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Oil filter housing leak

Posted by gorf, Sep 3, 2012

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  1. gorf

    gorf Proven Member

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    Chapel hill, North Carolina
    Long story short, ended up rebuilding my engine used a new eagle crank, oil port mod on 2g head, evo squirters etc,etc.

    Got the car together and had a serious oil leak from my OFH, which I ported the oil relief before installing. Pulled the OFH and replaced the the gasket. Thought I was done but still had an oil leak. Tore the whole front done to make sure my front main was not leaking - it isn't.

    Pulled the Oil filter housing again and the gasket all along the bottom is ripped and oil soaked. Obviously the problem.

    What am I doing wrong - this is the second gasket that has failed on me?

    What type of sealant should I be using? I used red RTV last time.

    As a side note the car is running better than it ever has - except for the leak.
     

    Attached Files:

    gorf

    Street Build 1K  0

    1997 Mitsubishi Eclipse Spyder GST
    awd · manual · 2G DSM
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  2. jrohner

    jrohner Proven Member

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    Willmar, Minnesota
    Make sure the surfaces are clean and dry when you put it together.
     

    2K  0

    1991 Mitsubishi Eclipse GSX
    11.415 @ 119.59 · 1G DSM

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    1998 Mitsubishi Eclipse GSX
    414 whp · 459 lb/ft · 2G DSM
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  3. bryanwheat

    bryanwheat DSM Wiseman

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    Columbia, Missouri
    There should be NO sealant on that gasket. It appears that there might be some old gasket left on there that is causing it to not seal.
     
  4. 95'RS-T

    95'RS-T Proven Member

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    Germansville, Pennsylvania
    Really? I did not know that. I used black rtv on mine, and have no leaks(except where I cracked the housing by over tightening the low oil pressure switch:ohdamn:). I also cleaned and polished the mating surfaces though.
     

    447  0

    1995 Mitsubishi Eclipse GST
    · 2G DSM
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  5. bryanwheat

    bryanwheat DSM Wiseman

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    IF you use rtv on this gasket than when you tighten it down it will squish it out a little bit and it can get into the oil passages and clog them up.
     
  6. g4ebguy90

    g4ebguy90 Proven Member

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    Rockford, Illinois
    What I would do, I would get a new gasket, use this stuff called High Tack, available at autozone etc. Real sticky stuff. Put it on the Housing then apply the gasket, put the bolts through, hand tighten them, then torque them in 3 seperate steps.

    If you do decide to use RTV, use one of the Ultra ones that are resistant to oil. Just put on enough to do the job and not go overboard.
     
  7. bryanwheat

    bryanwheat DSM Wiseman

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    You don't need ANYTHING to seal the housing gasket. If it won't seal with just a gasket than you are doing something wrong.
     
  8. g4ebguy90

    g4ebguy90 Proven Member

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    That stuff is more to hold the gasket in place and a light sealant if anything. ( IN regards to High Tack)

    I've used it on everything and never had a problem.

    But I'm not going to argue with you, people use RTV all the time on valve covers. Should it need it no, but it helps alot.
    I should have said Gasket, with RTV. Not just RTV.
     
  9. bryanwheat

    bryanwheat DSM Wiseman

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    The gasket doesn't need to be held in place. Slide the bolts thru the housing, slide the gasket over the bolts. Thread the bolts into the engine. As far as rtv on the valve cover, rtv DOES NOT help a lot. If you know how to install the valve cover properly it will never leak. It doesn't need any help from anything, it just doesn't leak. Adding rtv can actually cause it to leak if anything. There are only a few spots that require rtv on the valve cover. On the corners of the of the outer cam caps, and all the way around the half moon plug.
     
  10. g4ebguy90

    g4ebguy90 Proven Member

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    What your saying should apply to every single gasket. BUT, alot of people use sealants and RTV to kinda go over the 100%.

    In the cases, of valve covers, oil pans, trans pans, etc. RTV can help alot IF there is a issue with leaking.
    Sometimes, even if you do all the steps right stuff still leaks. Either because the pans a little bent, or there is a small crack you cannot see.
     
    Last edited by a moderator: Jul 10, 2014
  11. bryanwheat

    bryanwheat DSM Wiseman

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    Well on these cars you use ONLY rtv on the oil pan so yeah rtv helps with that. As far as transmission gaskets, that is a big no no to use rtv on them. Rtv can clog the trans filter. Some people prefer to do things correctly the first time and do it right. Some people like to bandaid stuff with rtv. If you can't get a gasket to seal without rtv than you aren't doing it right.
     
  12. g4ebguy90

    g4ebguy90 Proven Member

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    So your telling me you will use RTV on a oil pan, but WILL not use it on a trans pan or gasket.

    Most automatics, have a strainer just like are cars have in there oil pans. Which then goes to the filter.

    So I don't see how your justification makes any sense.

    I never recommended RTV either. So get this out of your head. I advised if he did use RTV which one I would recommend.
     
  13. bryanwheat

    bryanwheat DSM Wiseman

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    I use rtv on an oil pan that requires rtv to seal it up when there is no gasket used. For transmissions that require a gasket i do not use nor recommend using rtv. Engines have a strainer to pull the oil from the pan and use a screw on filter to actually filter the oil. The filter can easily be changed. On 95 percent of automatic transmissions the fluid is pulled from the pan directly thru the filter, not a strainer. The filter can not be changed without removing the pan. As I've already said, if you know how to properly install a gasket and torque the bolts properly it will never leak. Did these cars leak oil from the oil filter housing, oil pump, rear seal retainer, and valve cover from the factory, no they didn't. The gaskets were all installed properly from the factory.
     
  14. g4ebguy90

    g4ebguy90 Proven Member

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    Dude.... Listen,

    Idc about the oil filter. What I'm trying to explain to you is, the oil strainer will get clogged as you say just as easily as a transmission filter would. But they don't. Because RTV sticks together.

    Only time I ever found RTV in a pan was when it ripped apart and fell into the pan upon removal.

    You can keep going on and on about how not to use RTV, but yet you say that you use it yourself. So I guess I just don't understand what your trying to do here.

    First you say GASKETS seal themselves and don't need RTV. Then you say that you put some on certain points of the valve cover, and on the plastic or metal moon. So that kinda throws what you just said out in the water.

    Again I never said for him to use RTV, I told him if HE used it based on his own decision, of what kind I would use.

    High Tack would be fine in all occasions though.

    I understand your point, Do not use RTV because it may clog a passage.

    But in my 6 years of automotive repair and 3 years of Full time automotive schooling I have never scene anything bad result from RTV use.
     
  15. bryanwheat

    bryanwheat DSM Wiseman

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    Well first off the holes in the strainer of the oil pickup are probably a thousand times bigger than the holes in an a trans filter, so small pieces could be pulled thru. It is all theoretical, it could happen it probably won't. My main point is that if there is a gasket than there is no need for a sealant of any type.

    As for installing the valve cover. I use rtv where they use it from the factory and where the factory service manual recommends it, nothing more, nothing less. I prefer to rely on the information from the high paid engineers that designed the engine on the best way to seal it up. It happens to work very well. Out of the many many engines that i have put together or changed gaskets on none of them have leaked. If you want to use rtv or any kind of sealant on your gaskets than go ahead. I will advise however not to recommend it to others because people will get the wrong idea from it.
     
  16. g4ebguy90

    g4ebguy90 Proven Member

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    Whatever man I'm going to be that engineer in about 1 year.


    Before you go on and on, where is your proof RTV has ever caused a failure?
    Do you have any proof that it will in fact do as you described?

    I don't think you have any of this.

    All you are doing is stating your opinion.

    I don't even use RTV on valve covers.

    I'm not trying to make you sound stupid. In reality I usually avoid RTV use.
    So stop acting like I use this on everything.

    O and for the fifth time I did not recommend RTV, I recommend High-Tack they are alot different, look into it.
     
  17. bryanwheat

    bryanwheat DSM Wiseman

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    Columbia, Missouri
    Cool story that you are going to be an engineer. That doesn't mean that you will be designing engines for an auto manufacturer in 1 year, LOL. There is a big difference in someone that just got out of school and someone designing engines. Not that it matters, but you are the one that brought it up. I personally haven't had an experience with rtv causing a transmission failure. But atf does break down the rtv which can cause it to get into the transmission. I learned this about 12 year ago when i worked at a transmission shop. It it HIGHLY frowned upon in the industry to use rtv on any part of the transmission for this reason. I have personally seen issues where things have leaked because rtv was used with a gasket vs just using a gasket. As i said, do things the way you want to, i will things according to the service manual, and that is the information that i will post on this site which is the 100 percent correct way to do it. I can take pics of my leak free engine that doesn't have any sealant on the oil filter housing if you'd like.
     
    Teezy likes this.
  18. g4ebguy90

    g4ebguy90 Proven Member

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    Your right probaly not right away, but eventually possibly. Point is I will have the degree to be qualified to it with enough experience. More then likely I will become a service rep.

    Back to technical discussion.
    They make RTV that resist automatic trans fluid. All trans fluid is anyways is oil with lots of additives so I can not believe they would have to hard of a time designing something that is able to resist its properties.

    I also use the correct service manual in all occasions.

    This guy appears to have done it the correct way.
     
  19. miguelmcv

    miguelmcv Supporting Member

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    Fresno, California
    This is going out of subject, Lets focus on the OP Problem.

    To the OP, clean very well the gasket left on the surface, after that, CLEAN AND DRY the surface with Dry Cleaner, Make sure your surface are flat on both side, the front cover and the filter housing, If you get a very clean and DRY area, you will have no problems with leaks, and please, before touching the clean surface, CLEAN YOUR HANDS TO AVOID CONTAMINATION TO THE SURFACE..
     

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    1997 Eagle Talon TSi AWD
    awd · automatic · 2G DSM

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    1995 Mitsubishi Eclipse GST
    manual · 2G DSM
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  20. jimbob_843

    jimbob_843 Proven Member

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    Man just super glue that thing on there. Should hold
     

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    1995 Mitsubishi Eclipse GST
    · 2G DSM
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  21. g4ebguy90

    g4ebguy90 Proven Member

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    Rockford, Illinois
    For the record I made a mistake. I did not notice the OP used RTV on his first application, I thought he was going to use it to try to remedy the current problem.

    In this case, I would not recommend using the RTV at all and try the gasket by itself properly installed. I thought he was going to try using RTV to help the sealing problem.

    Sorry Fellas.
     
  22. JusMX141

    JusMX141 Moderator

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    New gasket, then:

    21-vFMVjcdL._SL500_AA300_.jpg


    [/thread]
     

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    1998 Mitsubishi Eclipse GST
    manual · 2G DSM

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    1997 Mitsubishi Eclipse GSX
    awd · manual · 2G DSM

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  23. gorf

    gorf Proven Member

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    WOW Thanks for the input.

    The last time I replaced the gasket, I put a light bead of red RTV on both sides of the gasket and let it sit before torquing it down. When I pulled the gasket, ALL of the RTV was squished out with none of it on the gasket surface.

    Think I will order a couple of gaskets this time round and try it with no sealant first.

    I will respond once I try it again.
     
    gorf

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    1997 Mitsubishi Eclipse Spyder GST
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  24. 99gst_racer

    99gst_racer Moderator

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    I agree with Justin. New gasket plus copper spray, and you're all set. Avoid RTV and make sure both surfaces are 100% clean and flat.

    Copper spray is one of those thing that is almost never nessacery, but it also doesn't hurt either. I've used it on every OFH that I've installed and I've never had one leak, so I must be doing something right. :)
     
    Last edited by a moderator: Jul 10, 2014

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    1999 Mitsubishi Eclipse GST
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  25. MJcanada

    MJcanada Proven Member

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    Ok so you understand that rtv is only a band-aid to cover up an actual problem. You also understand it can clog up passages which can lead to either engine or tranny failure but you don't warn against not using it.

    Again you say have never seen a failure from using it but you do everything by the book? Contradicting.

    Also 3 years of schooling doesn't mean anything. Used to work with a guy that went to UTI for two years. He was one of the,worst mechanics I've ever seen.

    OP justin, bryan, and 99gst have your answers. Just make sure all surfaces are clean install new gasket sprayed with copper spray. Spray it on in the air then install ofh and forget you ever had a leak.
     

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    1995 Mitsubishi Eclipse GST
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