New Member RX-7 Technical Post your first technical questions here, in an easy flame free environment, before jumping into the main technical sections.

FD3S Oil Leaking

Thread Tools
 
Search this Thread
 
Old 01-24-13, 08:48 PM
  #1  
Full Member

Thread Starter
iTrader: (8)
 
TitoBT87's Avatar
 
Join Date: Jan 2013
Location: Space Coast, FL
Posts: 126
Received 10 Likes on 7 Posts
FL FD3S Oil Leaking

1993 FD3S
Motor is completely stock
5 speed transmission

Well long story short. I wanted to do my oil change today for the FD. I basically bought the oem oil filter and decided to go with 20w50 premium oil. When i jacked the car up i notice their was oil all over the bottom of the car. To be more specific there was oil all over the oil pan and near where the engine and transmission meet. I took a few photos.

Lucky the previous owner saved all of the dealer RO's. I notice this problem has been addressedto the previous owner but not taken care of. Basically the RO states
(Check car is leaking oil on right side ) These are the part number
1 N3A1-10-507 SEAL, OIL WEDGE
1 N3A2-14-293 GASKET, OIL PIPE
1 N3A1-10-502 GASKET FRONT COVER

1 N3C1-13-700 TURBOCHARGER
1 N3A2-13-710 GASKET, TURBO CHARGER
1 N3A1-13-710 GASKET, TURBO CHARGER


From the sounds of it im probably looking at a full rebuild or just some overhauling

Overall the car starts fine and idles perfect. It has a strong pull, turbo spools nice. It throws a little bit of smoke when i start the car but that occurs when the car is cold.
I never did the compression test when i purchase the car. Any feedback....
Attached Thumbnails FD3S Oil Leaking-2013-01-24-16.19.30.jpg   FD3S Oil Leaking-2013-01-24-16.19.35.jpg   FD3S Oil Leaking-2013-01-24-16.19.52.jpg   FD3S Oil Leaking-2013-01-24-16.19.58.jpg  
Old 01-25-13, 05:21 AM
  #2  
Urban Combat Vet

iTrader: (16)
 
Sgtblue's Avatar
 
Join Date: Oct 2003
Location: Mid-west
Posts: 12,021
Received 866 Likes on 615 Posts
Put the car up on stands and take some time to clean it thoroughly of any oil. You can do your oil change while your under there....but get it as clean as possible. Then after a day or two get back under it and see if you get a better idea of where it's coming from.
My first suspect would be the oil pan. They are notorious for leaking over time. As long as you watch the oil level, it's nothing that will harm anything but your driveway. But it can be nuisance. Not an expensive job to do yourself if you're ambitious and have some experience wrenching. But it's not a small job. Search in the 3rd Gen. Section with terms like "pan leak" or "oil pan" for more info.
My second suspect would be the turbos. Either an oil line or possibly the turbos themselves.
The only other possiblity is possibly a rear main seal. Not too common but it happens. Easy to check using that inspection access in the picture with the two 10mm bolts. Remove them and stick your finger up on the inside of the bellhousing. If it's full of oil, then it's usually a rear main seal. Again, not espensive if you can R & R the transmission and Flywheel yourself. The seal is only ~ $12.

If that is the original pre-cat on that car, I recommend you get it off and install a downpipe when you can. They've been know to collapse with time and age and can damage the engine and take out the main cat. Heat-coating or header-wrapping the downpipe will also significantly reduce underhood temps. And that's much kinder on plastics, hoses and solenoids. Nice little performance gain too.

If you can't do the work yourself, look around for the rotary specialty shop nearest you. Not too many good experiences on the board from dealerships on these cars. Most of the techs weren't even driving when they were made anyway.
Old 01-25-13, 08:58 AM
  #3  
Urban Combat Vet

iTrader: (16)
 
Sgtblue's Avatar
 
Join Date: Oct 2003
Location: Mid-west
Posts: 12,021
Received 866 Likes on 615 Posts
FWIW....looks like they already changed the rear main seal. That's what they called the "wedge seal". I'd still check for leakage.
Looking at what they did change tends to point toward the pan leaking.
Old 01-25-13, 09:23 AM
  #4  
Junior Member

 
DONCHARLIE's Avatar
 
Join Date: Jun 2005
Location: Miami
Posts: 27
Likes: 0
Received 0 Likes on 0 Posts
If have a shop In Miami.Pm me for the details.

Charlie

Last edited by misterstyx69; 01-25-13 at 10:36 AM. Reason: Took out shop info.NO advertising without consent of Club.
Old 01-25-13, 10:46 AM
  #5  
Urban Combat Vet

iTrader: (16)
 
Sgtblue's Avatar
 
Join Date: Oct 2003
Location: Mid-west
Posts: 12,021
Received 866 Likes on 615 Posts
No personal experience, but another option is Pettit Racing, in West Palm Beach.
Old 01-25-13, 05:31 PM
  #6  
Full Member

Thread Starter
iTrader: (8)
 
TitoBT87's Avatar
 
Join Date: Jan 2013
Location: Space Coast, FL
Posts: 126
Received 10 Likes on 7 Posts
Originally Posted by Sgtblue
Put the car up on stands and take some time to clean it thoroughly of any oil. You can do your oil change while your under there....but get it as clean as possible. Then after a day or two get back under it and see if you get a better idea of where it's coming from.
My first suspect would be the oil pan. They are notorious for leaking over time. As long as you watch the oil level, it's nothing that will harm anything but your driveway. But it can be nuisance. Not an expensive job to do yourself if you're ambitious and have some experience wrenching. But it's not a small job. Search in the 3rd Gen. Section with terms like "pan leak" or "oil pan" for more info.
My second suspect would be the turbos. Either an oil line or possibly the turbos themselves.
The only other possiblity is possibly a rear main seal. Not too common but it happens. Easy to check using that inspection access in the picture with the two 10mm bolts. Remove them and stick your finger up on the inside of the bellhousing. If it's full of oil, then it's usually a rear main seal. Again, not espensive if you can R & R the transmission and Flywheel yourself. The seal is only ~ $12.

If that is the original pre-cat on that car, I recommend you get it off and install a downpipe when you can. They've been know to collapse with time and age and can damage the engine and take out the main cat. Heat-coating or header-wrapping the downpipe will also significantly reduce underhood temps. And that's much kinder on plastics, hoses and solenoids. Nice little performance gain too.

If you can't do the work yourself, look around for the rotary specialty shop nearest you. Not too many good experiences on the board from dealerships on these cars. Most of the techs weren't even driving when they were made anyway.
Thank you for your advice it was the oil pan. A friend of mine on the forum recommend a oil pan brace from Banzai Racing.com This will fix the problem. But yes i will change the down pipe.

Originally Posted by Sgtblue
FWIW....looks like they already changed the rear main seal. That's what they called the "wedge seal". I'd still check for leakage.
Looking at what they did change tends to point toward the pan leaking.
No the wedge seals haven't been replaced. The RO from the Mazda dealer states that the wedge seal needs to be replaced.
im probably going to change the wedge seals while im at it.

But Thanks for the info and support.
Old 01-26-13, 10:18 AM
  #7  
Urban Combat Vet

iTrader: (16)
 
Sgtblue's Avatar
 
Join Date: Oct 2003
Location: Mid-west
Posts: 12,021
Received 866 Likes on 615 Posts
Originally Posted by TitoBT87
Thank you for your advice it was the oil pan. A friend of mine on the forum recommend a oil pan brace from Banzai Racing.com This will fix the problem. But yes i will change the down pipe.
Absolutely. While it's no guarrantee, since you have to pull the pan I agree with your friend.... do a pan brace. Not Banzai's but close to five years later, mine's still dry....


Originally Posted by TitoBT87
im probably going to change the wedge seals while im at it.
You don't have to pull the transmission for the pan brace. If the rear main (wedge seal) isn't leaking, why mess with it?
Old 01-28-13, 10:11 PM
  #8  
Full Member

Thread Starter
iTrader: (8)
 
TitoBT87's Avatar
 
Join Date: Jan 2013
Location: Space Coast, FL
Posts: 126
Received 10 Likes on 7 Posts
Thanks for the infom Sgt Blue


Originally Posted by Sgtblue
Absolutely. While it's no guarrantee, since you have to pull the pan I agree with your friend.... do a pan brace. Not Banzai's but close to five years later, mine's still dry....



You don't have to pull the transmission for the pan brace. If the rear main (wedge seal) isn't leaking, why mess with it?
Old 01-28-13, 10:29 PM
  #9  
Junior Member
iTrader: (1)
 
revhard510's Avatar
 
Join Date: Jan 2013
Location: bay area california
Posts: 21
Likes: 0
Received 0 Likes on 0 Posts
I also had an oil leak. Oil was all over the oil Pan. So i cleaned it and put dye in the engine oil. It wasn't leaking from the pan. It was coming from the front cover. I wonder how hard it would to fix it. Gonna pull the motor out
Old 01-29-13, 07:49 AM
  #10  
Urban Combat Vet

iTrader: (16)
 
Sgtblue's Avatar
 
Join Date: Oct 2003
Location: Mid-west
Posts: 12,021
Received 866 Likes on 615 Posts
Not necessary to remove the engine to reseal the front cover. But it's pretty involved. Mostly just alot of stuff to R & R before getting to the front cover.
Old 01-29-13, 08:44 PM
  #11  
Full Member

Thread Starter
iTrader: (8)
 
TitoBT87's Avatar
 
Join Date: Jan 2013
Location: Space Coast, FL
Posts: 126
Received 10 Likes on 7 Posts
Sgt Blue do you recommend the Oil Pan brace from Banzai?
Old 01-30-13, 09:19 AM
  #12  
Rotary Specialists
RX7Club Vendor
iTrader: (11)
 
Banzai-Racing's Avatar
 
Join Date: Jan 2008
Location: Indiana
Posts: 4,825
Received 308 Likes on 180 Posts
He likes a different brace, however here is a thread https://www.rx7club.com/3rd-generati...rison-1014276/
Old 01-30-13, 11:12 AM
  #13  
Urban Combat Vet

iTrader: (16)
 
Sgtblue's Avatar
 
Join Date: Oct 2003
Location: Mid-west
Posts: 12,021
Received 866 Likes on 615 Posts
Yep. I like 'a' brace' over no brace at all.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
trickster
2nd Generation Specific (1986-1992)
25
07-01-23 04:40 PM
rotor_veux
2nd Generation Specific (1986-1992)
7
08-31-15 07:49 PM
Cameron38
1st Generation Specific (1979-1985)
3
08-19-15 06:08 PM
sypath
3rd Generation Specific (1993-2002)
2
08-16-15 12:06 AM



Quick Reply: FD3S Oil Leaking



All times are GMT -5. The time now is 05:11 PM.