Difficult starting
+ Reply to Thread
Results 1 to 6 of 6

Thread:
Difficult starting

  1. #1
    Junior Member
    Join Date
    May 2011
    Location
    Capistrano Beach
    Posts
    7

    Default Difficult starting

    Hello all,

    New to me 1991 Commander jet boat is difficult to start. Replaced batteries yesterday and it takes both batteries to turn the engine over. Shouldn't it start on one battery? Brand new Exides. Engine is 454 with 9.5:1 compression, so it's not a really high compression engine.

    Any ideas/suggestions where I should start looking?

    Thanks, Leo

  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

    Put a load tester on the starter and see how many amps the starter is drawing. Is this a cold start problem or a hot start problem after you have been using it?
    Duane HTP

  4. #3
    RAT PATROL rich s's Avatar
    Join Date
    Feb 2008
    Location
    S central Pa.
    Posts
    268

    Default

    I would pull the spark plugs out ,turn it over with a long ratchet/torque wrench on the crank bolt and see how it feels.
    note on the Torque wrench when it clicks.

  5. Remove Advertisements
    PerformanceBoats.com
    Advertisements
     

  6. #4
    Senior Member
    Join Date
    Feb 2009
    Location
    MANTECA
    Posts
    511

    Default torque wrench?

    Quote Originally Posted by rich s View Post
    I would pull the spark plugs out ,turn it over with a long ratchet/torque wrench on the crank bolt and see how it feels.
    note on the Torque wrench when it clicks.
    Just wondering what would be the normal torque required to turn over a big block? Never thought of checking it, but I would think that things like valve springs, ring type etc.... would play a roll as well.

    Chris

  7. #5
    Senior Member W.O.T's Avatar
    Join Date
    Jan 2008
    Location
    Campo Ca
    Posts
    988

    Default

    Clean up your wiring if its sloppy. Fixed alot of peoples boats with horrible wiring and dirty connections.

  8. #6
    Senior Member
    Join Date
    Apr 2008
    Location
    valley springs, ca
    Posts
    1,244

    Default

    mine was doing same thing last year. I put a new starter in it and fixed problem. i dont suggest a rebuilt from autozone, but if you do ask for one from a 72 chevelle 454. they were higher compression engines and starters had more torque. also I use plugs from same year car seems to be hotter spark than later model smog 454. the engine gurus would know more.

+ Reply to Thread

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