[RESOLVED] really bad oil leak...need help!!

[LTUDSM]

hey guys,today i woke up, and i saw a huge spot of oil under my car.I opened the hood,and the was oil marks on top of the tranny case.I cleaned that up to see where is leaking.But while the engine is not running,the oil doesnt leak.So i took the car for a spin,came back home,opened the hood,and again i saw oil all over the place.My question would be: is there some kind of bolt ,which is on a block somewhere,that could cause me that leak??? or there is something else related to that oil leak???

 

[Mr2god]

There are alot of things on that side of the motor it could be. In my own experience I have found that the valve cover gasket (including the half moon gasket) can make quite a mess on that side of the motor, I had one go out and go all over the left side and front of the motor. Can you tell what the general area is, where the leak originated? You should be able to track it back to where it starts.

 

[Old Mitsu Tech]

Get some engine oil dye which reacts to ultraviolet light. Get a cheap black light. Put the dye into the engine, start engine with a very little ambient light. Watch with your black light and observe the source of a very green or orange oil. That will be your leak source.

Good Luck

 

[LTUDSM]

i used that black light,but couldn't trace the oil leak ((((( im gonna post some pictures in there maybe you guys could help me out a lilbit more The oil is getting up top the tranny,the whole bottom is covered in oil.i had a little leak from turbo oil drain line,ill put a new aftermarket one and i solved that problem.Today i realized that i have a shaftplay in my turbo,could it be the problem of why im getting a huge oil leak.I got to add 2 quarts every damn morning.My exhaust manifold is not leaking,valve cover is tight too.I just took a car from a shop,they did the engine work,from bottom to the top,so im 100% positive,that valve cover gasket and exhaust with intake manifold are sealed good.I had that leak before the guys did the engine.so i know that its not them fault.

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[Jeff_Ciesielski]

Check the turbo oil feed bolt in the head, and also check where the block/head meet on that side. I've seen a few cases where the gasket will let go on that oil passage and spray oil everywhere on that side of the motor. Good luck.

 

[LTUDSM]

well im running oil feed line directly from oil housing,so that head oil source is sealed very good as you can see in the picture.I took a bolt put some high temp rtv on threads and screwed in,after that i put some JB Weld around the bolt for double protection.The head gasket is sealed good,because its dry around that area.

 

[Dave532]

Does your PCV vent anywhere near there?

 

[LTUDSM]

my PCV goes to the oil catchcan.I just took tranny out and there is alot of engine oil inside the bellhousing.Its not a tranny oil there im positive 100%.plus my tranny was rebuilt not that long ago and they replaced all the shaft seals.Plus I took the flywheel off,and the side (which goes toward the engine block) is clean,no oil,so it can't be the rear main seal,### i change that last summer.Im totally lost here.....

 

[LTUDSM]

is there any oil plugs on the left side or rear the engine block?? Or what else should i look at??

 

[AlaskanDsm]

From the pictures it looks as if the transmission is the only thing that has oil on it. Are you sure there aren't any holes or anything on the bell housing on the top or bolts that go all the way through. Also does the car spray oil only when the car is driving? or only at idle or both. If its only at driving, Is it possible the leak is a transmission leak at all??

I would think that if it was an engine oil leak that you would see it at idle or at driving. Maybe with someone else's help you can have then or you reve the engine up to 2500-3000 to get the oil pressure up and then see if you can find where the oil is coming from under the hood. Do it for a couple minutes to at least simulate you taking it for a quick drive.

 

[1gDSM4g63]

I had a similar situation. Check leaks on the oil pan where the oil pump is. It leaks a lot of oil when the oil pump isn't pumping.

 

[stockfornow]

Could it be just an o-ring around the CAS??? Just a thought, because that's only other thing I can think of right now...


Edit: I meant a missiong o-ring, sorry.

 

[architechnik]

When you changed the oil return line, did you use new gaskets and/or sealant? Is there oil on any other segment other than the very top of the tranny?

It looks like it must be coming from the head gasket directly below the coolant entry. Have you done a compression test? Have you checked the coolant for discoloration?

 

[LTUDSM]

Could it be just an o-ring around the CAS??? Just a thought, because that's only other thing I can think of right now...


Edit: I meant a missiong o-ring, sorry.

thats what i was thinking too,because its kinda oily and i thought that the oil could be sprayed from a different location on the CAS,but i just stopped reading about it ,and i realized that CAS has some kind of O-Ring gasket

The other thing that i came up is the oil plug galley.Because i got some oil in the tranny's bell housing. I changed The rear main seal not that long ago,sp it's not leaking for sure.

 

[LTUDSM]

When you changed the oil return line, did you use new gaskets and/or sealant? Is there oil on any other segment other than the very top of the tranny?

It looks like it must be coming from the head gasket directly below the coolant entry. Have you done a compression test? Have you checked the coolant for discoloration?

I just took it out,because i thought it was leaking from there,but i saw some oil marks on the tube.To be safer, im gonna get a new Oil return line, with a copper washers and new gasket

 

[LTUDSM]

well today i bought the whole set of gaskets and plugs for the oil.so i changed everything,and when i took my flywheel off,i saw my real leak that i couldn't find.The leak was from rear crankshaft seal case,but i don't know,why it was leaking,but i put some high temp Permatex RTV in there,and i hope it won't leak again,Also i changed a new oil galley plug,new oil pan gasket,new oil return line,new plug with copper washer for the head oil feed line,new CAS o-ring.Im gonna put tranny and the rest of the parts by the weekend,so then ill see if it would leak. Thanks for the all replays really appreciated

 

[knochgoon24]

Please mark as resolved then.

 

[LTUDSM]

and how should i do that?!

 

[DougR]

I know this is resolved. but heres A Tip for you Guys chasing oil leaks...


A clean engine is easy to find leaks!
Now how do you clean a engine to factory cleanliness??

Read on..

Berrymans B-12 Its the absolute Best!. From autozone or probly any Autoparts Store, get 6 cans. (depending on how nasty your engine bay is, you will use all of them and probly want more). And a spray Bottle of Simple Green MAX!, make shure its the Max type. Its absolutly awsome for cleaning ( I get the big Gallon jug and use a cheap dollar store sprayer, I loose them or run the over alot ).

Start with a Semi warm motor. Just warm enough that you can hold your hand on any part of the motor.. Except exhaust, Duh!

This softens the oil and greese, etc....

HOSE IT! anywhere you have nasty stuff... I spray Everything including electrical... I just dont hose the electrical connections with alot of SG....
Let it sit for about 15 mins (drink a beer) then hose it again with SG.... Let sit for another 15 mins (drink a beer)..

Now Carefully rise the grime off with your Mist sprayer on a water hose. Dont be stupid and just hose everything. Becarefull and AIM! and dont use Full blast on the hose, just a fine spray to rinse the gunk off.
You will see A ton of grime instantly come off the engine! Once its rinsed semi clean. get out the trusty B-12!

Now be smart here! B-12 is VERY strong. Do this in a well ventilated area!!!!
Spray anywhere the thick grime and the oilly residue didnt come off with the SG.
You will Instantly see Bare aluminum and bare painted surfaces with the B-12.

You will use up probly 3 cans cleaning the rest of the grime off... Use as mutch as needed to get ALL grime and oil off.

Now, that you have a nice and clean engine... let it dry.
This is when you get to find that leak! Fire up the car. and drive aound the block
(SLowly!) until fully warmed up... do one or 2 pulls to get the oil pressure high.... and go home. dont go to the store or anywhere, just enough to get good high pressure!

Grab your brightest shop light and start eyeballin that engine. GET CLOSE! as the fresh oil. will be hard to see.
You Will! find that leak. as everything else will clean and dry....
once Found . Use any armorall type tire spray and hose that engine.. SG and B-12 likes to dry out hoses and plastics... I Hose Everything and wipe up excess... the next day Everything looks new.
Now Fix that leak. with a Clean engine that wont get you all nasty and crap falling in your eyes!
If you have a Nasty underbody. lack that Sucker up and clean it all! while your at it.


DougR

 

[LTUDSM]

ok ,i changed the CAS's o-ring,and when i put the CAS back on,tried to start the car,and it won't start.Just cranks over and over again.I took the spark plugs out,and they were all wet. how do a adjust the CAS without running the car???

 

[LTUDSM]

ok i started it up finally.i let it idle for about a couple of min,rev it to lets 5000-5500 rpms and my turbo sprayed oil from the inlet.and like 1 quart of oil went into my exhaust (weird)

after all that i got under the car and i saw an oil leak again.It was coming from the corner of the oil pan and where the rear main seal is.what could cause that leak??? it was a huge leak.

 

[jake7420]

im gonna say valve cover but thats just me

 

[LTUDSM]

valve cover?????? the leak is on a bottom, where oil pan meets the case, where the Rear main crankshaft oil seal is......

 

[architechnik]

I guess this hasn't been resolved! I just came back to check up on everything and see you now have a hefty leak near your oil pan? The only thing you can do here is remove the pan.

If any of those bolts were too tight it may be bent where the screws go in. You'll need to replace the whole pan if it is too drastic (it won't get a seal if the holes are coned). I've heard of people getting good results using only gasket maker without a gasket for the pans and having them sit for a while before refilling. I never have that amount of time so I use gaskets and a touch of sealant to get it tacky.

Do you still think there are more places or somewhere other than the pan?

 

[LTUDSM]

ok i took some pictures today,maybe now it would be better to explain the main oil leak that i have again (((( Maybe when you guys see the pictures ,would be able to tell me whats going on there.... thanks

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