Plasma Blue	How much torque was used? I think the torque required is 44 ft/lbs.... How anyone had this problem before if the gasket is leaking? Robin

08-11-2003, 09:17 AM	#7
Karl Scooby Specialist Member#: 13110 Join Date: Dec 2001 Chapter/Region: NESIC Location: Rhode Island	When did you do the fluid change? Looks to me the plugs are not in deep enough. But need a closer picture to tell. For now, use some Simple Green and clean the differential up, and see if the "leak" reappears.

08-11-2003, 11:15 AM	#8
Flexy Scooby Newbie Member#: 34028 Join Date: Mar 2003 Location: Toronto Vehicle: 2000 Legacy GT Titanium	Plugs are not leaking. The top part on the left is leaking. Could be axel or something. Made an appointment at the dealer next week. They will take a look..

08-11-2003, 01:36 PM	#9
North Ursalia Miss You Mom Oct 1940 - Feb 2008 Super Moderator Member#: 809 Join Date: Jan 2000 Chapter/Region: NESIC Location: NH, Land Of Many Trees Vehicle: 2000 2.5 RS, '14 For 92 5MT SVX	It's probably actually the vent on top of the diff doing the leaking... it's a classic issue that there is a TSB on (though I don't have the TSB number off the top of my head ). Brian

08-11-2003, 02:39 PM	#10
Flexy Scooby Newbie Member#: 34028 Join Date: Mar 2003 Location: Toronto Vehicle: 2000 Legacy GT Titanium	It's actually a SEAL!!!! Covered by warranty.

08-11-2003, 09:21 PM	#11
Foz Scooby Newbie Member#: 1776 Join Date: Jun 2000 Chapter/Region: W. Canada Location: Calgary, AB, Canada Vehicle: 2000 2.5RS BRP	I had my seal replaced by warranty as well. No more leak.

07-25-2005, 05:18 PM	#12
Oquipah Scooby Newbie Member#: 9689 Join Date: Aug 2001 Chapter/Region: MAIC Vehicle: 1998 Legacy GT Silver	I hereby resurrect this thread! I have a leak in my rear differetial (98 2.5 GT). Noticed it today while getting a heat shield removed. I looked up part numers to determine what the price would be to fix, but the parts list only shows the entire rear differential ($460+) Is there a gasket that can be replaced or do I really need an entire rear diff? I was planning on spending the money elsewhere (brakes, tires). Cost of repairs? Part numbers? Thanks, Oquipah

07-25-2005, 06:02 PM	#13
PowderMan420 Scooby Newbie Member#: 33737 Join Date: Mar 2003 Location: Tiger Mountain	how bout a new plug and some plumbers tape?

07-27-2005, 04:34 PM	#14
Oquipah Scooby Newbie Member#: 9689 Join Date: Aug 2001 Chapter/Region: MAIC Vehicle: 1998 Legacy GT Silver	Mechanic also suggested the vent at top of differential, which can spray fluid out, especially at high speeds on the highway. I'm going to check my fluid levels this weekend to see just how much is or isn't there. On that note, how do I check the fluid? If anyone can find the TSB on this I'd be your friend. Thanks, Oquipah

07-27-2005, 05:38 PM	#15
pityr Scooby Specialist Member#: 31719 Join Date: Jan 2003 Chapter/Region: NWIC Location: Portland	To check the fluid level in the rear diff you take the upper bolt out and stick your finger in. I think the fluid should be up near the bottom of the upper bolt hole. If its not then you may need to add more fluid.

07-28-2005, 07:51 AM	#16
Oquipah Scooby Newbie Member#: 9689 Join Date: Aug 2001 Chapter/Region: MAIC Vehicle: 1998 Legacy GT Silver	Excellent, thanks! I found it in the Haynes manual late last night too. Fluid should be even with bottom of upper bolt opening. Peace, Oquipah