79 Supercab
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79 Supercab
Two questions. First, has anyone used the weather strippping kits from JC Whitney?
The other has to do with my brakes. All the componets are new except the Proportioning valve. the truck will stop, but the pedal goes to the floor. I have bled and bled. Sometimes I will get a good tight pedal, but it goes away after I bleed the next wheel. Thanks. Jesse
The other has to do with my brakes. All the componets are new except the Proportioning valve. the truck will stop, but the pedal goes to the floor. I have bled and bled. Sometimes I will get a good tight pedal, but it goes away after I bleed the next wheel. Thanks. Jesse
Laughing Gas
Joined: Jun 1999
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From: Banning CA
79 Supercab
You may have a bad master cyl. IF you are sure you have no leaks. Even though the master may be new, it may be bypassing inside causing a low brake pedal. Take the master back and get a new one
Dave
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Dave
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79 Supercab
Jesse as I said in the past welcome to the club. The brakes on 78-79 trucks suck. I have change every componet and line on my 79 Bronco and bleed and still have a soft pedal like there is air in the lines. the only thing I haven't done is put a pressure gage in line to check pressure and when the weather is better I will do this.J.C. Whitney has some good products I have gotten window trim for my truck and carpet for my 67 Chevelle and I was pleased both times. If you have and dislikes they have a greate return policy.
Dan
Dan
Fleet Owner
Joined: Jun 1999
Posts: 24,552
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From: Creedmoor, North Carolina
79 Supercab
Matt you need to take you truck to a shop where they can work on brakes. There is something wrong with a system that wont lock up on ice. Sounds like air in the lines.
John
66 F100s
In the still cool hours of the night, you can hear chevys rusting away.
John
66 F100s
In the still cool hours of the night, you can hear chevys rusting away.
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79 Supercab
Dear Sir,
I've used JC Whitney for many things,
but when I put in their weatherstip on the
doors of my 79 F100 I was far less than
pleased. The weatherstrip they gave me
is the right shape, but its a cheap repro, for
it is not as thick as the other OEM stuff. I now
have extreme wind noise.... I am going to get
the Dennis Carpenter kit, more expensive but more
reliable according to people I've talked to.
Stay away from the cheap o whitney weatherstrip.
--Michael J. Platt
I've used JC Whitney for many things,
but when I put in their weatherstip on the
doors of my 79 F100 I was far less than
pleased. The weatherstrip they gave me
is the right shape, but its a cheap repro, for
it is not as thick as the other OEM stuff. I now
have extreme wind noise.... I am going to get
the Dennis Carpenter kit, more expensive but more
reliable according to people I've talked to.
Stay away from the cheap o whitney weatherstrip.
--Michael J. Platt
New User
Joined: Jul 1999
Posts: 22
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79 Supercab
Jesse, it may have something to do with your power assist hose that runs from your master cylinder to the back of your engine block. I had the same problem with mine, it was just that the vacuum T at the back wasn't threaded in properly or had come loose, when tightened I noticed a considerable difference, you never know that might be all it is.
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Senior User
Joined: Jun 1999
Posts: 288
Likes: 1
79 Supercab
I, too have a ' 78 F150 with evedentally an inherent brake "problem" my brakes have been pretty much the same since I've owned the truck, the pedal is pretty firm, but it takes alot of pressure on the pedal to stop,(mind you these are power assisted brakes) I have recently due to wear replaced the rear brakes with brand new quality Wagner wheel cylinders, shoes, and all hold down hardware, and bled the whole system using dot 5 fluid, yes the truck stops ok, but not as well as I'd like, I have compaired the trucks brake system to that on my ' 83 Lincoln Town Car, both have drum rear, disc front, power assisted brakes, both weigh about the same, so does anyone know the soultion ???
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Senior User
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Posts: 139
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79 Supercab
This is where I am at. The not locking up I suppose was overkill. It WILL lock up, you just have to step on the brakes, grab the steering wheel, and push your foot down with your arms. It'll stop, the brakes aren't squishy, My booster is sealed fine, good vacuum (over 17), new brake fluid and 99% of parts (one caliper hasn't been changed, or the proportioning valve). Bled, bled, bled some more, and bled it one more time for the hell of it. Put telfon tape (the stuff for petroleum based products) on all the bleeder threads, all brake line thread....Not gunna worry about it now though. It stops, just not like a new car. Worried more bout the engine right now. (in the process of being taken apart and sent to be machined...my mains where at almost .03"!!)
Matt
Matt
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79 Supercab
>Matt you need to take you truck
>to a shop where they can
>work on brakes. There is something
>wrong with a system that wont
>lock up on ice. Sounds like
>air in the lines.
>John
>66 F100s In the still cool hours
>of the night, you can hear
>chevys rusting away.
I guess that was a bit off... They'll lock up if you REALLY try..(btw, I said they would lock up on ice, just no where else...sorry bout the confusion.)
>to a shop where they can
>work on brakes. There is something
>wrong with a system that wont
>lock up on ice. Sounds like
>air in the lines.
>John
>66 F100s In the still cool hours
>of the night, you can hear
>chevys rusting away.
I guess that was a bit off... They'll lock up if you REALLY try..(btw, I said they would lock up on ice, just no where else...sorry bout the confusion.)
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Joined: Jun 1999
Posts: 861
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From: SE PA
79 Supercab
My brakes are also leave something to be desired. After replacing the booster, I had to adjust the rod. Mine was the whole way in-short as it could be, I adjusted this, it's just threaded, and now, while my pedal still moves farther than I like, I can get good not great braking-be sure not to over adjust this as if you go to far the rears won't release fully and will drag. Mine took about two full turns to "dial" it in. For what it's worth, I've never meet anybody else with this model/year who has anything better, the brakes are there, but, the travel of the pedal always seems to be 3/4 of the way to the floor before the brakes come on. For the longest time I thought something must be wrong, not, this is just the way they are! In 4x4's anyway. Chuck P.
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Posts: 3
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79 Supercab
We have a '79 Super cab F-150. Had it since it rolled of the line in 9/78. Recently when it was painted, inside and out, all the rubber was replaced by JC Whitney stuff. The stuff seems to work okay for now. The new stuff requires that you slam the door because it seals well, but I do not know how it will hold up. As for the brakes, you will drive your self insane before you get them to stop well. My father worked for the largest user of Ford Trucks in the world. He use to test hitches and braking systems. The guys at the shop spent hours, along with the techs from the factory to try to give a better feel. This work was to help when stopping that 460 hooked up to a 9000 lb trailer . My long awaited point. Give-up, they will never be really strong.
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