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  1. #1
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    Default Crank pulley bolt size?

    What size is the crank pulley bolt just wondering so I can buy all the shit I need at once thanks for any help

  2. #2
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    U dont need to buy another one brother, ur suppost to usee the stock bolt

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  3. #3
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    Ok lemme rephrase that what is the socket size that I need to get that bolt off and what are the torque specs?

  4. #4
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    Here's some torque info, as for socks size, if you have a socket set you should be fine. I want to say 20mm? Sorry I did mine a month ago.

    7. To torque the pulley down we used these two steps:

    a) Wedge a ratchet extension through the one of the holes in the UR pulley and one of the grooves in the engine cover. This will prevent the crankshaft from moving. With a torque wrench tighten the crankshaft bolt to 30-34 ft-lbs of torque.

    b) The head of the crankshaft pulley bolt has six lines, each representing 60 degrees of rotation. Choose one of the lines then place a mark on the UR pulley at that line (red mark pictured). Then mark the line on the bolt (we used a red mark) 60 degrees counterclockwise away from the mark on the pulley. Now torque the pulley bolt until both red marks meet. We were not able to get the red marks to meet, so we got them as close to each other as possible.

    2J Racing high power cold air intake, Nismo header, Nismo lower tie bar(not installed yet), Nismo rear sway bar,Nismo short shifter, 2J midpipe,stromung exhaust, Ksport coilovers, 2-J racing 10mm anti lift kit,2-J lightweight crank and power steering pulley, FI-R shifter bushings, Rob's air diversion panel, Rob's LTB wheel hop aid, More to come!

    Bsr, j30 front calipers yet to be installed…

  5. #5
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    is this something i should be putting loctite on when reinstalling the bolt/nut whatevr?

  6. #6
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    I didn't, but you could if you wanted to.

    2J Racing high power cold air intake, Nismo header, Nismo lower tie bar(not installed yet), Nismo rear sway bar,Nismo short shifter, 2J midpipe,stromung exhaust, Ksport coilovers, 2-J racing 10mm anti lift kit,2-J lightweight crank and power steering pulley, FI-R shifter bushings, Rob's air diversion panel, Rob's LTB wheel hop aid, More to come!

    Bsr, j30 front calipers yet to be installed…

  7. #7
    Senior Member Bob
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    don't locktite it. it will be a pain in the ass to get off in the future. i believe its a 17mm

  8. #8
    Apprentice Robzilla (robert)
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    Quote Originally Posted by dragonfire2002 View Post
    Here's some torque info, as for socks size, if you have a socket set you should be fine. I want to say 20mm? Sorry I did mine a month ago.

    7. To torque the pulley down we used these two steps:

    a) Wedge a ratchet extension through the one of the holes in the UR pulley and one of the grooves in the engine cover. This will prevent the crankshaft from moving. With a torque wrench tighten the crankshaft bolt to 30-34 ft-lbs of torque.

    b) The head of the crankshaft pulley bolt has six lines, each representing 60 degrees of rotation. Choose one of the lines then place a mark on the UR pulley at that line (red mark pictured). Then mark the line on the bolt (we used a red mark) 60 degrees counterclockwise away from the mark on the pulley. Now torque the pulley bolt until both red marks meet. We were not able to get the red marks to meet, so we got them as close to each other as possible.

    when torquing the crank bolt after install is the second step necessary or can you just torque the bolt to 30-34 lbs and call it a day?

  9. #9
    Apprentice Robzilla (robert)
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    *cough cough*

  10. #10
    Senior Member John
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    19 mm

    Go Tarheels! Go Panthers!

  11. #11
    Apprentice Jeff
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    I coulda sworn it was 20 as well, but i could be mistaken, did it almost a month ago. And no, you want a lot more than 30-34lbs of torque. I just used a breaker bar and tightened it as much as i could. IIRC it was stated that the OEM torque of the bolt is almost 150 lbs

    Just get a kit that includes between 17-22mm (as they seem to be of most use) and a breaker bar, 18" or so is what i used.
    Last edited by Hardstyle; 10-19-2011 at 11:52 AM.

  12. #12
    Senior Member Lucas
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    its a 21

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  13. #13
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    The crankshaft pulley bolt size for my Nissan Sentra 2005 1.8s is 27mm. pretty weird because when i was doing the head gasket job, all the nuts and bolts i had taken off when i was tearing down the engine were even numbers: 10mm, 12mm and 14mm...

  14. #14
    Newbie Christian
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    Quote Originally Posted by jaymov33 View Post
    The crankshaft pulley bolt size for my Nissan Sentra 2005 1.8s is 27mm. pretty weird because when i was doing the head gasket job, all the nuts and bolts i had taken off when i was tearing down the engine were even numbers: 10mm, 12mm and 14mm...
    The 1.8 and the 2.5 have different crank pulley bolt sizes.
    2004 Nissan Sentra SE-R Spec V

    w/ some goodies


    more goodies to come

  15. #15
    Senior Member Christian
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    thread bump. when your doing the install which way do you turn right or left?
    If it ain't a type R it ain't a tight car
    Ebay Intake, Srs Headers 4-1, Stock down pipe, 2.5 exhaust pipe, tsudo axle back, 2J Ps & Crank pulley, Bc racing 8k coilovers, Honda accord lip, HD Quick release front bumper, Qt adjustable link, BSR chain cut, IMM with cocking in between lol. Thats all for this year. Next year fully bulit motor top to bottom.

  16. #16
    Senior Member Bob
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    Lefty loosy

  17. #17
    Senior Member Christian
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    ok thanks got it off
    If it ain't a type R it ain't a tight car
    Ebay Intake, Srs Headers 4-1, Stock down pipe, 2.5 exhaust pipe, tsudo axle back, 2J Ps & Crank pulley, Bc racing 8k coilovers, Honda accord lip, HD Quick release front bumper, Qt adjustable link, BSR chain cut, IMM with cocking in between lol. Thats all for this year. Next year fully bulit motor top to bottom.

  18. #18
    Senior Member reggie
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    the crank pully bolt on my car was a 19 i just changed my pulley last week
    Reggie reg SO
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    turned up to the max

  19. #19
    Senior Member J
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    Quote Originally Posted by 936B15 View Post
    ok thanks got it off
    What socket size was it?

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  20. #20
    Senior Member adam
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    Default Re: Crank pulley bolt size?

    Quote Originally Posted by SoundEfx View Post
    What socket size was it?
    Should be 19mm.
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