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Sil80 Needs <3

Head Bolts Are Great.......... NOT

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15 Comments
by
ProjectDohc
, 29th July 2012 at 09:29 PM (459 Views)
Anyone who has seen a picture like the one below will understand how my afternoon has been.

We took our time, prepared well and ensured everything was clean.

Following the instructions for this motor to the absolute letter and yet life decides to give us this!!!!



I think we just got a bad bolt to be honest, Looking at the end that is at the top you can see almost like a small hole in the metal which wasn't replicated on the piece which got stuck in the block (quite a way down just to make my life a challenge), It wasn't over torqued wrench is brand new and tested lately.

After snapping multiple drill bits and a second set of easy outs we have success.

Almost a full days work our only progress is about $70 worth of bolts down the toilet, $30 worth of easy outs I didn't want, 2 X drill pieces and a second set of easyouts which are toast BUT we have managed to fit the oil cooler adapter plate and lines w00t!

Here's hoping the rest of the week goes far more smoothly
Categories
Builds , Non-Honda

Comments

  1. Mr Mugen's Avatar
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    what brand of head bolts were they??
  2. ProjectDohc's Avatar
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    Permaseal, first five torqued up fine this one not so much.

    Used lube, clean hole etc.

    Have since rechecked the thread on the block and its all fine.

    Used a brand new Torque wrench and we were only torquing to the recommended factory specs.
  3. R8edM's Avatar
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    That sucks Ben, I can imagine you shat yourself once you felt it snapped.
    Stoked you got it out though.
  4. ProjectDohc's Avatar
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    Haha Keith was actually on the wrench at the time, We were double checking everything but the look on his face when it snapped was rather priceless. He was more concerned than I was, It certainly wasn't his fault he just happened to be on the receiving end.

    As much as it sucks its really only time wasted, Should have a new set of replacement bolts by Tuesday (with any luck free but I doubt it).
  5. tysonzane's Avatar
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    Shit! I've reused OEM ones multiple times. I wont any more but it can be done.

    What torque setting does Permaseal reccomend? That might be where you went wrong.
  6. ProjectDohc's Avatar
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    just as a note permaseal came to the party and sent us a full set of new bolts free of charge. great customer service!!
  7. ProjectDohc's Avatar
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    when we got the new bolts we measured them against the old oem ones and they were stretched quite a lot in comparison. Unsure what they were off the top of my head, the married up with what is recommended by factory pretty much
  8. stav's Avatar
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    That sucks dude, good to hear you got the snapped piece out though !!!
  9. tysonzane's Avatar
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    So what was Permaseals reccomended torque setting and reccomended lubrication? Doesn't sound like OEM.
  10. da8teggy's Avatar
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    that suks man
  11. [VTECIN]'s Avatar
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    Hey all, im Keith, I've been helping Ben with his car. The torque settings we are using are the same as factory nissan. The head bolts need replacing if the head gasket blows as they are torque to yeld bolts. That pretty much means they stretch. The ones that we origanlly pulled out are stretched by roughly 5mm, so once in place they won't hold the head down.

    The bolt snapped because it was faulty, it had a air bubble inside the casting, which is just bad luck, but luck is now on our side as we managed to get the broken thread out. We have checked the thread in the head several times now and all is ok. Hopefully we have time and the head will be bolted down for the last time by the end of this coming weekend.

    Cheers all!!
  12. ProjectDohc's Avatar
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    cheers for the summation that explains in the ins and outs. let's hope we have more luck this time!
  13. trend.whore's Avatar
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    Interesting.. everywhere I read said CA18DET bolts did not need to be replaced, guess you learn something every day! Would explain why our head gasket replacements never worked out haha!
  14. ProjectDohc's Avatar
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    yeah certainly wouldn't help you much Alex. as Keith said they were much much longer having been stretched
  15. trend.whore's Avatar
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    Weird, I was sure I measured them and all. No worries, get that sorted and you should have a sweet car
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