F800GS Leaking / Seeping valve cover gasket

Discussion in 'Parallel Universe' started by RobStar, Dec 27, 2009.

  1. RobStar

    RobStar Still On Training Wheels

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    I know there's another thread in Ride Reports discussing ChiTown's leaking valve cover gasket but that went from a great ride report to mechanic pissing match.

    Anyway, a few days ago a friend noticed some slight oil seepage coming from the upper left hand side of the engine on my F800GS. It's just started in the last few days and my bike has about 9900 miles on it. I'm calling it a seep rather than a leak at this point since it is very very slight and not dripping down under the bike or coating too much of the engine and the dipstick is still showing full.

    I've been changing oil and filter every 3000 miles and at 6000 switched over the Amsoil synthetic so at this point I'm into my second round of Amsoil.

    Just thought I'd post this up for future reference and to see if anyone else has run into this. I'll take it to the dealer when they open on Tuesday morning and report back with the results.

    RobStar
    #1
  2. Bayner

    Bayner Long timer

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    Head gasket is lower on the bike. Mine leaks from the very top seal, what I would call a valve cover on an auto engine. Has been slowly getting worse and now making a total mess (even getting to the ground) so it will have to be dealt with... I find it strange since it appears to be a nice moulded synthetic gasket.
    #2
  3. tmex

    tmex Long timer

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    Something is happening in the upper left area on mine. Lots of crud is collecting there. If I get around to washing the bike I'll check it out and post results. Not enought leakage to get to the bottom of the engine or the ground. Got a three day ride planned before washing and servicing. Current mileage ~7000.
    #3
  4. transalp russ

    transalp russ Gadget Addict

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    It seems many F800GSs are leaking from here, it's the rocker box gasket, certainly the dealers in the UK are aware of this, mine was fixed for free in few hours.

    I'm glad mine developed a leak here, I was feeling left out with everyone else having problems with their F800GS and mine had been trouble free! :rofl
    #4
  5. johngil

    johngil Reseda, CA

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    Mine is weeping from the top left as well.
    It's a Harley in training.
    #5
  6. never.ride

    never.ride Been here awhile

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    Hey guys. I had the same thing on my bike. I noticed it at the start of my Baja trip in November. Did the trip, kept an eye on it and it never got worse. I would wipe it clean and it would leak from the left side and then half way down the head by the end of each day.

    Got back to Colorado, took the bike in for the 6000 mile service and told them what was up. They were VERY quick to say, oh yeah, that's a warranty issue.

    So, they replaced the valve cover gasket and I am good to go. No issues at all now. They said the leaking that I was seeing (and that you guys are seeing) is not too much of an issue if you do not get the bike in right away. My 1500 miles in Baja is a testament to that.

    It seems to me it is a know issue, at least at my dealer. Brad and the guys at Northern Colorado Euro were great and got me dialed in with ease. I actually called them when I was in Baja and asked about the leaking and they put my mind to ease about the issue.

    So, I would stop by your dealer and see what they say :D
    #6
  7. Ducksbane

    Ducksbane Quaaack!!!

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    They (almost) all do that! :lol3

    (Mine does ... not a problem so far and valve cover has to come off for 20,000 Km service)
    #7
  8. RobStar

    RobStar Still On Training Wheels

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    Sorry, my mistake on the head gasket... I'm a camera operator not a very good wrench operator! :cry

    I tried to correct the Thread Title in advanced editing option but it didn't work. Maybe someone can help me track down a Moderator to change it from head to valve cover?

    Mods... anyone?

    Thanks!

    RobStar
    #8
  9. GB

    GB . Administrator

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    Fixed it for you. A friend's 800ST was seeping there and was replaced at the 20,000km service.
    #9
  10. RobStar

    RobStar Still On Training Wheels

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    Thanks for the title fix!

    If it's "common" with this engine type / model any ideas what causes it? Is it a poor seal quality and/or tightening from the factory? Is it known to continue on after the repair?

    IMO, I want it repaired ASAP rather than wait until the 20k service, plus I don't want oil build up all over my engine.

    Thanks!

    RobStar
    #10
  11. mapuda

    mapuda Crash Tested

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    I had mine leak a little. It is a 2009 with 11K miles. Mine was from overfilling the oil when I changed it. I had about 1/2 over and when I drained the excess out it stopped leaking.

    I will keep an eye on it.
    #11
  12. Bayner

    Bayner Long timer

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    Cool, thanks Joel.
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  13. Dieselboy

    Dieselboy Journey not Destination

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    Yup. Got that T-shirt too. It was a quick warranty fix. Stated culprit: hardening valve gasket sealer used by the factory. It has not been an issue since that fix over 30,000 miles past.
    #13
  14. kkug

    kkug Been here awhile

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    Ok mine was leaking also. When I took the cover off to check the valve clearence I put on Permentex Right Stuff sealant.

    I know I should have went to the dealer and donated a bunch of money to them for a new gasket and seals.

    But I beat to a different drum. So so far no leaks.
    #14
  15. RAD800

    RAD800 Been here awhile

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    Im really having trouble with this oil leak, i temporarily fixed it at 7000, bike shop looked at it at 10,000, it started at 19,000 fixed shortly after and now at 28000 its leaking again. :cry
    Just a stab in the dark but i think there is actually something wrong with, either the cover or the machining of the head itelf.
    #15
  16. Indy Unlimited

    Indy Unlimited Long timer

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    #16
  17. Zacharia_11

    Zacharia_11 11th Assassin

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    Cover could be tweaked a little, I ride a Harley... On the HD if its not flat, it'll leak again after you change the gasket. Has the fix till now just been a new gasket?

    The dealership or bike shop should be able to check to see if its flat/flush, on the HD you could warp it if you didn't fasten it down in the correct sequence to the correct torque specifications.
    #17
  18. RAD800

    RAD800 Been here awhile

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    Im pretty sure they just removed the silicone sealant i used the first time and fixed it the same way then changed the gasket at 20,000. both times they checked the cover and there were no problems.
    At the moment it seaped and stopped so im leaving it, watching it and hoping it dosn't leak for a while.
    #18
  19. JRWooden

    JRWooden Long timer

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    As I recall, in ChiTown's case the cover was warped or incorrectly machined, and was replaced. Hopefully for most of us, a bit of hi-temp RTV will fix things up....

    Seems odd to me that the manual calls for the sealant to only be used on the left-hand half of the gasket ... why NOT put it all the way around....??? :huh

    Joel: Thanks for the notes on how to get to it ....
    I'm coming up on the 12K mark and will probably be in there to check the valves, and hope that I don't need to swap out any "oil sinks" :lol3

    Just as note, Rev. #4 of the manual calls for this sealant, don't know if it is hardening or non-hardening :

    <TABLE border=1 rules=all cellSpacing=0 borderColor=black cellPadding=0 width="100%" frame=box valign="TOP"><TBODY><TR><TD style="PADDING-BOTTOM: 1mm; PADDING-LEFT: 1mm; PADDING-RIGHT: 1mm; PADDING-TOP: 1mm" class=fOne vAlign=top>Bond 1209


    </TD><TD style="PADDING-BOTTOM: 1mm; PADDING-LEFT: 1mm; PADDING-RIGHT: 1mm; PADDING-TOP: 1mm" class=fOne vAlign=top>Surface sealant


    </TD><TD style="PADDING-BOTTOM: 1mm; PADDING-LEFT: 1mm; PADDING-RIGHT: 1mm; PADDING-TOP: 1mm" class=fOne vAlign=top>07 58 9 062 376


    </TD></TR></TBODY></TABLE>
    #19
  20. JRWooden

    JRWooden Long timer

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    Joel:

    Thanks!

    I like both of your theories!

    I remember all kinds of gyrations when they first started putting Aluminum heads on cast iron blocks as a result of the differential rates of thermal expansion .... the "dry slide" on the gasket seems "logical" ...

    And the deep water crossings have always scared me due to the sudden "quench" ....
    #20