almost_les
Zone Head
Posts: 590
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posted March 25, 2009 04:05 PM
ape cyl studs on a zx12r
whats the best method for getting these babies in? thanks in advance!
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KZScott

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posted March 25, 2009 07:56 PM
um... just screw them in?
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01 ZX-12R 8.84 @ 156.3 no bars, DOT tires. Pump Gas, NA.... turbo 8.47 @ 164.
00 ZX-12R 8.62 @ 165.2 no bars, slicks, Pump Gas, 55 shot.... turbo 8.32 @173
00 ZX-12R Fastest NA Kawasaki in the world 1: 222.046 1.5: 226.390 Loring AFB
00 ZX-12R street turbo 1: 227.9 1.5: 234.1 Loring AFB
00 ZX-12R LSR turbo 1: 263.1 1.5: 266.5 Loring AFB Worlds fastest ZX-12R
CMG Racing RCC Turbos
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aliveagain

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posted March 26, 2009 01:02 AM
and then back them out a quarter turn.
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I wondered why the baseball kept getting bigger. Then it hit me.
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entropy
Moderator
Posts: 8671
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posted March 26, 2009 01:37 AM
I double nut em and tq to 6/8ft-lb, some folks use lock tite also
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aliveagain

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posted March 26, 2009 08:40 AM
Well,3 different answers.Let's see what info this one stirs up.
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I wondered why the baseball kept getting bigger. Then it hit me.
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KZScott

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posted March 26, 2009 11:36 AM
i was under the impression you were just supposed to thread them in till they stopped(hand tight, which wouldnt be very much, probly close to Karls torque spec?)
if you back them out some, you arent using evey possible thread, even if it is just a tiny bit. using lock tite would keep them from spinning out when you take the head off next time which would be a good thing.
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01 ZX-12R 8.84 @ 156.3 no bars, DOT tires. Pump Gas, NA.... turbo 8.47 @ 164.
00 ZX-12R 8.62 @ 165.2 no bars, slicks, Pump Gas, 55 shot.... turbo 8.32 @173
00 ZX-12R Fastest NA Kawasaki in the world 1: 222.046 1.5: 226.390 Loring AFB
00 ZX-12R street turbo 1: 227.9 1.5: 234.1 Loring AFB
00 ZX-12R LSR turbo 1: 263.1 1.5: 266.5 Loring AFB Worlds fastest ZX-12R
CMG Racing RCC Turbos
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VincentHill

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posted March 26, 2009 11:53 AM
Here is another! I use Green Loctite and double nut them and screw them in TIGHT! I have never looked at the torque wrench but my guess would be 8 to 10 PSI There is a feel I have and when using a Short Ratchet you are only so strong. My fear is not to have them tight and locked then from the heat of the engine they losen up (Not turn out just able to be turned my hand) and they unscrew when you try to take the nut off and then you have defeated the Purpose of using Studs! Saving the Threads in the case and more torque
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Made History @ Daytona and still one fast old man!!
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aliveagain

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posted March 26, 2009 12:01 PM
I was told to back them out a little because the heat expansion is different between the steel and aluminum.If they were all the way in then it would have no place to expand but up and stress the block threads.
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I wondered why the baseball kept getting bigger. Then it hit me.
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VincentHill

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posted March 27, 2009 07:31 AM
quote: I was told to back them out a little because the heat expansion is different between the steel and aluminum.If they were all the way in then it would have no place to expand but up and stress the block threads.
With that thinking, should it not be the same with the Head Bolts? They are Steel and the Block is Still Aluminum!
Remember the Hole gets BIGGER with heat and you want it tight to stay tight!
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aliveagain

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posted March 27, 2009 08:24 AM
The stock bolts don't bottom out either.
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I wondered why the baseball kept getting bigger. Then it hit me.
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woppi

Pro
Posts: 1362
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posted March 27, 2009 10:27 AM
quote: Here is another! I use Green Loctite and double nut them and screw them in TIGHT! I have never looked at the torque wrench but my guess would be 8 to 10 PSI There is a feel I have and when using a Short Ratchet you are only so strong. My fear is not to have them tight and locked then from the heat of the engine they losen up (Not turn out just able to be turned my hand) and they unscrew when you try to take the nut off and then you have defeated the Purpose of using Studs! Saving the Threads in the case and more torque
Yes !
i did the same work ! as Vincent !
woppi
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2000 Limited ZX12R NOS
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VincentHill

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posted March 27, 2009 01:44 PM
quote: The stock bolts don't bottom out either.
Is that a Question? or a statement vs the Studs? I do not think my studs bottomed out! of course I have ALL Studs (the rest of them made by Raceware)
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Made History @ Daytona and still one fast old man!!
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almost_les
Zone Head
Posts: 590
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posted March 28, 2009 12:53 PM
thanks for all the feedback!
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aliveagain

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posted March 30, 2009 08:12 AM
Either way,just make sure the hole is clean of any liquids or grease.
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I wondered why the baseball kept getting bigger. Then it hit me.
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