|
Sponsored Links (Register now to hide all advertisements) |
|
|
Thread Tools | Display Modes |
10-11-2020, 11:29 AM | #1 |
Senior Member
Join Date: Dec 2015
Posts: 553
|
F1 truck MC bench bleed
I have read about bleeding the master cylinder on the bench. I thought I would try this with a new Wagner MC I bought. I was going to assemble it complete with the three way fitting and stop light switch. Attach a couple short flared brake pipes to the fitting to bleed it. How do I keep from reintroducing air into the cylinder when swapping the short bleeder pipes with the actual brake lines. Seems like the fluid would leak down and air would be introduced making the whole process a waste of time?
JB |
10-11-2020, 11:58 AM | #2 |
Senior Member
Join Date: Oct 2015
Location: Socal
Posts: 795
|
Re: F1 truck MC bench bleed
Did brakes and suspension for a living at a couple of shops.
Bench bleeding was done very seldom. In general it's a waste of time. If done, you're supposed to plug the port(s) afterwards and install the MC, remove the plugs and install the vehicle's brake fittings. |
Sponsored Links (Register now to hide all advertisements) |
|
10-11-2020, 12:08 PM | #3 | |
Senior Member
Join Date: Dec 2015
Posts: 553
|
Re: F1 truck MC bench bleed
Quote:
JB |
|
10-11-2020, 02:17 PM | #4 |
Senior Member
Join Date: Dec 2013
Location: Minnesota, Florida Keys
Posts: 10,420
|
Re: F1 truck MC bench bleed
Done it with dual chamber master when the instructions recommended it. I don't think its needed with a singular chamber unit. I've never done it and have never had a problem.
|
10-11-2020, 03:06 PM | #5 |
Senior Member
Join Date: May 2012
Location: u-rah-rah-Wisconsin
Posts: 1,144
|
Re: F1 truck MC bench bleed
The plugs sorta keep the air out. The MC doesn't create much of an issue when bleeding. You are correct to move along to other tasks.
__________________
19 and 49 F1 - jes' like Henry II built 1946 Deluxe - as Henry built it |
10-11-2020, 03:27 PM | #6 |
Senior Member
Join Date: Jul 2012
Location: Bellingham, WA
Posts: 213
|
Re: F1 truck MC bench bleed
Sponsored Links (Register now to hide all advertisements)
|
10-11-2020, 04:39 PM | #7 |
Senior Member
Join Date: May 2010
Location: Wisconsin, USA
Posts: 9,073
|
Re: F1 truck MC bench bleed
Tubman, you are correct... it is not necessary on a single chamber master.
__________________
"I can explain it for you. However, I can't understand it for you". |
10-11-2020, 08:26 PM | #8 |
Member
Join Date: Aug 2020
Location: Heart of Dixie ( Alabama)
Posts: 63
|
Re: F1 truck MC bench bleed
Pretty much impossible on that design master cylinder. Think about it, the fluid is going to run out when you make the connection and you'll have to bleed it again anyway. The only thing accomplished is a mess.
|
10-11-2020, 08:49 PM | #9 |
Senior Member
Join Date: Dec 2015
Posts: 553
|
Re: F1 truck MC bench bleed
Thanks team for the insight. The reason why I circled back on the MC was because it seems like I have to push the pedal further on our 52 build than our 50 driver to get a taillight response. I was thinking I might have trapped air in the MC somewhere. We are about to swap out front drums (swapping to some nice turned originals) and I am going to use a pressure bleeder while doing the job to make sure all the lines and MC are bled appropriately.
JB |
10-11-2020, 09:49 PM | #10 |
Junior Member
Join Date: Mar 2013
Posts: 13
|
Re: F1 truck MC bench bleed
3twinridges,
Now is the time to think about a dual M/C, I have a F-1 that I just install a dual M/C and will feel safer knowing I will not lose all the brakes if I should lose 1 brake line, I bought the conversion kit from Ebay, very simple to install. Total cost for new lines and the conversion kit was less than 250.00 If you have any questions PM me. Tim |
10-12-2020, 12:24 AM | #11 |
Senior Member
Join Date: Feb 2020
Location: Hayward,CA
Posts: 513
|
Re: F1 truck MC bench bleed
Since 1954 I’ve been bolting master cylinders to the vehicle and bench bleeding them right on the car.
Never have figured out what bleeding them on the bench does. Do the same with dual master cylinders. |
|
|
Sponsored Links (Register now to hide all advertisements) |
|