How-To (JDM) 1" ITR MC/BB into Civic install - Honda-Tech - Honda Forum Discussion


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How-To (JDM) 1" ITR MC/BB into Civic install

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Old 03-31-2004, 05:38 PM   #1
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Default How-To (JDM) 1" ITR MC/BB into Civic install

Tools needed:
10mm Flare-nut wrench
12mm deep socket
10mm socket
Socket extension
10mm open wrench
12mm open/box wrench
Needle Nose pliers
Small-Medium Vice-Grip pliers (I find using them to be easier than standard)
Siphon hose/old turkey baster/vacuum pump
Clean bottle (we do not want to contaminate brake fluid)
Hacksaw/cut-off tools/file - (only if you don't want to deal with the intake manifold tab)
(The following are only needed if you purchased a JDM ITR mc/bb)
Vice if you have one
Pipe bender/bending spring


See the difference in the boosters??


MC Differences


JDM ITR mc (notice the side-mounted hard line is on the opposite side of USDM mc)

USDM Civic mc


Specialty tools

Step 1: Siphon/suck as much fluid from the civic mc as possible.

Step 2: Remove the master cylinders from the boosters (both the ITR and the civic set). Of course this means that you will be disconnecting the hard brake lines from the mc too. While you’re at it, remove the hard line that connects to the side of the mc from the proportional valve as well…some bending will need to take place here (especially if you have a JDM ITR mc, where the side hole is on the opposite side - rhd in Japan)
W/o removing them you cannot get the civic one out of the bay and you certainly couldn't get the ITR one in.

Step 3: Crawl under the dash and remove the cotter pin from the clevis pin behind the brake pedal.
Remove Clevis pin and put it somewhere safe…and somewhere where you won’t forget where it is...

Step 4: While stuck uncomfortably under the dash remove the 4 nuts that hold the civic booster to the firewall.
The 2 on the left are easy to get off, where the top right requires a lot of patience because it’s really hard to get to, and the bottom left nut requires the extension and the deep socket combo in order to reach easily.

Step 5: Crawl out from under the dash and return to the engine bay.
Remove the vacuum hose from the booster (pliers - vice/standard).
Unbolt the hose stays above the booster.
Unbolt the throttle/cruise cable stay
Slide the wires off the stay and unbolt it from the shock tower.
(Tie all things as far away from your work space as possible…anything left behind will only serve to **** you off later when fighting to get the booster in)

Step 6: Pull civic booster from the firewall and fight with it until it is completely removed from the bay. This IS NOT easy w/ an engine still there. Good luck…

Step 7: Time for a break…

Step 8: Get ready for a fight. It’s time to put the ITR booster into its new home. Because you tied off all the wires and cables it shouldn’t be THAT bad. Oh wait…yes it can. The y8 intake manifold (maybe others as well…I’m not positive) has a great little tab that sticks out and serves no purpose.
Now, here is where you can, this is totally optional, cut the intake manifold’s tab off. I removed about 7/8 of the tab to help clear the booster.

If I hadn’t, I am sure I would’ve fought with it MUCH longer. There is nothing to the tab, so cutting it will not have any ill results (if you cut too far…you can always JB weld it up).

Step 9: Continue fighting w/ the booster until you get it to where it belongs. This can take some time depending on your luck…it took me over an hour of straight fighting.
(I disconnected the brake lines from the prop valve to get a little more clearance).
When it does finally go where it’s supposed to, be sure that the clevis pin is aligned correctly so it can connect to the brake pedal. There is no room to fix it once it is fully installed…

Step 10: Once the ITR booster is in place, crawl back under the dash and replace the 4 nuts, clevis and cotter pins.

Step 11: If you bought a JDM ITR mc/bb

its time to take a look at the hard line you removed. See how it’s bent the opposite way of what you need? Take your pipe bender and start to work out the bends, LEAVING THE ONE CLOSEST TO THE MC (90*). This part of the line doesn’t need to be re-bent…we’re just going to flip the rest of the line instead…this also means that our 90* bend is going to turn into a 180* bend (or as close to it as possible). Once is somewhat straight (minus the one 1 bend) stick it in the vice and CAREFULLY tighten it to remove all the little bends in the line that you couldn’t do by hand. This is important to do because all those little bends add up to distance and we need as much as we can get out of this line. Be sure to do all your bends slowly so the line doesn’t kink on you and clamp shut.


Step 12: Now, the 180* bend needs to be as sharp a turn as possible so the line reaches both the mc and the prop valve. Try to put a small bend directly after the flare nut as well to better clear the shock tower. A bending spring works great…but careful people can do it w/ their hands (I did).

Step 13: Once your line is somewhat decent

take it over to the prop valve and install the one end. This really makes it easier to install than trying to do it after everything else is installed and it’s hard to get back there.

Step 14: Install the 2 hard lines to mc and then bolt the mc to the booster. If you have the JDM ITR piece you'll see why the little bend after the flare nut is there. Installing the lines before connecting the mc and bb helps to bend the line a little more before installing it, and thus a better fit (its all custom, so trial and error).

Step 15: Play around w/ the mc and connected lines until you’re able to get the mc onto its bolts on the booster. It may sound dumb to try to fit the mc on AFTER the lines are connected, but its much easier doing it that way than to fight w/ the line after the mc is installed and you have zero room to work with and install the side line.


Step 16: Tighten everything down, replace all the cables, stays, and hoses to their original places, pour in your brake fluid, bleed the brakes, and drive away w/ your new larger mc and booster. Remember to test it out in a neighborhood or back-street first to make sure you installed everything right and you have no air in the brake lines. If you did it all right you will definitely notice a nice difference in pedal-travel distance.



*****
One thing that I have left out, until now:
Some of the ABS units require a larger line fitting, into the MC. If that happens, you will need to cut the very tip of the flare off the hard line, buy new, larger, abs fittings for an integra, and re-double flare the civic line w/ the abs ends in place.
Its very simple.


Modified by pdiggitydogg at 3:23 PM 2/23/2006


Modified by pdiggitydogg at 3:24 PM 2/23/2006
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Old 03-31-2004, 05:40 PM   #2
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Default Re: How-To (JDM) 1" ITR MC/BB into Civic install (pdiggitydogg)

Damn, cool writeup, but register for WTDR or send me the pics and I'll host them there...I can't see the pics (says I can't access them).
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Old 03-31-2004, 05:47 PM   #3
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alright
(uploading in progress)
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Old 03-31-2004, 06:05 PM   #4
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Default Re: (pdiggitydogg)

Dang, not nearly as difficult as I figured it would be.
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Old 03-31-2004, 06:08 PM   #5
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Default Re: (pdiggitydogg)

Quote:
Originally Posted by pdiggitydogg
alright
(uploading in progress)
Soon I hope, my ctr mc and booster went
in supper easy. Had to bend the front line
a bit, but just used my hands.

--------------edit-----------------
......I think ive got it!..............
(why ricey couldnt use his mc/bb setup)
You both have 6th gen civics dont you? On 5th
gens the front line loops around to the same side
as the jdm mc's. At least thats how mine was, it
made it very easy.
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Old 03-31-2004, 06:13 PM   #6
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Default Re: (elwood)

Wow, I think you just saved me some money man! I have a JDM 15/16th mc and Im putting it in instead of trying to get somethign else. On a scale of 1-10 how necessary is the line bender? I think I could straighten it out with my hands pretty easy....
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Old 03-31-2004, 06:16 PM   #7
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Id say the bender wasnt even really needed...
most of the work is small anyways and the bending wheel is too large.
Something like a pipe or even a ball would work fine to get the basic shape
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Old 04-01-2004, 06:39 AM   #8
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bump
{Dont want ot to get lost so quickly}
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Old 04-01-2004, 07:16 AM   #9
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Default Re: (pdiggitydogg)

I remember hearing that the hard lines had to be reflared in order to fit, is there any truth to that, or do they just screw right in?
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Old 04-01-2004, 07:33 AM   #10
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fit fine for me
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Old 04-01-2004, 01:29 PM   #11
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Default Re: (toolowsol)

Quote:
Originally Posted by toolowsol
I remember hearing that the hard lines had to be reflared in order to fit, is there any truth to that, or do they just screw right in?
They only have to be re-flared if you go from:
asb<--->non abs
non abs<--->abs
If you switch from what your car came with, you have to re-flare
the lines and get the nut thing.
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Old 04-01-2004, 02:37 PM   #12
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Default Re: (elwood)

Thank you for the info! Does anyone know how to do this, maybe a quick howto, ABS MC's are easier to find, and my car doesn't have abs.
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Old 04-01-2004, 03:08 PM   #13
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Default Re: (toolowsol)

ok i don't know much about JDM ITRs, but did they come with ABS? would i have to rebend and reflair my brake lines for that to work?
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Old 04-01-2004, 03:10 PM   #14
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I know that my lines fit nicely, no reflaring needed at all (I do not have abs).

There is a good flaring how-to here:
http://www.joesfalcon.com/gentip2/gentip2.html
Brake lines are double flared, by the way
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Old 12-29-2007, 11:13 PM   #15
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Default Re: (pdiggitydogg)

Quote:
Originally Posted by pdiggitydogg
I know that my lines fit nicely, no reflaring needed at all (I do not have abs).

There is a good flaring how-to here:
http://www.joesfalcon.com/gentip2/gentip2.html
Brake lines are double flared, by the way
the link is dead any other flaring how to's out there?
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Old 12-30-2007, 04:53 AM   #16
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https://honda-tech.com/zero...age=1

I found this one

Having a EG2 with ABS, I had to flare 1 brake line (the one at the side)



Used a flaring tool like picture below






Modified by EG2-Kermit at 3:04 PM 12/30/2007
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Old 12-30-2007, 06:55 AM   #17
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Default Re: (EG2-Kermit)

If you buy a '94 to '97 master cylinder from an Integra, then you'll need to reflare the line to reduce it from a M10 to a M8 thread diameter.

If you use a '98+ Integra (non-R or R) master cylinder, you won't need to cut and reflare any of the lines, just move them around and rebend them, which can be done by hand.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote">Step 9: Continue fighting w/ the booster until you get it to where it belongs. This can take some time depending on your luck…it took me over an hour of straight fighting.
(I disconnected the brake lines from the prop valve to get a little more clearance).
</TD></TR></TABLE>
I installed the master cylinder and booster together as a single unit with the motor out, but I still had to remove the booster's vacuum line bracket to get the booster to clear the shock tower.

What's nice about the JDM ITR master cylinder (RHD) is that the side port is on the opposite side so that you don't have to bend that line clear to the opposite side. It probably bolts in really easily I bet.


Modified by IN VTEC at 10:27 AM 12/30/2007
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Old 01-05-2008, 02:30 AM   #18
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Default Re: (IN VTEC)

Would a EG6 need to reflare the brake lines if it used the BB/MC from a 94-97 ITR? how about a 98-01 ITR? i want to avoid reflaring the brakelines
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Old 01-05-2008, 03:59 AM   #19
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Why are you guys rebending that line? You can purchase pre-flared brake lines from napa in any length and then bend them youselves. Also, they stock a huge selection of brake line adaptors so you dont have to re-flare for a diffrent thread pitch/size
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Old 01-05-2008, 12:51 PM   #20
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Default Re: (wlee112)

Yes for '94 to '97 and no for '98 to '01.

Because it's cheaper, and I didn't know they had adapters otherwise it would have saved me a lot of hassle.
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Old 01-21-2008, 06:31 PM   #21
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Quote:
Originally Posted by IN VTEC
Yes for '94 to '97 and no for '98 to '01.

Because it's cheaper, and I didn't know they had adapters otherwise it would have saved me a lot of hassle.
hmmm thats interesting becuase N1 Concept in my area is selling some jdm itr bb/mc's and they told me that the 98+ are what i need. anyways ill ask them again when i go buy it.

QUICK QUESTION: any recommendations on which rubber brake lines to the wheels? i know you need to change those after you swap to an ITR but i've heard many bad things about steel braided lines. what about stock ITR brakelines from the dealership?
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Old 04-27-2012, 06:50 AM   #22
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Default Re: How-To (JDM) 1" ITR MC/BB into Civic install

Yeah yeah it's an old thread. Here's the updated link to the flaring instructions, in case anyone finds this and needs it: http://www.joesfalcon.com/page22.html The other link from the h-t page has no working images
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