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#26 |
Grandpa in the rustmobile...
Join Date: Nov 2008
Location: Spokane WA/Viola TN
Posts: 11,422
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Re: need help double flaring a brake line
Ok, that sounded dumb...
I think I have 5/16 or 1/4 going to the rears, I did some of the front in 5/16 as well? Im talking from Mc to prop. valves AND line comming off prop. vavle going to rears is all 5/16 i believe The line going to FRONT brakes from bottom of prop vavle is 1/4 or 3/16 not sure, I htink 3/16, ECE sent it to me prebent, so i assume its correct?
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John Goose-1968 C10 355,9.32-1CR, Vortec Heads ,262 voodoo, 3.73:1 3OTT (HS ride/beater/farm truck) http://67-72chevytrucks.com/vboard/s...d.php?t=317684 Grams 53-1953 Chevrolet Belair http://67-72chevytrucks.com/vboard/s...=1#post4327784 1969 Chevy C10 Shortbed 4.5/6?" Frame off resto http://67-72chevytrucks.com/vboard/s...d.php?t=548136 1999 Toyota Tacoma 4x4 |
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#27 |
Registered User
Join Date: Jun 2006
Location: Indiana
Posts: 4,859
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Re: need help double flaring a brake line
Nope. 1/4" for the rear. At the MC, the NUT is bigger, but still only a 1/4" line. As said by cparman, you will not get a good pedal with line that is too big.
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'70 GMC C1500 LWB Power disc brakes. WooHoo! Posi 6 Lug Dana 60 |
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#28 |
Grandpa in the rustmobile...
Join Date: Nov 2008
Location: Spokane WA/Viola TN
Posts: 11,422
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Re: need help double flaring a brake line
Hmm....
I'll check it all out morrow and letchall know...may have all my lines wrong ![]() So JUST the lines from Mc to prop. vavle, (F/R) What size should those be? Thank you. Ps, I will double check the rears morrow afternoon!
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John Goose-1968 C10 355,9.32-1CR, Vortec Heads ,262 voodoo, 3.73:1 3OTT (HS ride/beater/farm truck) http://67-72chevytrucks.com/vboard/s...d.php?t=317684 Grams 53-1953 Chevrolet Belair http://67-72chevytrucks.com/vboard/s...=1#post4327784 1969 Chevy C10 Shortbed 4.5/6?" Frame off resto http://67-72chevytrucks.com/vboard/s...d.php?t=548136 1999 Toyota Tacoma 4x4 |
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#29 |
Never Ending Projects
Join Date: Jul 2006
Location: San Diego, CA
Posts: 3,836
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Re: need help double flaring a brake line
Yes, don't let the nut size make you think the lines are bigger than they are. I have never seen ANY GM, Ford or Mopar (pre metric ones) with lines that were not either 3/16" or 1/4". Typically you want the same line size from the MC to the prop valve as the lines are to the rest of the system. If you are converting to disc brakes but NOT redoing the hard lines on the frame, everything would be 1/4" lines, which though not correct for the disc brake (i.e. front) lines, will work. If you only were picking one size to use, use 3/16" for everything as it's a little less volume to the drum brakes in the rear but the rears don't do as much work as the front discs.
I have seen some cases where the MC to prop valve, they were bigger than the rest of the system. Still from the prop valve to the brakes they would be one of those two listed above.
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. 1965 C10 Panel, ![]() 1968 Chevy C10, Long, Fleetside, Hot Rod Hauler http://67-72chevytrucks.com/vboard/s...d.php?t=313233 SOLD 1965 Chevy C10, Long, Fleetside, Hot Rod C10 http://67-72chevytrucks.com/vboard/s...d.php?t=415702 SOLD We were given two ears and one mouth for a reason... listen twice as much and speak half as often... |
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#30 |
Grandpa in the rustmobile...
Join Date: Nov 2008
Location: Spokane WA/Viola TN
Posts: 11,422
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Re: need help double flaring a brake line
ok i looked on the label its 1/4" line, imma get some more today though. 3-16? right
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John Goose-1968 C10 355,9.32-1CR, Vortec Heads ,262 voodoo, 3.73:1 3OTT (HS ride/beater/farm truck) http://67-72chevytrucks.com/vboard/s...d.php?t=317684 Grams 53-1953 Chevrolet Belair http://67-72chevytrucks.com/vboard/s...=1#post4327784 1969 Chevy C10 Shortbed 4.5/6?" Frame off resto http://67-72chevytrucks.com/vboard/s...d.php?t=548136 1999 Toyota Tacoma 4x4 |
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#31 |
Grandpa in the rustmobile...
Join Date: Nov 2008
Location: Spokane WA/Viola TN
Posts: 11,422
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Re: need help double flaring a brake line
right now i have 1/4 on everything but prop valve to wheel calipers (FRONT)
so its ok to leave the 1/4 lines from mc to prop valve alone?
__________________
John Goose-1968 C10 355,9.32-1CR, Vortec Heads ,262 voodoo, 3.73:1 3OTT (HS ride/beater/farm truck) http://67-72chevytrucks.com/vboard/s...d.php?t=317684 Grams 53-1953 Chevrolet Belair http://67-72chevytrucks.com/vboard/s...=1#post4327784 1969 Chevy C10 Shortbed 4.5/6?" Frame off resto http://67-72chevytrucks.com/vboard/s...d.php?t=548136 1999 Toyota Tacoma 4x4 |
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#32 |
67-72 parts collector,…
![]() Join Date: Nov 2002
Location: Mid-MO
Posts: 22,698
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Re: need help double flaring a brake line
Did you ever figure out your front brake caliper issues?
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Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823 |
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#33 |
sharp as a marble
![]() Join Date: Jan 2007
Location: atlantic beach,florida
Posts: 1,082
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Re: need help double flaring a brake line
YEP. If you go to MP brakes site you will find a page that describes what you should have ( line size) for a disc/drum set up. If you were to look at a 72 truck you will see 3/16 front and 1/4 rear. It just works brother! Get busy!
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#34 |
Registered User
Join Date: Jun 2006
Location: Indiana
Posts: 4,859
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Re: need help double flaring a brake line
Save your self a lot of aggravation and get the Ni/Cu line at AutoZone. You will thank me later.
__________________
'70 GMC C1500 LWB Power disc brakes. WooHoo! Posi 6 Lug Dana 60 |
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#35 |
Never Ending Projects
Join Date: Jul 2006
Location: San Diego, CA
Posts: 3,836
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Re: need help double flaring a brake line
It's not ideal but yes it will work fine. As long as you have 3/16" from the prop valve to the front calipers, you'll be fine.
__________________
. 1965 C10 Panel, ![]() 1968 Chevy C10, Long, Fleetside, Hot Rod Hauler http://67-72chevytrucks.com/vboard/s...d.php?t=313233 SOLD 1965 Chevy C10, Long, Fleetside, Hot Rod C10 http://67-72chevytrucks.com/vboard/s...d.php?t=415702 SOLD We were given two ears and one mouth for a reason... listen twice as much and speak half as often... |
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#36 |
Grandpa in the rustmobile...
Join Date: Nov 2008
Location: Spokane WA/Viola TN
Posts: 11,422
|
Re: need help double flaring a brake line
lolife-No front lines were slightly kinked, im hoping that was it, idk though.
I have 1/4 on the rear everything 1/4 on Mc-prop valve 3/16 from prop vavle to wheel calipers (FRONT) imma try to bleed em today i'll letchall know how it goes
__________________
John Goose-1968 C10 355,9.32-1CR, Vortec Heads ,262 voodoo, 3.73:1 3OTT (HS ride/beater/farm truck) http://67-72chevytrucks.com/vboard/s...d.php?t=317684 Grams 53-1953 Chevrolet Belair http://67-72chevytrucks.com/vboard/s...=1#post4327784 1969 Chevy C10 Shortbed 4.5/6?" Frame off resto http://67-72chevytrucks.com/vboard/s...d.php?t=548136 1999 Toyota Tacoma 4x4 |
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