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volkoman
Samba Member
Joined: August 16, 2005
Posts: 50
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 Posted: Thu Jun 05, 2014 7:58 am Post subject: Master cylinder dual circuit |
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I want to install a dual circuit MC where do my metal lines go into my new dual circuit MC. I have one metal going underneath the OG MC rear and then the one left and one right of MC for the front.
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volkoman
Samba Member
Joined: August 16, 2005
Posts: 50
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| Posted: Thu Jun 05, 2014 8:02 am Post subject: |
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On the dual. One of the three holes is bigger.
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KTPhil 
Samba Member
Joined: April 06, 2006
Posts: 34009
Location: Conejo Valley, CA
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| Posted: Thu Jun 05, 2014 8:09 am Post subject: |
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Left side, large orifices: for brake light switches.
Right side, small orifices: for brake lines.
To make up the new hard line(s) you now need, straighten out two coat hangers, and bend them both to the shape that fits your ports and mounts; smooth bends and enough straight length at the ends to ensure they will thread into their ports properly. Then straighten out one of them and take it to the store. Have them select or make up a VW-style double flare line to the length of your straight coat hanger. Then carefully bend the new line to the shape of the other coat hanger. It will now pop right in and fit like a glove. |
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volkoman
Samba Member
Joined: August 16, 2005
Posts: 50
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| Posted: Thu Jun 05, 2014 8:54 am Post subject: |
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Thanks. So on my master I have large orifice on right back and one on front facing forward like my OG one. Orifices on right side are both small
Would two on right side be front?
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KTPhil
Samba Member
Joined: April 06, 2006
Posts: 34009
Location: Conejo Valley, CA
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| Posted: Thu Jun 05, 2014 9:51 am Post subject: |
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Can you post a pic of your left side?
That layout is weird unless I'm confused.
To add/remove confusion, here's a pic of my original early '71 master:
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Bobnotch
Samba Member
Joined: July 06, 2003
Posts: 22422
Location: Kimball, Mi
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| Posted: Thu Jun 05, 2014 10:18 am Post subject: |
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Going off his pics from the above posts, I'd say his front circuit brake light switch location is on the end of the master cylinder. In this case, the left side rear is the rear switch location. The port on the right rear, is for the rear brake line, while both sides up front are for the right and left brake lines. I believe Jim Adney say this a made in Japan "style" master cylinder. I had one of these on my 71 Notch when I got it.
_________________
Bob 65 Notch S with Sunroof
71 Notch ...aka Krunchy; build pics here;
http://www.thesamba.com/vw/forum/viewtopic.php?t=249390 -been busy working
64 T-34 Ghia...aka Wolfie, under construction... http://www.thesamba.com/vw/forum/viewtopic.php?t=412120
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| Tram wrote: |
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volkoman
Samba Member
Joined: August 16, 2005
Posts: 50
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| Posted: Thu Jun 05, 2014 10:25 am Post subject: |
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| The last picture is of the left side. The front is facing forward is switch ( large orifice) bought this MC here on samba last week |
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volkoman
Samba Member
Joined: August 16, 2005
Posts: 50
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| Posted: Thu Jun 05, 2014 10:27 am Post subject: |
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| It's going on a 63 notch. |
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KTPhil
Samba Member
Joined: April 06, 2006
Posts: 34009
Location: Conejo Valley, CA
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| Posted: Thu Jun 05, 2014 10:34 am Post subject: |
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| volkoman wrote: |
| The last picture is of the left side. |
Okay, right side pic, please. |
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KTPhil
Samba Member
Joined: April 06, 2006
Posts: 34009
Location: Conejo Valley, CA
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| Posted: Thu Jun 05, 2014 10:37 am Post subject: |
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| Bobnotch wrote: |
| Going off his pics from the above posts, I'd say his front circuit brake light switch location is on the end of the master cylinder. In this case, the left side rear is the rear switch location. The port on the right rear, is for the rear brake line, while both sides up front are for the right and left brake lines. I believe Jim Adney say this a made in Japan "style" master cylinder. I had one of these on my 71 Notch when I got it. |
I thought that at first, but that might conflict with the idea of the small ports being on the brake lines to enable bleeding, while keeping the large orifices for the switches. So I figured something else was at work and want pics of both sides to see all ports. But your answer is my current guess, sight unseen. |
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volkoman
Samba Member
Joined: August 16, 2005
Posts: 50
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| Posted: Thu Jun 05, 2014 11:31 am Post subject: |
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| My third picture is right side the fourth pic after your post with pics is my left side. Left side has same size. Right side has large in back and small in front. Brake light switch in front of cylinder facing forward |
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KTPhil
Samba Member
Joined: April 06, 2006
Posts: 34009
Location: Conejo Valley, CA
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| Posted: Thu Jun 05, 2014 11:46 am Post subject: |
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| volkoman wrote: |
| My third picture is right side the fourth pic after your post with pics is my left side. Left side has same size. Right side has large in back and small in front. Brake light switch in front of cylinder facing forward |
Okay, got it.
I agree 100% with Bob's diagnosis. |
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volkoman
Samba Member
Joined: August 16, 2005
Posts: 50
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| Posted: Thu Jun 05, 2014 12:39 pm Post subject: |
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| Guess I have to replace the line going to rear? Is this difficult? |
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KTPhil
Samba Member
Joined: April 06, 2006
Posts: 34009
Location: Conejo Valley, CA
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| Posted: Thu Jun 05, 2014 1:48 pm Post subject: |
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| volkoman wrote: |
| Guess I have to replace the line going to rear? Is this difficult? |
It's a real PITA. I'm not sure just what your line geometry is/needs to be, but you might consider a female-female adapter block and a short line to the master as an alternative. |
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volkoman
Samba Member
Joined: August 16, 2005
Posts: 50
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| Posted: Thu Jun 05, 2014 6:05 pm Post subject: |
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| Was hoping you would say there was another way. Thank you. I think I will look for the adaptor and try it that way. |
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Bobnotch
Samba Member
Joined: July 06, 2003
Posts: 22422
Location: Kimball, Mi
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| Posted: Thu Jun 05, 2014 7:07 pm Post subject: |
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| volkoman wrote: |
| Guess I have to replace the line going to rear? Is this difficult? |
It can be. I've gotten into a habit of doing it as a 2 piece line with a metric coupler in the middle. This allows you to feed 1 line to the rear "T" block, and another to the master cylinder and then just couple the 2 together. Any excess line can be put in the area under the rear seat.
I think you need something like 90 inches of tubing total.
_________________
Bob 65 Notch S with Sunroof
71 Notch ...aka Krunchy; build pics here;
http://www.thesamba.com/vw/forum/viewtopic.php?t=249390 -been busy working
64 T-34 Ghia...aka Wolfie, under construction... http://www.thesamba.com/vw/forum/viewtopic.php?t=412120
| Tram wrote: |
| "Friends are God's way of apologizing for relatives." |
| Tram wrote: |
| People keep confusing "restored" and "restroyed". |
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KTPhil
Samba Member
Joined: April 06, 2006
Posts: 34009
Location: Conejo Valley, CA
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| Posted: Fri Jun 06, 2014 7:49 am Post subject: |
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| Bobnotch wrote: |
| volkoman wrote: |
| Guess I have to replace the line going to rear? Is this difficult? |
It can be. I've gotten into a habit of doing it as a 2 piece line with a metric coupler in the middle. This allows you to feed 1 line to the rear "T" block, and another to the master cylinder and then just couple the 2 together. Any excess line can be put in the area under the rear seat.
I think you need something like 90 inches of tubing total. |
A friend did just this years ago in his bug, and it worked great. Choose lengths carefully so the union in the passenger compartment is in a good spot, perhaps under the rear seat. |
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volkoman
Samba Member
Joined: August 16, 2005
Posts: 50
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| Posted: Sat Jun 07, 2014 4:54 am Post subject: |
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| Any one have an extra master cylinder push rod. The one I had was the short one. From reading here think it will need the longer one. |
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65 misty
Samba Member
Joined: November 24, 2011
Posts: 19
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| Posted: Thu Jan 01, 2015 3:21 pm Post subject: type 3 square master cylinder |
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| Is Ate the brand that works with type 3 master cylinder. Is there another cost effective brand anyone uses. That is for dual disk brake master |
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Erik G
Samba Member
Joined: October 16, 2002
Posts: 13278
Location: Tejas!
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| Posted: Thu Jan 01, 2015 8:17 pm Post subject: |
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ATE is the preferred German original. There may be a chinese equivalent but all of them need to be taken apart and cleaned out. The bus Chinese brand really need to be re-honed straight out of the brand new box
I sense what you are getting at. They are somewhat expensive. Welcome to type 3's. It's worth it to buy the right part, and go through it before install. Peace of mind. I would check the classifieds here, as well as eBay and even Germany eBay. You can buy rebuild kits as well, and even send yours out for rebuild.
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