 bench bleeding MC in the car - how to video, open system method with 914 rubber 19mm MC |
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| iankarr |
 Apr 13 2018, 06:34 PM
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#1
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The wrencher formerly known as Cuddy_K  Group: Members Posts: 2,473 Joined: 22-May 15 From: Heber City, UT Member No.: 18,749 Region Association: Intermountain Region 
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Hi Guys,
Since our MC's don"t have an integrated reservoir, bench bleeding can involve a Rube Goldberg-style setup. Here's a quick video of how I did mine in the car, using the existing plumbing. After bleeding the 914 Rubber 19mm MC, I used a combination of Eric at PMB's gravity method and a motive pressure bleeder at 5 psi. Pedal is perfect and brakes are so much better! See the notes for more detail and links. and, as always please let me know if anything in the video can be improved. Enjoy! https://www.youtube.com/watch?v=OOSer774NqM |
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Replies(1 - 5)
| Big Len |
Apr 13 2018, 09:46 PM
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#2
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Senior Member Group: Members Posts: 1,747 Joined: 16-July 13 From: Edgewood, New Mexico Member No.: 16,126 Region Association: Southwest Region |
Awesome job.....again !
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| MarkV |
Apr 13 2018, 10:45 PM
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#3
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Fear the Jack Stands Group: Members Posts: 1,493 Joined: 15-January 03 From: Sunny Tucson, AZ Member No.: 154 Region Association: None |
I always thought "bench bleeding" meant pre-bleeding the master on a bench to remove air before installing the master in the car. That would be hard to do in a 914 because the reservoir is remote.
https://www.youtube.com/watch?v=523fHbmbdsQ I know on some cars it is really hard to get all of the air out of the system when installing a new master. Never installed a master on a 914 so I don't know if bench bleeding is necessary. From your video it looks like you didn't have a problem. Nice video! |
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| HansJan |
Apr 13 2018, 10:56 PM
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#4
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Member Group: Members Posts: 395 Joined: 5-April 16 From: Sugar Land TX Member No.: 19,860 Region Association: Southwest Region
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Completely love these videos... Makes me feel that I could actually do this work. Please Please Please, save them in a place where we can find them when needed.
(Bought the parts during the Group-Buy, but have been hesitant to start the work.) Thanks for telling us how to keep these cars alive. PS: How do you guys convince the wife and kids that these old cars are actually cool? Mine seem to not understand why I traded the Cayenne Turbo for this. |
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| GeorgeRud |
Apr 14 2018, 10:03 AM
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#5
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Advanced Member Group: Members Posts: 3,725 Joined: 27-July 05 From: Chicagoland Member No.: 4,482 Region Association: Upper MidWest |
I’ve found that after you bleed the brakes after replacing calipers ( I use manual and pressure bleeding), taking the car out for a drive on a bumpy road and bleeding the brakes one more time sometimes helps to dislodge those last bubbles of air in the system. Once they’re fully bled, the brake pedal is really quite firm.
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| iankarr |
Apr 14 2018, 02:03 PM
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#6
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The wrencher formerly known as Cuddy_K Group: Members Posts: 2,473 Joined: 22-May 15 From: Heber City, UT Member No.: 18,749 Region Association: Intermountain Region
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QUOTE(MarkV @ Apr 14 2018, 12:45 AM)  I always thought "bench bleeding" meant pre-bleeding the master on a bench to remove air before installing the master in the car. That would be hard to do in a 914 because the reservoir is remote. Good Video Thanks Mark. Exactly. This method uses the plumbing in the car to bleed the MC...no bench needed. Thanks Hans Jan. Go for it! It's really not that difficult and makes a huge difference. |
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