VVT hub seal wear?
Username
Do you already have an account?
Forgot your password?
  • Log in or Sign up

    Results 1 to 13 of 13
    1. #1
      Junior Member
      Join Date
      Feb 2014
      Posts
      16

      VVT hub seal wear?

      Greetings,
      I've been battling an oil leak under the timing belt cover and was wondering if its normal to have a groove on the VVT hub surface that the seal rides on, pictures here:

      I've already changed out both intake and exhaust cam seals, replaced the PCV (was due anyway) and resealed the cam cover. I'm at the end of my rope on this one and the "boss" is getting tired of me being out in the shop!
      Thanks

    2. Remove Advertisements

      Advertisements
       

    3. #2
      Member ggleavitt's Avatar
      Join Date
      Jun 2005
      Location
      Seattle
      Posts
      2,617
      It's the exhaust pulley, correct? I'm having an issue very similar to yours on the XC90 forum. Did PCV around 40k ago, did both seals last weekend (new T-belt and tensioner as well, both were oil fouled) and still have a leak from the upper left side when the engine is running. I have a new exhaust pulley coming in the next day or so. Have new seals coming as well (just to play it safe) but I'm pretty confident it's the pulley. https://forums.swedespeed.com/showthr...Leak-2005-2-5T, check this thread before the weekend is over to see if it's resolved.

    4. #3
      Junior Member
      Join Date
      Feb 2014
      Posts
      16
      Quote Originally Posted by ggleavitt View Post
      It's the exhaust pulley, correct? I'm having an issue very similar to yours on the XC90 forum. Did PCV around 40k ago, did both seals last weekend (new T-belt and tensioner as well, both were oil fouled) and still have a leak from the upper left side when the engine is running. I have a new exhaust pulley coming in the next day or so. Have new seals coming as well (just to play it safe) but I'm pretty confident it's the pulley. https://forums.swedespeed.com/showthr...Leak-2005-2-5T, check this thread before the weekend is over to see if it's resolved.
      Thanks for the reply. Sounds familiar, replaced front and rear cam seals (after re-sealing the cam cover, long story there...), new water pump, pcv system and what do you know - still leaks! freaking awesome. Anyways, gonna dye test next to verify it is coming from the exhaust side as it was pretty nasty in there and hard to tell where the oils coming from. Do you think yours is leaking past the seal because it's worn like mine, or is it leaking from somewhere else? Look forward to hearing how yours goes.

    5. Remove Advertisements
      SwedeSpeed.com
      Advertisements
       

    6. #4
      Junior Member
      Join Date
      Feb 2014
      Posts
      16
      pulled everything back apart tonight and I'm pretty sure that the exhaust VVT unit is the culprit in this oil leak also. I notice before loosening the center screw that the VVT unit would move in and out quite a bit and I could feel the hub coming out of and going back into engagement with the lip seal. Explains why oil wasnt getting flung all over the place by the pulley and just pouring down the block, it wasnt even touching the seal. Looks like I'll contact lisle vovlo as mentioned in ggleavitt's post.

    7. #5
      Member ggleavitt's Avatar
      Join Date
      Jun 2005
      Location
      Seattle
      Posts
      2,617
      You'll be particularly impressed with how much the new hub DOES NOT move in and out. Saw some amount of play on the intake when I was in but not nearly (maybe 1/2) what I was seeing with the exhaust. I'm at 140k, perhaps a new intake hube in the next 50k? We'll see. Good luck!

    8. #6
      Member aggrorider1's Avatar
      Join Date
      Dec 2011
      Location
      Windsor Locks
      Posts
      1,396
      I wouldn't wait on replacing the hubs. They go bad and move and it can kick the belt and make it rub and wear out.

    9. #7
      Junior Member
      Join Date
      Aug 2012
      Location
      Edmonton, AB, Canada
      Posts
      101
      So the takeaway from this thread is to check for play in the vvt hubs when doing a timing belt change. If the exhaust moves in and out more than the intake, get a new one. Good to know. Thanks.
      2006 XC90 V8

    10. #8
      Junior Member
      Join Date
      Mar 2014
      Location
      Troutman NC
      Posts
      31
      Looks like the hub is pushing outwards.. Mine had some play in it when I did the belt and tensioner, idler, water pump a couple weeks ago. I could move mine out about an eighth of an inch maybe more. Under load and higher RPM's it walks out just enough to allow the oil to leak. Replaced the hub and the leak is gone. Luckily I suspected this was the case beforehand, and had already obtained the cam seals and the hub. Pretty eays job if you have access to a cam holder.

    11. #9
      Junior Member Mrsideways's Avatar
      Join Date
      Jan 2013
      Location
      Orlando Florida
      Posts
      889
      Wait till you see the price. I see this all the time and on cars over 120k miles getting cam seals pretty much 100% of the time the VVT pulleys get replaced. The price of the pulleys is a real price shock though.
      2006 Honda S2000 SCCA STU car with K24 swap 317whp
      2003 Mini Cooper S Rotrex swap 400hp
      2014 Rebel Blue S60 R Design 13.0 @ 106.29 mph IPD rear bar, Brembo GT Big Brake kit w/carbotech 1521 pads, K&N filter, Ferrita Cat-Back Exhaust, Polestar Ohlins Shocks and Struts, Polestar Springs.

    12. #10
      Junior Member technicalminded's Avatar
      Join Date
      Jan 2010
      Location
      Rockville, MD
      Posts
      447
      ^Agreed on the hub leaking. I'm seeing this failure more and more on older/higher mileage p2's. The price has made it a deal breaker more than once.
      Service technician - Scandinavian Imports - Rockville, MD - Check us out on facebook
      Stable: '07 M66 SR saphkap - Pride and joy '96 M56 855 Platinum - Daily driver/rolling project car '09 S40 R design - Hers.

    13. #11
      Junior Member
      Join Date
      Jun 2012
      Location
      CT
      Posts
      93
      The wear in your photo does not look normal. My CVVT hubs were leaking oil on the backside from the internal seal, however there was no wear like your showing when they were replaced at 120,000 miles. If the cost of these is a deal breaker for most people on this car, then what have you had to replace? So far that was a pretty cheap fix compared to replacing the Bevel Gear.
      2006 S60R Sonic Blue/Nordkap ||K&N Filter // IPD Strut Bar conversion kit // IPD Track Spec Sway Bars// IPD Trans Torque Mount// IPD Upper Engine Mount// IPD HD Coil Packs// IPD Satin Door Lock Pins//
      Waiting to be installed: Snabb Turbo Intake, EST 3" Downpipe

    14. #12
      Junior Member
      Join Date
      Jul 2012
      Location
      Davenport, CA
      Posts
      453
      Quote Originally Posted by Mrsideways View Post
      Wait till you see the price. I see this all the time and on cars over 120k miles getting cam seals pretty much 100% of the time the VVT pulleys get replaced. The price of the pulleys is a real price shock though.
      Howdy. What are part#s? I have vida just havent spent enough time w it yet to get this info. Thx
      04 V70R M66

    15. #13
      Member ggleavitt's Avatar
      Join Date
      Jun 2005
      Location
      Seattle
      Posts
      2,617
      Looks like intake is PN 8642284 and exhaust is PN 9497786.

      I'm still on the fence as to whether is was the internal seals in the hub or the in/out play that was really the source of the leak.

    16. Remove Advertisements

      Advertisements