Thread: Leaking gaskets need diagnosed (with pics)

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  1. #1 Leaking gaskets need diagnosed (with pics) 
    GT Level Member 2FASTGTP's Avatar
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    Hey guys, I was just checking up on my engine bay with a LED flashlight in order to locate any leak spots. I found a couple and one that I would like someone to tell me what gasket it is thats leaking. The first picture I believe to be the valve covers.



    This next picture I need help diagnosing. Thanks!





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  2. #2 Re: Leaking gaskets need diagnosed (with pics) 
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
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    First is the valve cover, correct.

    The second just looks like a very very minor seep from the trans case gasket. I bet if you cleaned that one, it wouldnt look like that for another year or even a few years. It just looks worse because the dirt has stuck to it and built up.

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  3. #3 Re: Leaking gaskets need diagnosed (with pics) 
    Turbo is the way to go. BillBoost37's Avatar
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    First I could see being valve cover or lower intake gaskets. The second, we can see seepage coming in from out of the view. This could be the LIM gasket, could be the turn around on the end of the LIM, and it could be a trans casing seepage.

    Trans seepage is not very likely in this area, although a little fluid may have flung up and found the breather hole of the trans. I'm doubtful that it's trans. And if you are paranoid and go check your trans fluid..I bet it's not 100% filled..but that's normal.
    I drink..so consider that when reading my posts.

    2010 Audi A6 Dual IC's
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  4. #4 Re: Leaking gaskets need diagnosed (with pics) 
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    I agree follow that seepage off to the left from second pic. Take your air cleaner off then look under the lower intake manifold. That's where mine was leaking oil.
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  5. #5 Re: Leaking gaskets need diagnosed (with pics) 
    GT Level Member 2FASTGTP's Avatar
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    Ok thanks guys. Im gonna go ahead and replace my LIM gasket, SC gasket, and valve covers. I watched a video on YouTube about the LIM replacement but Im still not too confident. Is it a tough job for a rookie? I feel like if I can just get the SC then it would be easy from there.
    Last edited by 2FASTGTP; 06-11-2014 at 05:06 PM.
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  6. #6 Re: Leaking gaskets need diagnosed (with pics) 
    Turbo is the way to go. BillBoost37's Avatar
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    Doing this job is turning bolts counter clockwise to loosen, cleaning parts and tightening bolts by turning them clockwise. If you look at one bolt at a time instead of the big picture, it'll look and be easy.

    If you let yourself get overwhelmed by the large picture, pop back on the forum. There's nothing we can't help with.
    I drink..so consider that when reading my posts.

    2010 Audi A6 Dual IC's
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  7. #7 Re: Leaking gaskets need diagnosed (with pics) 
    GT Level Member 2FASTGTP's Avatar
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    Quote Originally Posted by BillBoost37 View Post
    Doing this job is turning bolts counter clockwise to loosen, cleaning parts and tightening bolts by turning them clockwise. If you look at one bolt at a time instead of the big picture, it'll look and be easy.

    If you let yourself get overwhelmed by the large picture, pop back on the forum. There's nothing we can't help with.
    Awesome! sounds great, thanks!

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  8. #8 Re: Leaking gaskets need diagnosed (with pics) 
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    From reading some write ups and watching videos, some people remove a couple of pullies but I don't see how that is necessary. Is that a must?

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  9. #9 Re: Leaking gaskets need diagnosed (with pics) 
    Turbo is the way to go. BillBoost37's Avatar
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    The only pulley you would have to remove is one on the SC tensioner to be able to remove the black bracket that overhangs the valve cover.
    I drink..so consider that when reading my posts.

    2010 Audi A6 Dual IC's
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  10. #10 Re: Leaking gaskets need diagnosed (with pics) 
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    Would these plugs need to be removed that connect to the fuel rails?



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  11. #11 Re: Leaking gaskets need diagnosed (with pics) 
    Killa Bee Scottydoggs's Avatar
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    nope. only if you are removing the fuel rail. valve cover removal they stay put.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  12. #12 Re: Leaking gaskets need diagnosed (with pics) 
    Killa Bee Scottydoggs's Avatar
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    oh, and de grease your engine before working on it, the day before. working on a clean engine is much nicer.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  13. #13 Re: Leaking gaskets need diagnosed (with pics) 
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    I thought I needed to move the fuel rail though. Its not just the valve covers im doing but also the LIM. And yeah I will degrease it and probably gonna clean everything up real nice while I have it off the car.

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  14. #14 Re: Leaking gaskets need diagnosed (with pics) 
    Killa Bee Scottydoggs's Avatar
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    no, clean it first, then do the lim job. every plug you see will need to come off to do the lim, off the TB and lim, and injectors, the map and evap, the boost by pass solenoid. the alt, take it off too. and the vac lines.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  15. #15 Re: Leaking gaskets need diagnosed (with pics) 
    GT Level Member 2FASTGTP's Avatar
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    Ok so then the plug in the picture will need to be removed correct? That was the only one I was unsure of

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  16. #16 Re: Leaking gaskets need diagnosed (with pics) 
    Killa Bee Scottydoggs's Avatar
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    yes unplug the injectors, un bolt the 4 corners of the rail and then pull up on the rail, the injectors will pull from the heads.

    you can flip the rail to the side, or take the lines off the rail with a quick disconnect tool.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  17. #17 Re: Leaking gaskets need diagnosed (with pics) 
    Turbo is the way to go. BillBoost37's Avatar
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    Whoa.. lemme lay this out a bit more straight forward. The vid has a lot extra in it.

    You want to
    Disconnect negative battery cable (move it away from battery where it connects so it can't reconnect itself gently)
    Remove alt
    Disconnect three sensors on throttle body
    Disconnect electrical on front of super charger by throttle body (that's called the boost soleniod)
    Disconnect the EGR electrical by the back side of the TB
    Disconnect the 6 fuel injectors by pushing that wire toward the injector and pulling up... that releases it's clip w/o removing the wire clip itself
    Disconnect the 1 connector on the MAP sensor (behind supercharger by bracket from alt to SC)
    Drain coolant
    Lift fuel rail out of way (4 10mm nuts at corners of rail, plus 1 13mm bolt on top of sc) If you don't have a fuel line tool..gently lay the rail out of the way.
    Remove supercharger (yes the EGR shield also needs to come off to get the SC unbolted)
    Good time to unbolt and clean the throttle body
    Remove 3 bolts holding the alt bracket to the engine (this is the bracket it sits on) You may need to wiggle/gently coax to get the coolant elbows to release)
    Remove LIM (12 3/8" bolts, I mention that because when you go to torque them..10mm socket will spin)
    Clean and let's reassemble

    LIM bolts get a little loctite or liquid teflon with ptfe to seal them, torque to 15ft lbs on metal LIM gaskets, 13 ft lbs on plastic gaskets
    SC bolts are 17ft lbs.
    Everything else is...reasonable. Don't try to kill all the bolts. Some are smaller and can't take it.
    I drink..so consider that when reading my posts.

    2010 Audi A6 Dual IC's
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  18. #18 Re: Leaking gaskets need diagnosed (with pics) 
    GT Level Member 2FASTGTP's Avatar
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    Bill, thanks alot for that helpful write up. I went through and understood a majority of it while looking at my car and the only things I was not able to locate were the EGR and the MAP. Is this the MAP?



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  19. #19 Re: Leaking gaskets need diagnosed (with pics) 
    Turbo is the way to go. BillBoost37's Avatar
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    Ooops..forgot to tell you to take the evap off. That's evap. Map is down below that and a smidge more to the driverside. It's also bolted to the SC. EGR is that big thing with connector on top right behind the TB towards the firewall.
    I drink..so consider that when reading my posts.

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  20. #20 Re: Leaking gaskets need diagnosed (with pics) 
    Killa Bee Scottydoggs's Avatar
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    those are pinch and pull ends on the evap solenoid iirc.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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