Page 1 of 2 1 2 LastLast
Results 1 to 10 of 15
  1. #1
    BlackHawk's Avatar
    Join Date
    Mar 2006
    Location
    AL
    Posts
    959
    +1
    2

    Oil / head gasket probme

    Did some testing yesterday....all looked good except for two things.

    I was blowing lots of smoke out of my catch can filter, and the catch can had about an inch of oil in it. only about 15 min of riding.

    Also I have noticed a small amount of oil leaking at the rear left corner for my head gasket.

    The oil in the catch can seems to be straight oil...if any fuel, very little...engine temps about 180...

    I did double check the head bolts (re torqued them), checked the tops valve (swapped it with a new one), checked the camshaft positioning sensor, all nice and tight.

    Any other suggestions?


  2. #2
    Duke's Avatar
    Join Date
    Jul 2006
    Location
    Florida
    Posts
    10,004
    +1
    406
    Quote Originally Posted by BlackHawk View Post
    Did some testing yesterday....all looked good except for two things.

    I was blowing lots of smoke out of my catch can filter, and the catch can had about an inch of oil in it. only about 15 min of riding.

    Also I have noticed a small amount of oil leaking at the rear left corner for my head gasket.

    The oil in the catch can seems to be straight oil...if any fuel, very little...engine temps about 180...

    I did double check the head bolts (re torqued them), checked the tops valve (swapped it with a new one), checked the camshaft positioning sensor, all nice and tight.

    Any other suggestions?
    Is the metal washer still in the plastic cap on the timing sprocket?

    Leakdown?

    How do you "retorque" a stretch to yield SD headbolt?

    Coolant bottle staying full?
    Last edited by Duke; 01-04-2010 at 09:54 AM.

  3. #3
    BlackHawk's Avatar
    Join Date
    Mar 2006
    Location
    AL
    Posts
    959
    +1
    2
    Didn't do a leak down test...will do it soon.

    yes the metal washer is in on the sprocket...

    I loosened one bolt at a time and re torqued it according to the manual procedures...30 lb plus 120 than additional 90....(well just did 210).

    Running a open loop so no clue about bubbles in the coolant.

  4. #4
    Vern's Avatar
    Join Date
    May 2005
    Location
    Grand Haven, MI
    Posts
    3,594
    +1
    128
    Was the motor just rebuilt? Another possibility if compression is good, is that the oil pressure regulator/bypass was overtightened/crushed or is stuck. This will allow oil pressure to rise too high, causing the exact symptoms you have.

  5. #5
    BlackHawk's Avatar
    Join Date
    Mar 2006
    Location
    AL
    Posts
    959
    +1
    2
    Yup sure was...how do I check?

  6. #6
    Vern's Avatar
    Join Date
    May 2005
    Location
    Grand Haven, MI
    Posts
    3,594
    +1
    128
    It is not uncommon for this to be overtightened, crushing the 'cage' and leading to your issues. Easiest way to check is to attach a mechanical oil pressure gauge and check your oil pressure ... it is a bit different depending on what year your ski is, and where you attach the gauge to the engine. Best thing is to follow the procedure in the manual for your year of ski. Different years and different checkpoints will yield different oil pressure readings, but what I think you will find is that oil pressure rises too high as rpms go up.

  7. #7
    BlackHawk's Avatar
    Join Date
    Mar 2006
    Location
    AL
    Posts
    959
    +1
    2
    What would be considered too high?

  8. #8
    Vern's Avatar
    Join Date
    May 2005
    Location
    Grand Haven, MI
    Posts
    3,594
    +1
    128
    Not sure ... my manuals are in the barn with my ski ... Couple threads that may help too:

    http://greenhulk.net/forums/showthre...light=pressure

    http://greenhulk.net/forums/showthre...light=pressure

  9. #9
    BlackHawk's Avatar
    Join Date
    Mar 2006
    Location
    AL
    Posts
    959
    +1
    2
    Did an oil pressure test today....
    Engine cold idle 77psi
    Engine at 176F idle 75psi
    Engine at 4000rpm 90psi

    The pressure looks to be really up there....would it run that high if the oil pressure regulator is bad or stuck open?

  10. #10
    Vern's Avatar
    Join Date
    May 2005
    Location
    Grand Haven, MI
    Posts
    3,594
    +1
    128
    Pulled from another post from the manual:

    ALL 1503 4-TEC SUPERCHARGED ENGINES
    Idle (cold) 400 - 497 (58 - 72)
    for a very short time

    Idle (at 80°C (176°F) Min. 138 (20)

    4000 - 7500 172 - 241 (58 - 72)

    Test at the Cylinder Head Location
    Remove plug located on cylinder head and install
    gauge

    Yours sounds high ... where did you screw in the gauge?

Page 1 of 2 1 2 LastLast

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Collapsed Oil Filter, Possible Leaky Head Gasket
    By BallaRXP in forum 4-Tec Performance
    Replies: 9
    Last Post: 10-07-2016, 12:09 PM
  2. weber 750 water in oil, head gasket, oil seal
    By SAM M in forum MSX/Matrix
    Replies: 9
    Last Post: 09-06-2016, 10:42 AM
  3. Replies: 1
    Last Post: 06-29-2006, 06:25 PM
  4. thinner head gasket wont go on right
    By PAINKILLER in forum 4-Tec Performance
    Replies: 12
    Last Post: 05-15-2006, 08:58 AM
  5. Rotax Racing Head Gasket good or bad
    By Jrsrxp in forum 4-Tec Performance
    Replies: 2
    Last Post: 09-06-2005, 08:33 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •