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RS master cylinder and booster did NOT fit in my EH2...

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Old Oct 30, 2002 | 04:16 PM
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Default RS master cylinder and booster did NOT fit in my EH2...

After the huge pain it was to rip the old one out and get the larger RS MC and booster in my hatch, I found out that it did NOT connect properly to the civic brake lines.

The bung furthest from the firewall accepted the civic line no problem. The other, however, was too large to allow the civic line to screw into it.

I was under the impression this was a simple 100% compatable swap, but I guess I either got the wrong part, or the wrong information.

Thanks for any help,

-Nick-
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Old Oct 30, 2002 | 06:07 PM
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Default Re: RS master cylinder and booster did NOT fit in my EH2... (B19CivicHB)

it should've fit and you need to modify the brake lines.
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Old Oct 31, 2002 | 11:46 AM
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Default Re: RS master cylinder and booster did NOT fit in my EH2... (B19CivicHB)

Do i just use an integra brake line for that second line that didnt fit? Thanks,

-Nick-
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Old Oct 31, 2002 | 09:39 PM
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Default Re: RS master cylinder and booster did NOT fit in my EH2... (B19CivicHB)

Do i just use an integra brake line for that second line that didnt fit? Thanks,
One of the lines need to be slightly modded, but if it's a wrong part as you've IM-ed. Please let me know asap.

-Sean
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Old Oct 31, 2002 | 10:05 PM
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Default Re: RS master cylinder and booster did NOT fit in my EH2... (Cosworth)

for Sean for the help he's giving me with this situation.

-Nick-
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Old Nov 1, 2002 | 02:33 AM
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Default Re: RS master cylinder and booster did NOT fit in my EH2... (Cosworth)

One of the lines need to be slightly modded
Go to SEARS and get yourself a "Tube Bender" (Plumbing Kit) make sure it is a 1/4" size, to modify some lines if needed. Do not try to bend by hand or with other object as a replacement ..... or will cost you some work.
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Old Nov 1, 2002 | 04:18 AM
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Default Re: RS master cylinder and booster did NOT fit in my EH2... (B19CivicHB)

Yep. That is true for all the older teg master cylinders and the ones from the 4 door civic EX & LX. Heres what you can do to fix it. Find the correct size fitting at a junk yard, cut it off. carefully cut the flare off the end of your brake line, slip the new fitting on and re flare it. You can get a tubing flare kit at any hardware store for like $10.

Brake lines are a bitch but the upgrade is worth it.
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Old Nov 1, 2002 | 05:41 AM
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Default Re: RS master cylinder and booster did NOT fit in my EH2... (92sleepR)

do reflared brake lines seal well though?
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Old Nov 1, 2002 | 06:46 AM
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Default Re: RS master cylinder and booster did NOT fit in my EH2... (B19CivicHB)

Nick - I trust Brian with his products and I have no doubt in my mind that what you have is RS M/C and booster. One of the line needs some elbow grease to fit as stated above. I'm contacting Tom right now, I remember it not being straight bolt in. Also, please check the stamping on the unit. Thanks.

-Sean
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Old Nov 1, 2002 | 07:22 AM
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Default Re: RS master cylinder and booster did NOT fit in my EH2... (Cosworth)

I talked to Tom just now. (Thanks, Tom for a quick answer.) If indeed you can not fit the line near the firewall you can either:

1. reflare the lines (as mentioned in above posts). It works without sealing problem (Tom verified this as a tech at his shop has done this before).

2. send the M/C to me and I can reflare it for you (at Tom's shop) and send it back

3. send the whole thing (M/C & booster) and I can give you your money back for what you bought it for.

FYI - Just so you know, <u>new</u> RS M/C = ~$160 + $booster. And, I do not have any RS M/C & booster... and you'll have to go through Brian (if he's willing to help out).

Let me know.

Sincerely,
Sean
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Old Nov 1, 2002 | 08:05 AM
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Default Re: RS master cylinder and booster did NOT fit in my EH2... (Cosworth)

Just to clarify things for reference, should the RS MC bolt-in directly? Or does it depend on the year? I'd just like to konw cause I plan on doing this as well when I install my rear discs and I want to know what part is gonna fit perfectly. Thanks
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Old Nov 1, 2002 | 09:27 AM
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Default Re: RS master cylinder and booster did NOT fit in my EH2... (B19CivicHB)

do reflared brake lines seal well though?
I haven't had any problems yet but you do need to be carefull flaring them. The steel lines are not as maleable as copper or aluminum and they like to split rather than flare. If I had to do it again I would heat the end with a torch to aneal (soften) the metal before flaring it.

Mike
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Old Nov 1, 2002 | 09:37 AM
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Default Re: RS master cylinder and booster did NOT fit in my EH2... (CXHatchback)

.... Good question though. I thought same year w/same year was swapable no matter what model on any GSR/LS/GS/RS.

BTW, Nick I've got a M/C Nick in my garage from a '94 GSR if you need one really BAD.

LTR
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Old Nov 1, 2002 | 10:12 AM
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Default Re: RS master cylinder and booster did NOT fit in my EH2... (Honda4CX-R)

BTW, Nick I've got a M/C Nick in my garage from a '94 GSR if you need one really BAD.

LTR
GSR M/C will have the same issue w/ flaring due to ABS line. RS in theory should bolt up directly.
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Old Nov 1, 2002 | 03:12 PM
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Default Re: RS master cylinder and booster did NOT fit in my EH2... (Cosworth)

ABS line
I missed that piece of info somewhere ..... ... My bad
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Old Nov 1, 2002 | 03:36 PM
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Default Re: RS master cylinder and booster did NOT fit in my EH2... (Honda4CX-R)

Here are the pics of the MC i received. Notice the bung closest to the booster is slightly larger than the other.





Also, no 15/16ths mark anywhere, only a "1"

-Nick-
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Old Nov 1, 2002 | 06:08 PM
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Default Re: RS master cylinder and booster did NOT fit in my EH2... (B19CivicHB)

Here are my '94 GSR w/ABS M/C pics, why are they so different ???










.... Damn them !!!!



[Modified by Honda4CX-R, 11:21 PM 11/1/2002]
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