Valve cover Bolts?

Posted by AWD-Wrecker, Aug 20, 2009
Newbie Forum - Beginner DSM modification questions and discussions. Common, repetitive, and general discussions will get dumped here from other tech forums. Unless you're a Probationary member you shouldn't post threads here.

  1. AWD-Wrecker

    AWD-Wrecker Probationary Member

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    Stony Plain, AB_Canada
    So i cannot for the life of me find valve cover bolts.
    does anyone know the dimensions of the 25mm bolts (outside 8)
    part number MD129023.

    im trying to call edmonton nut and bolt to get some.
    #1
  2. BoostedTalonTS

    BoostedTalonTS Proven Member

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    Why bother hunting down a few missing bolts when you can convert over to studs?

    IMO, the studs offer a better solution as:

    1) they are less likely to strip your head

    2) more clamping force


    I ended using a Moroso oil pan stud kit I found on eBay for under $40 shipped...

    eBay Seller: machine4speed: 280345026758, Parts Accessories items on eBay Motors
    #2
  3. snowborder714

    snowborder714 Moderator

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    6x1.0x25

    If that is the same Moroso kit that Summit sells, I used to use that, until it started rusting. I have since switched over to an allen head bolt kit from Bonehead.

    I would think that more clamping force is not necessarily needed as long as everything is installed properly and tightened/torqued down evenly.
    #3
  4. AWD-Wrecker

    AWD-Wrecker Probationary Member

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    Stony Plain, AB_Canada
    well eBay would take longer then the dealership, i need these bolts today and edmonton nut and bolt delivers.

    the length is 25 mm,
    anyone know the diameter,
    and the thread size?
    what about that space before the thread?
    #4
  5. knochgoon24

    knochgoon24 DSM Wiseman

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    M6x1.0

    You can just get full threaded ones.

    I bought SS ones from Lowes out of the hardware section.
    #5
  6. miller97tsi

    miller97tsi Proven Member

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    hey man if you are looking for replacements, i went to auto zone and got brand new bolts that fit perfect for less than 10 bucks. stainless steel perfect thread and they are still working great. i had the same problem. not sure the size though.
    #6
  7. malibu80

    malibu80 Proven Member

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    When it comes to bolt size and pitch for mitsubishi, they use mostly fine thread, metric bolts. Usually bolts are labeled width in mm by spacing between threads, then length or such. When you find the right bolt please post it as it will be helpful. From memory, and I could be wrong, I am pretty sure the bolt is a 10mm head which means it is 6mm diameter. Most likely fine thread. I would venture to say 20 mm to 25 mm length. I could bet cheap bolts are like 10 cents a piece and stainless steel (SS) are maybe 40 cents a piece. I think you need what..6 bolts? That should get anyone started.
    #7
  8. dsmcurse

    dsmcurse Proven Member

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    dude there just valve cover bolts. as lond as there all there. you have a few missing ones, well take one out and take it with you as a referance go to the hardware store and they will match you up a bolt. get all of 'em for your valve cover so you have a complet set. there not super important. well i mean they are of course but not as critical as you make it sound. " go to the dealer and get OEM valve cover bolts " sounds expensive. as far as switching to studs. pointless. added clamping force. DUDE there just valve cover bolts! they barley tighten down man, look in the chilton book at the tourqe value. its like 10-12lps. not tight at all. any tighter and you would squish out the gasket and you valve cover would leak oil. just a little bit of tighness evenly across the cover is all that is needed. look at shep racing car, kaizen speed car, what ever. the fastest dsm's in the world dont use speacial valvecover bolts, (or studs for that matter). dont over think this, and dont over pay at the dealership. there just valve cover bolts!
    #8
  9. malibu80

    malibu80 Proven Member

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    precisely, but a lesson in bolt sizes couldn't hurt. In all reality, do not overtighten this piece. the gasket here is pretty forgiving.
    #9
  10. knochgoon24

    knochgoon24 DSM Wiseman

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    Really? Let me explain

    M6x1.0x25

    M6 = 6mm bolt
    x1.0 = metric 1mm spacing between threads
    x25 = 25mm. I've found that 20mm are just a hair short for some holes.

    Walk into the hardware store and ask them to point you to the M6x1.0x25 bolts. Stainless will work best since they won't rust.

    Then torque to the proper torque spec. 17in lb. IIRC.
    #10
  11. Defiant

    Defiant DSM Wiseman

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    glorious Galt, California
    Good god, do not try to "torque" valve cover bolts. Just use a nutdriver on them, down to snug.
    #11

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