drivetrain locked solid
+ Reply to Thread
Page 1 of 4 1 2 3 4 LastLast
Results 1 to 14 of 51

Thread:
drivetrain locked solid

  1. #1
    Senior Member
    Join Date
    Nov 2011
    Posts
    136

    Default drivetrain locked solid

    could it be a wear ring problem?

    i was test driving my day cruiser today, ran it for about 10 minutes, when i turned around and headed back it lost 1000 rpms and bogged, i let out of it and it stalled, when i hit the key it was locked up, but had good oil pressure and temperature, forward to getting home


    i pulled the plugs to check for water, it was dry, checked the oil, no water and is full, but it would turn over but still has drag, pulled the bowl and still the same results, ten i started thinking about the wear ring, i tookit apart and noticed that the rubber between the wear ring and pump housing was rubbing the impeller(see pic), but could this cause it to bog and lock solid, tomorrow im going to see if it will crank as is, it has no marks on the impeller or wear ring, only where the rubber is hanging out a little. i have a hard time believing it is the motor.

    can this be my problem?m if not what can be?


  2. Remove Advertisements
    PerformanceBoats.com
    Advertisements
     

  3. #2
    Senior Member DuaneHTP's Avatar
    Join Date
    Dec 2007
    Location
    Shell Knob, MO
    Posts
    1,379

    Default

    Nope, that it ain't it! Check your motor. Sounds like a spun bearing.
    Duane HTP

  4. #3
    Senior Member TNYoungblood's Avatar
    Join Date
    Mar 2010
    Location
    Clarksville, TN
    Posts
    5,109

    Default

    Sounds like a engine problem. Might pull the plugs and try turnin it over. Might as well unhook the driveline also.
    WFLC The REAL #321 Kentucky Drag Boat Association 2016 NJBA 10.0 High Points Champ

  5. Remove Advertisements
    PerformanceBoats.com
    Advertisements
     

  6. #4
    Senior Member
    Join Date
    Nov 2011
    Posts
    136

    Default

    it was still binding with the plugs removed....i meant to add that i did turn it over as is, so im going tio put plugs in it tomorrow and try to start it, would a seized bearing free up over time? i can turn it over freely without straining the starter without the plugs in it now

    also what may be related leading me to believe it is the front pump bearing is a loud shuddering vibration/noise while idling in the water, i only took the boat out twice and heard it both times in the idle zone. but never heard it on the trailer. it would go away with a little throttle.
    Last edited by SimplyOrange; 01-21-2012 at 07:30 PM.

  7. #5
    Senior Member jetboatperformance's Avatar
    Join Date
    Dec 2007
    Location
    Atascadero Calif
    Posts
    7,463

    Default

    Quote Originally Posted by SimplyOrange View Post
    it was still binding with the plugs removed....i meant to add that i did turn it over as is, so im going tio put plugs in it tomorrow and try to start it, would a seized bearing free up over time? i can turn it over freely without straining the starter without the plugs in it now
    Once the Jet is eliminated as a potential issue and if it wasn't hydro locked , I wouldn't spend much more time replacing plugs etc and trying to run it , I would pull the engine and pull the pan , a "piggy backed" or "lapped" rod bearing insert for example could show acceptable oil pressure , if there is actually a lower end failure every running revolution of the engine can potentially cause further damage to the crank Tom

    BTW what engine?

  8. #6
    Senior Member
    Join Date
    Nov 2011
    Posts
    136

    Default

    Quote Originally Posted by jetboatperformance View Post
    Once the Jet is eliminated as a potential issue and if it wasn't hydro locked , I wouldn't spend much more time replacing plugs etc and trying to run it , I would pull the engine and pull the pan , a "piggy backed" or "lapped" rod bearing insert for example could show acceptable oil pressure , if there is actually a lower end failure every running revolution of the engine can potentially cause further damage to the crank Tom

    BTW what engine?
    bbc 454, if i put the plugs in and it doesnt turn over then i am going to flip it over and pull the pan, it didnt hydrolock, it has no water in the cylinders and even after pulling the plugs it wouldnt turn over, it only turned over after removing the impeller, but there was elapsed time for something to cool down and let loose.

  9. #7
    Senior Member cyclone's Avatar
    Join Date
    Dec 2007
    Posts
    3,620

    Default

    Disconnect the driveline and see what happens

  10. #8
    Senior Member DuaneHTP's Avatar
    Join Date
    Dec 2007
    Location
    Shell Knob, MO
    Posts
    1,379

    Default

    Siezed or stacked Bearings will let it turn over again after it cools off. Like others have said, pull the pan and do not start it again. Smell the oil. Usually the oil in an engine that has had bearing filure has a slight burnt smell to it.
    Duane HTP

  11. #9
    Senior Member jetboatperformance's Avatar
    Join Date
    Dec 2007
    Location
    Atascadero Calif
    Posts
    7,463

    Default

    Quote Originally Posted by SimplyOrange View Post
    bbc 454, if i put the plugs in and it doesnt turn over then i am going to flip it over and pull the pan, it didnt hydrolock, it has no water in the cylinders and even after pulling the plugs it wouldnt turn over, it only turned over after removing the impeller, but there was elapsed time for something to cool down and let loose.
    Like said ,often times a "siezed" (spun rods or mains) engine will somtimes crank and even get a re-lite after cool down for a short time then sieze again , re the jet frt thrust bearing if seen these blued, dehydrated and the individual Balls split but still turn likley is the suction housing paint around the bearing would be blistered along with other symtoms if the thrust bearing had siezed

    Heres the result of "continued operation" after the onset of an isolated bearing failure

  12. #10
    Senior Member
    Join Date
    Nov 2011
    Posts
    136

    Default

    ok, im going to go ahaead and pull the motor and pan then, i cant see the thrust bearing without doing it anyways with my 3 point system. i hope its not the motor but if it is, im fixing it with HP

  13. #11
    PASO ROBLES CA cougar63's Avatar
    Join Date
    Aug 2008
    Location
    PASO ROBLES
    Posts
    672

    Default

    Jesus Tom ,who's motor is that? I cleaned up the SST and looks pretty good. And like the others said,dont waste your time,pull the motor.

  14. #12
    B1 Racing cs19's Avatar
    Join Date
    Dec 2007
    Posts
    6,523

    Default

    Disconnect the driveline if there is good access. If the bell housing covers the driveline it's probably easier to r&r the engine. Hard to get those 4 bolts through that tiny inspection cover.
    B1Racing.net

  15. #13
    B1 Racing cs19's Avatar
    Join Date
    Dec 2007
    Posts
    6,523

    Default

    Investigate that wear ring insulator also. It's sticking out pretty good. Might be able to just trim
    it if everything looks ok.
    B1Racing.net

  16. #14
    Senior Member jetboatperformance's Avatar
    Join Date
    Dec 2007
    Location
    Atascadero Calif
    Posts
    7,463

    Default

    Quote Originally Posted by SimplyOrange View Post
    ok, im going to go ahaead and pull the motor and pan then, i cant see the thrust bearing without doing it anyways with my 3 point system. i hope its not the motor but if it is, im fixing it with HP
    Thats the Attitude (more HP)

    Quote Originally Posted by cougar63 View Post
    Jesus Tom ,who's motor is that? I cleaned up the SST and looks pretty good. And like the others said,dont waste your time,pull the motor.
    Greg thats an extreme example of a failure from my other work , but all to often what starts as a "knock" can end up as a rod thru the block if not addressed

+ Reply to Thread
Page 1 of 4 1 2 3 4 LastLast

Quick Reply Quick Reply

Register Now

Please enter the name by which you would like to log-in and be known on this site.

Please enter a password for your user account. Note that passwords are case-sensitive.

Please enter a valid email address for yourself.

Please select your insurance company (Optional)

Log-in


Tags for this Thread

Digg This Thread

Posting Permissions

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

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95