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bench bleeding / brake overhaul

 
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Greg



Joined: 12 Aug 2009
Posts: 490
Location: Jefferson, GA

1969 Volkswagen Beetle

PostPosted: Fri Oct 19, 2012 2:21 pm    Post subject: bench bleeding / brake overhaul Reply with quote

If I'm replacing the master cylinder, do I / should I bench bleed it?
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1974 Westy FI Conversion


Last edited by Greg on Sat Oct 27, 2012 6:42 pm; edited 1 time in total
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Joe



Joined: 01 Jun 2006
Posts: 453
Location: Hephzibah,Ga


PostPosted: Fri Oct 19, 2012 2:51 pm    Post subject: Reply with quote

yep, it helps out
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Greg



Joined: 12 Aug 2009
Posts: 490
Location: Jefferson, GA

1969 Volkswagen Beetle

PostPosted: Fri Oct 19, 2012 3:11 pm    Post subject: Reply with quote

cool, I'll ad it to the list, thanks
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Jon
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Joined: 01 Jun 2006
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Location: Bishop GA

1969 Volkswagen Type 3

PostPosted: Fri Oct 19, 2012 3:30 pm    Post subject: Reply with quote

I've never bench bled a VW master cylinder and I always stop. Shocked
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Mountain Power House



Joined: 26 Jul 2006
Posts: 879
Location: Aircooled Heaven USA


PostPosted: Fri Oct 19, 2012 8:15 pm    Post subject: Reply with quote

Replace the master and fill the reservoir.. Crack open the rear bleeders and walk away. After about 10 minutes you'll see fluid leaking out of them. Close the bleeders and do the same thing on the front bleeders. Once they have drip bled you have effectively bench bled the master and the entire system.

Start at the rear cylinders and bleed them conventionally, you'll see that you only have to pump them about twice to get clear fluid out of them.

This works and is very simple.
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Jake Raby
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Greg



Joined: 12 Aug 2009
Posts: 490
Location: Jefferson, GA

1969 Volkswagen Beetle

PostPosted: Sat Oct 27, 2012 6:51 pm    Post subject: rear brakes Reply with quote

Thanks for the advise. I bet it would work great....except...I didn't check my bleeder valves before I started this process. One is sheared off (before I bought it) , the other will be shortly if I continue. I think I can replace the calipers but I don't have a way of getting the nut off/on. Any thoughts?

Also, anything else to replace besides the calipers and brakes to replace once I'm in there?
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Clyde



Joined: 03 Jun 2006
Posts: 855
Location: Athens


PostPosted: Sun Oct 28, 2012 9:59 am    Post subject: Reply with quote

I can drill out your broken bleeder screws if you want. Alot cheaper than buying new Bus calipers.
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Greg



Joined: 12 Aug 2009
Posts: 490
Location: Jefferson, GA

1969 Volkswagen Beetle

PostPosted: Sun Oct 28, 2012 12:16 pm    Post subject: Reply with quote

Sorry, I meant wheel cylinders, I'm so used to talking about disc brakes. I've never been into drum brakes. Wonder if it's pretty straight forward. (i just replaced the master cylinder and booster). I'm kinda worried about getting the axle nut off. (Assuming I need to)
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Jon
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Joined: 01 Jun 2006
Posts: 2421
Location: Bishop GA

1969 Volkswagen Type 3

PostPosted: Sun Oct 28, 2012 2:56 pm    Post subject: Reply with quote

If this is for your bus, the big nut doesn't need to come off to remove the drum.
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Greg



Joined: 12 Aug 2009
Posts: 490
Location: Jefferson, GA

1969 Volkswagen Beetle

PostPosted: Sun Oct 28, 2012 5:28 pm    Post subject: Reply with quote

Awesome, I may try to tackle it this week then, thanks
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