TheSamba.com :: View topic

Tue Jan 01, 2019 5:42 pm

It’s the dual that came in the kit, and nope, no fitting.

Tue Jan 01, 2019 7:07 pm

zozo wrote: I’m getting zero bubbles and have bled via the pumping, the one man method, and the MityVac at least a dozen times. I’m getting no bubbles at all, but I still don’t feel like I’m getting the pedal I should have. I adjusted the rears all the way out, etc etc.

How can I measure the pushrod clearance? When I push/pull it manually, there’s a very slight movement and a click that I assume is the rod making contact. Very minimal movement, but I can’t say for certain it’s 1mm.

Thoughts?

(And no, I didn’t bench bleed the MC.)

It sounds like you don't have there push rod adjusted properly. If the master cylinder isn't allowed to return all the way it blocks a fill port. It is 1mm of play at the pedal. That equates to 1/2 a cunt hair at the end of the rod.
That's where I would start looking....

You asked how to measure:
I crawl under the bus and grab the brake pedal arm and move it manually. You can then see where all the slop and movements are. The push rod is set with a lock nut. Crack it free and screw it in while moving the brake pedal arm. You will see/feel really fast if its set properly or not. It should not touch the plunger in the MC while at rest.

Wed Jan 02, 2019 1:36 pm

Just curious if there is a handy conversion somewhere for millimeters to cunt hair?

Asking for a friend.

Wed Jan 02, 2019 1:54 pm

66uno wrote: Just curious if there is a handy conversion somewhere for millimeters to cunt hair?

Asking for a friend.

Given the age of these buses, I'd assume one would have to factor in the coarseness that comes with age.

Wed Jan 02, 2019 2:12 pm

zozo,

What wheels are you running? If stock 14" any fit issues?

Wed Jan 02, 2019 2:41 pm

matthew henricks wrote: zozo,

What wheels are you running? If stock 14" any fit issues?

Yes, sir, stock 14". No sir, no fitment issues at all.

I am curious if I should put a bit of loctite on the studs. When I remove the lug nuts, they either come out or turn to be loose. Thoughts?

Wed Jan 02, 2019 3:05 pm

zozo wrote:
Thoughts?

It sounds like you don't have there push rod adjusted properly. If the master cylinder isn't allowed to return all the way it blocks a fill port. It is 1mm of play at the pedal. That equates to 1/2 a cunt hair at the end of the rod.

I'm pretty sure you have that wrong, I think it's 1mm at the pushrod.

Wed Jan 02, 2019 3:57 pm

Bruce Amacker wrote: zozo wrote:
Thoughts?

It sounds like you don't have there push rod adjusted properly. If the master cylinder isn't allowed to return all the way it blocks a fill port. It is 1mm of play at the pedal. That equates to 1/2 a cunt hair at the end of the rod.

I'm pretty sure you have that wrong, I think it's 1mm at the pushrod.

I stand corrected. It is 1mm clearance between pushrod and piston.
B-2, page 4 in the big blue book

Wed Jan 02, 2019 5:57 pm

Does this look right to you? It had about 10mm of travel, rather than 1.

https://www.facebook.com/100010138415670/posts/770293553318585?sfns=mo

Wed Jan 02, 2019 6:03 pm

zozo wrote: Does this look right to you? It had about 10mm of travel, rather than 1.

https://www.facebook.com/100010138415670/posts/770293553318585?sfns=mo

Mort's looks correct.
Yours had 10mm?

Wed Jan 02, 2019 6:07 pm

dlicious wrote: zozo wrote: Does this look right to you? It had about 10mm of travel, rather than 1.

https://www.facebook.com/100010138415670/posts/770293553318585?sfns=mo

Mort's looks correct.
Yours had 10mm?

Yup. It was at least 10mm, likely more.

BTW, I am Mort, aka Zozo, aka John (real name).

Wed Jan 02, 2019 6:16 pm

zozo wrote: dlicious wrote: zozo wrote: Does this look right to you? It had about 10mm of travel, rather than 1.

https://www.facebook.com/100010138415670/posts/770293553318585?sfns=mo

Mort's looks correct.
Yours had 10mm?

Yup. It was at least 10mm, likely more.

BTW, I am Mort, aka Zozo, aka John (real name).

I'm sure our paths will meet someday.
Did adjusting the pushrod fix your problem?

Wed Jan 02, 2019 6:32 pm

dlicious wrote: zozo wrote: dlicious wrote: zozo wrote: Does this look right to you? It had about 10mm of travel, rather than 1.

https://www.facebook.com/100010138415670/posts/770293553318585?sfns=mo

Mort's looks correct.
Yours had 10mm?

Yup. It was at least 10mm, likely more.

BTW, I am Mort, aka Zozo, aka John (real name).

I'm sure our paths will meet someday.
Did adjusting the pushrod fix your problem?

The pedal is exactly what I’d hoped for. The $64,000 question is what will the pedal be like once it’s on the ground and I start to drive it. I’m getting real used to disappointment, but for the moment, confidence is high.

Sun Jan 06, 2019 2:40 pm

FWIW, I had terrible luck bleeding my brakes until I did it with the front end raised about a foot. Read that trick on some non VW forum and it worked great.

Sun Jan 06, 2019 3:02 pm

Z wrote: FWIW, I had terrible luck bleeding my brakes until I did it with the front end raised about a foot. Read that trick on some non VW forum and it worked great.

It worked for me as well. I finally got to drive it on Friday and they work great. They feel so odd compared to stock, and feel considerably different from modern power disks, but I’ll get used to it. I can’t argue with their performance. Safety first.

Wed Jan 09, 2019 10:56 am

zozo wrote: Z wrote: FWIW, I had terrible luck bleeding my brakes until I did it with the front end raised about a foot. Read that trick on some non VW forum and it worked great.

It worked for me as well. I finally got to drive it on Friday and they work great. They feel so odd compared to stock, and feel considerably different from modern power disks, but I’ll get used to it. I can’t argue with their performance. Safety first.

Cool...good to know, & glad to see you're happy with it. I'm really encouraged at the good results with this kit.

Wed Jan 09, 2019 1:06 pm

Z wrote: zozo wrote: Z wrote: FWIW, I had terrible luck bleeding my brakes until I did it with the front end raised about a foot. Read that trick on some non VW forum and it worked great.

It worked for me as well. I finally got to drive it on Friday and they work great. They feel so odd compared to stock, and feel considerably different from modern power disks, but I’ll get used to it. I can’t argue with their performance. Safety first.

Cool...good to know, & glad to see you're happy with it. I'm really encouraged at the good results with this kit.

I am as well, and have recommended the same kit to others.

Thu Jan 10, 2019 8:45 am

Thank you for the reports Zozo. Your report and a recent sale price tipped the scale and i now have a AC Industries disc brake kit for my 65 in the garage.

Now the hunt for the same for my 60 w/ stock 15" rims. EMPI "quality" or German (CSP) price. As far as i can tell these are the only two options for stock 15" crows feet rims.

Thu Jan 17, 2019 3:02 pm

I installed my second AC set and had a minor problem I thought I'd tell you about. The rear check valve was stuck closed, not allowing the rear brakes to bleed. I removed the line and check valve (left valve in the picture), bled it at the MC port with my finger, and put the check valve back in. I then bled it at the valve with my finger, then connected the line. It bled easily at the rear wheels from there. No biggie, 10 minutes max.

Wed Jan 23, 2019 3:04 pm

I didn't see a listing for 63 and earlier disc brakes from AC. Is there not one available for the early spindles?