3rd Generation Specific (1993-2002) 1993-2002 Discussion including performance modifications and Technical Support Sections.
Sponsored by:

more help diagnosing oil leak please...

Thread Tools
 
Search this Thread
 
Old Feb 25, 2002 | 04:54 PM
  #1  
rx7speed811's Avatar
Thread Starter
Accepting Donations.
Tenured Member 10 Years
 
Joined: Mar 2001
Posts: 323
Likes: 0
From: San Francisco, Ca.
Unhappy more help diagnosing oil leak please...

i poked around some more looking for the source of oil dripping down the side of my front rotor housing around the front spark plugs area. in a previous post, i was directed toward the oil filter housing, but upon closer inspection, there was no oil leaking from that entire apparatus.

i only see lots of oil dripping from in and around the hollow bolt that is about one inch directly above the front trailing spark plug. it is a hollow bolt with wires a few wires leading through the middle of it, tapped directly into a grommet in the side of the engine. i was told that this device is the knock sensor and has no relation to the lubrication system. i am almost positive that this is the source of the leaking fluid, but if it is not possible for oil to be coming through from that fitting, could it be a different, similar looking fluid leaking from it? i have not removed the sensor from its fitting yet.

the leak seems to be pretty bad, there is a wet spot on the floor under the leak about a foot in diameter, and there are dark trails of the fluid coming down the side of the engine "block." my car has not been started for almost three weeks, so i dont think the oil system has any pressure in it.

has this happened to anybody here before?
what do you guys think is my solution to fixing this leak?
thanks in advance for any help.
Reply
Old Feb 25, 2002 | 09:40 PM
  #2  
rx7speed811's Avatar
Thread Starter
Accepting Donations.
Tenured Member 10 Years
 
Joined: Mar 2001
Posts: 323
Likes: 0
From: San Francisco, Ca.
anyone???
Reply
Old Feb 26, 2002 | 07:47 AM
  #3  
rx7speed811's Avatar
Thread Starter
Accepting Donations.
Tenured Member 10 Years
 
Joined: Mar 2001
Posts: 323
Likes: 0
From: San Francisco, Ca.
"c'mon, throw me a frickin bone here!"
Reply
Old Feb 26, 2002 | 08:02 AM
  #4  
wasabi's Avatar
Full Member
Tenured Member 10 Years
 
Joined: Mar 2001
Posts: 101
Likes: 1
From: MD, USA
Try to look closely around the area where the plastic oil filler neck attaches to the motor. It is not uncommon to have oil coming out there. If that is the case, you need to remove the filler neck, put in a new o-ring, and seal the area with silicone.
-MP
Reply
Old Feb 26, 2002 | 08:20 AM
  #5  
Senior Member
Tenured Member 10 Years
 
Joined: Oct 2001
Posts: 291
Likes: 0
From: The 'Nati, Ohio
I could also be the oil pressure sending unit...or oil pressure switch (as it is called in the manual).

That is a bigger cylinder with a plastic sleeve on it. It has a wire harness sticking out of the end. It is above the spark plugs. This thing tends to go bad, and leak.

Does your oil pressure gauge bounce at all?

Later,
Patrick
Reply
Old Feb 26, 2002 | 11:19 AM
  #6  
Brede's Avatar
Full Member
Tenured Member 05 Years
 
Joined: Dec 2001
Posts: 114
Likes: 0
From: Norway, Europe
I would not think that the pressure sending unit is the source of the problem, as this is situated on the rear housing and the leak seems to be on the front one. I'm off to the garage now to look at my engine to check out where oil possibly can leak in this area. I've got the engine out of the car so I might take some pics to make things a bit easier to sort out..
Reply
Old Feb 26, 2002 | 11:20 AM
  #7  
rx7speed811's Avatar
Thread Starter
Accepting Donations.
Tenured Member 10 Years
 
Joined: Mar 2001
Posts: 323
Likes: 0
From: San Francisco, Ca.
thanks for your responses.

im pretty sure its not the oil filler neck seal, but i will check that again...

hmmm... oil pressure sender unit. sounds like something i need to take a look at! my oil pressure gauge bounces a lot. i always thought it was a normal thing for fds, but ididnt know it can result in a leak. i will definitely check that out when i get a chance.

keep em coming guys.
Reply
Old Feb 26, 2002 | 01:25 PM
  #9  
rx7speed811's Avatar
Thread Starter
Accepting Donations.
Tenured Member 10 Years
 
Joined: Mar 2001
Posts: 323
Likes: 0
From: San Francisco, Ca.
i am almost positive its not the front main seal, cover gasket, or rear main seal. i changed all of those big guys with my new motor. there were massive leaks coming from those. i then more recently changed my turbos and oil lines/seals to the turbos and my car was oil leak-free for a few months. i just noticed this new oil leak while my car was parked in the garage for a couple weeks changing some solenoids and the hoses. i need to check out the oil cooler lines though.

the leak really seems to be coming from the grommet above the front trailing plug, but i still havent had time to really do a wipedown inspection yet.
Reply
Old Feb 26, 2002 | 01:33 PM
  #10  
Flybye's Avatar
It's never fast enough...
Tenured Member 15 Years
 
Joined: Feb 2001
Posts: 3,760
Likes: 3
From: Miami - Given 1st place as the POOREST city in the US as per the federal government
Originally posted by Dont_Be_A_Rikki
...clean the spot where you think the leak is coming from and watch it to see if it leaks from there at idle if not you are in the wrong area!!!
Yep yep.
Jack it up and put it on jackstands, clean it, then start her up and watch the show.....
Reply
Old Feb 26, 2002 | 01:53 PM
  #11  
rx7speed811's Avatar
Thread Starter
Accepting Donations.
Tenured Member 10 Years
 
Joined: Mar 2001
Posts: 323
Likes: 0
From: San Francisco, Ca.
i kinda wanted to attempt a fix while everything is apart while im doing the hoses though. just in case it is something in a place that is a pain to get to. i did find many other oil leaks under the car before using this method though. isnt that kinda the only way to do it?
Reply
Old Feb 27, 2002 | 03:13 AM
  #12  
Brede's Avatar
Full Member
Tenured Member 05 Years
 
Joined: Dec 2001
Posts: 114
Likes: 0
From: Norway, Europe
(see pic) Is this the area you are leaking oil? If it is then the oil line connection bolt is the only point I could find that could possibly leak oil there..
Reply
Old Feb 27, 2002 | 01:54 PM
  #13  
rx7speed811's Avatar
Thread Starter
Accepting Donations.
Tenured Member 10 Years
 
Joined: Mar 2001
Posts: 323
Likes: 0
From: San Francisco, Ca.
ill have to check it out when i get home later this afternoon.

by the way, how the hell did you get a camera in there to take that picture??? i am assuming i will need some more room like that to work on it. when i look at it, there are is whole shitload of wiring and stuff in the way.
Reply
Old Feb 27, 2002 | 01:57 PM
  #14  
rx7speed811's Avatar
Thread Starter
Accepting Donations.
Tenured Member 10 Years
 
Joined: Mar 2001
Posts: 323
Likes: 0
From: San Francisco, Ca.
if it is that, would there be some type of o-ring or something i would be able to get to seal it back up??? if thats it, it looks like it will be cake to fix!
Reply
Old Feb 27, 2002 | 01:59 PM
  #15  
Brede's Avatar
Full Member
Tenured Member 05 Years
 
Joined: Dec 2001
Posts: 114
Likes: 0
From: Norway, Europe
I didn't get the camera in, i got the engine out!
It's a lot easier to rebuild it that way.
Reply
Old Feb 27, 2002 | 02:00 PM
  #16  
Brede's Avatar
Full Member
Tenured Member 05 Years
 
Joined: Dec 2001
Posts: 114
Likes: 0
From: Norway, Europe
There are 2 copper rings there.. You are sure to loose some oil if one of those are damaged.
Reply
Old Feb 27, 2002 | 02:18 PM
  #17  
badass7's Avatar
Pimpin Rotors...and Hoes
Tenured Member 15 Years
 
Joined: Feb 2001
Posts: 1,401
Likes: 0
From: New Orleans, LA
Like I said in your last post...it's most likely the oil line that connects right at the top of the front housing. The gasket on the nut usually goes out from the intense heat. I believe there is actually a metal tube that comes off the top of the front housing. I have this EXACT leak. It drips from there and goes right down the two trailing plugs on the font housing. ALSO, if you look at the bottom of your hood you will see a little spot of oil where a mist of oil is shot out under WOT.
Reply
Old Feb 27, 2002 | 02:27 PM
  #18  
rx7speed811's Avatar
Thread Starter
Accepting Donations.
Tenured Member 10 Years
 
Joined: Mar 2001
Posts: 323
Likes: 0
From: San Francisco, Ca.
ok, thanks for the great advice guys. i have not had a chance to get to checking it out lately, ive actually been kinda lazy about it. since running into so much broken **** in what was supposed to be just a "simple" hose job, ive lost a lot of the motivation that had me pumped up in the beginning. but im sure that will all come back once i get the car running right.

badass7, maybe you should leave the leak and drill a hole in the hood where the mist sprays so that ricers will be scared of your surging NAHSSSSSS!
Reply
Old Feb 27, 2002 | 03:21 PM
  #19  
artowar2's Avatar
Senior Member
Tenured Member 10 Years
 
Joined: Feb 2001
Posts: 464
Likes: 0
From: Was SoCal
You can buy fluorescent dyes that you add to your oil, then trace the leak points with a blacklight. Eastwood sells the stuff.

http://www.eastwoodco.com/

Maybe Pepboys carries it too...
Reply
Old Feb 27, 2002 | 03:36 PM
  #20  
mr_jonboy's Avatar
Senior Member
Tenured Member 15 Years
 
Joined: Apr 2001
Posts: 256
Likes: 1
From: Phoenix, AZ
I got the dye in my car right now at least for another 100 miles or so. Then checking it.
Reply
Old Feb 27, 2002 | 05:58 PM
  #21  
Senior Member
Tenured Member 05 Years
 
Joined: Jan 2002
Posts: 733
Likes: 0
From: blah
yeah me to!

Originally posted by rx7speed811
ok, thanks for the great advice guys. i have not had a chance to get to checking it out lately, ive actually been kinda lazy about it. since running into so much broken **** in what was supposed to be just a "simple" hose job, ive lost a lot of the motivation that had me pumped up in the beginning. but im sure that will all come back once i get the car running right.

badass7, maybe you should leave the leak and drill a hole in the hood where the mist sprays so that ricers will be scared of your surging NAHSSSSSS!
ive followed some of your post. i believe we started the hose job about the same time. so far, ive broke 4 selonoids, found out that 2 of my couplers where cracked, found fuel seaping from the top of my fuel pulsation damper, threw away both of the stock boost pills (because i didnt know they where in vacum lines), and i also have an oil leak that i never had before taking everything apart. needless to say my cars been on jacks for about 3 weeks now. anyway... i guess thats enough whinning from me. i just feel like i want ever drive my car again. good luck man. brad
Reply
Old Feb 25, 2004 | 09:22 AM
  #22  
ArtsRx7's Avatar
Full Member
iTrader: (5)
 
Joined: Nov 2002
Posts: 184
Likes: 0
From: Picayune, Ms
Where is the best place to purchase these cooper o-rings? I need them asap.
Reply
Old Sep 15, 2005 | 10:39 AM
  #23  
davesan1's Avatar
Full Member
Tenured Member 10 Years
iTrader: (4)
 
Joined: Aug 2003
Posts: 230
Likes: 0
From: Orange County, CA, USA
Oil Leak, your post 2/27/02

Brede -

I know this is an old post but couldn't see the pic. where you said, (I think), that the copper ring-based oil leak was likely located. If you still have it would you mind resending me the pic. please. Reply to this or PM or email me at david.tovey@***.net

Thanks

Dave

Originally Posted by Brede
(see pic) Is this the area you are leaking oil? If it is then the oil line connection bolt is the only point I could find that could possibly leak oil there..
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
rotor_veux
2nd Generation Specific (1986-1992)
5
Sep 3, 2015 07:10 PM
sypath
3rd Generation Specific (1993-2002)
2
Aug 16, 2015 12:06 AM




All times are GMT -5. The time now is 10:25 AM.