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Help! Head Bolt Torque Specs for K20A2

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Old Jun 14, 2007 | 03:38 PM
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Default Help! Head Bolt Torque Specs for K20A2

I have recently did some upgrades to my engine. The factory 02-04 Acura RSX Type-S manual says to torque head bolts to 29ft.-lbs.!!! Is this right? I have built many B-Series and the head bolts are torqued between 60-65 ft. lbs. Does anyone know if this is right for the K20A2?

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Old Jun 14, 2007 | 06:01 PM
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Default Re: Help! Head Bolt Torque Specs for K20A2 (slo4door)

Anyone? Anything?
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Old Jun 15, 2007 | 07:56 PM
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Default Re: Help! Head Bolt Torque Specs for K20A2 (slo4door)

i would definately go by the helms manual. If that's what it says then that's what it says. I've looked in my Helms manual and yes it does say 29flbs of torque. just remember b series are very different from K series and if you really want to make sure, you could call up an acura dealership and ask the mechanics there.
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Old Jun 16, 2007 | 06:04 PM
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Default Re: Help! Head Bolt Torque Specs for K20A2 (risktypeS)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by risktypeS &raquo;</TD></TR><TR><TD CLASS="quote">i would definately go by the helms manual. If that's what it says then that's what it says. I've looked in my Helms manual and yes it does say 29flbs of torque. just remember b series are very different from K series and if you really want to make sure, you could call up an acura dealership and ask the mechanics there. </TD></TR></TABLE>

LOL, that is only the FIRST STEP in the torque sequence. You must then do two or three more steps depending on if you are using used or new bolts!

After the 29 ft-lbs sequence, you then turn all the bolts 90 degrees more in sequence once, and then 90 degress again a second time. If you are using new bolts, you do 90 degrees more for a third time!

29 ft-lbs in not NEARLY enough!

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Old Jun 16, 2007 | 06:17 PM
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Default Re: Help! Head Bolt Torque Specs for K20A2 (mikestypes)

he didn't ask the sequence he just asked if that was how many foot pounds it was suppose to be.
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Old Jun 16, 2007 | 07:28 PM
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Default Re: Help! Head Bolt Torque Specs for K20A2 (risktypeS)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by risktypeS &raquo;</TD></TR><TR><TD CLASS="quote">he didn't ask the sequence he just asked if that was how many foot pounds it was suppose to be. </TD></TR></TABLE>

Yes, but the final torque spec is not a number! What you were implying was that the head bolts should be torqued to 29 ft-lbs, which would be significantly low.
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Old Jun 16, 2007 | 07:40 PM
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Default Re: Help! Head Bolt Torque Specs for K20A2 (mikestypes)

No, what i was implying is that is what the helms manual was saying for torque specs. I didn't imply that was the only thing you had to do. If i was implying that i would say "Torque it to 29ft lbs and that's it". I said and i quote "If that's what it says then that's what it says. I've looked in my Helms manual and yes it does say 29flbs of torque" I'm pretty sure, and i am guessing, that this guy can read instructions because it has a 21 step instruction.
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Old Jun 23, 2007 | 07:14 AM
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Default Re: Help! Head Bolt Torque Specs for K20A2 (mikestypes)

So, you are saying that you are suppose to torque the head to 29ft-lbs. Then, go back through the same sequence with an extra 90 degree turn, then go back an add another 90 degree turn for used bolts, and another for new bolts. So the head has no certain torque specs aside from the 29ft-lbs? Only a couple of added 90 degree turn estimates? This seems a little weary to me, the B-Series are cut and dry. Please let me know, this may solve my problems.

Thanks.
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Old Jun 25, 2007 | 10:12 AM
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Default Re: Help! Head Bolt Torque Specs for K20A2 (slo4door)

That could very well be the sequence. I know that's how alot of european heads are torqued. Mercedes I-6 heads are torqued that way. You have to run through the sequence 3 times before it's finally to spec.
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