Head lifting issues solved Permenantly!!!

Advanced discussion of improving KA-T components
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KA24ETZTM
Knows Some Stuff About 240's!
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Re: Head lifting issues solved Permenantly!!!

Post by KA24ETZTM » Sat Apr 22, 2017 11:19 am

Also wanted to show some proof and ease some thoughts on the washer issue. To duncan351's defense his insert washer idea is incredible and I know that it works but after careful research Im certain the bigger issue here is the actual surface area of the washers. The load is just not spread evenly to secure the head with the 10mm washers or 11mm washers that come in standard ARP packaging.

This is a visual representation of the washers available. In the picture are three washers. Top: 10mm and 11mm ARP *They are both the same size I matched them up. Middle: factory Nissan washer Bottom: 12mm RB26 ARP washer. As you can see the 12mm washer is just slightly bigger than the factory washer. I can tell you that after installing they barely fit the bosses of my SOHC head. You can see this in my videos posted previously. Hope this helps some of you. The washer fix has helped 2J, VG, 4G63, and RB guys so it hopefully will take care of the KA24.
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marsworld
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Re: Head lifting issues solved Permenantly!!!

Post by marsworld » Tue Jun 13, 2017 9:23 am

KA24ETZTM wrote:I measured a factory head oil galley hole and the stud to get the difference and determine the diameter needed around the stud. Then I measured the 12mm stud and did the math of what drill bit I would need to maintain that same diameter around the stud as was there with the 10mm stud.
what part number used for the 12mm head studs or where did they come from?

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KA24ETZTM
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Re: Head lifting issues solved Permenantly!!!

Post by KA24ETZTM » Tue Jun 13, 2017 4:34 pm

They are ARP2000 RB26 Head Studs. Got them from Real Street.
Youtube Channel: https://www.youtube.com/user/ka24etztm/videos
My Original Build Thread
: viewtopic.php?f=5&t=35224
Current Build Status: viewtopic.php?f=40&t=61790
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adamky
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Re: Head lifting issues solved Permenantly!!!

Post by adamky » Wed Jun 14, 2017 12:17 am

Great additional info on the washer sizes. Makes me wish I would have gone with the RB studs
Wiseco/Eagle, JWT S1 cams, BC valve springs, PT5857, ID1700 injectors, SR20DET ECU w/ Nismotronic, etc, etc...
--> YouTube channel --> my build thread
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marsworld
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Re: Head lifting issues solved Permenantly!!!

Post by marsworld » Wed Jun 14, 2017 8:58 am

KA24ETZTM wrote:They are ARP2000 RB26 Head Studs. Got them from Real Street.
Thank You! im in the process of doing this to my dual cam. ive been having head lift issues for the past year. now its time to solve it. is yours complete with no oil issues.

marsworld
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Re: Head lifting issues solved Permenantly!!!

Post by marsworld » Sat Jul 01, 2017 6:00 pm

KA24ETZTM wrote:They are ARP2000 RB26 Head Studs. Got them from Real Street.
what did you do about the nuts for rb studs fitting in the hole between the lifters?

marsworld
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Re: Head lifting issues solved Permenantly!!!

Post by marsworld » Sat Jul 01, 2017 6:02 pm

ahh you did this on sohc i have dohc

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