Broken hose.
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Junior User
Joined: Jan 2009
Posts: 91
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From: Phoenix
Broken hose.
Crawling around under my truck, looking to see what I have gotten myself into I found a broken rubber hose.
It appears to be connected to a brake line "T" junction that is mounted on the drivers side of the rear differential/axle.
The truck seems to run and brake just fine however.
I haven't had a chance to trace where the hose runs to yet.
Its attached with a "crimp" type fitting so I will have to figure out how to reattach the hose once I replace it.
1978 F150 Supercab 400 4x4.
Other than that, forgive me, I haven't had a vehicle I have had to (or was able to) work on in 20 years!
Thanks,
Mike...
It appears to be connected to a brake line "T" junction that is mounted on the drivers side of the rear differential/axle.
The truck seems to run and brake just fine however.
I haven't had a chance to trace where the hose runs to yet.
Its attached with a "crimp" type fitting so I will have to figure out how to reattach the hose once I replace it.
1978 F150 Supercab 400 4x4.
Other than that, forgive me, I haven't had a vehicle I have had to (or was able to) work on in 20 years!
Thanks,
Mike...
Laughing Gas
Joined: Dec 2007
Posts: 1,052
Likes: 2
From: Alvarado, TX
It does sound like the diff vent line. Just cut the crimped clamp with a pair of wire cutters, attach a new hose (3/8" fuel line works well) and put a regular hose clamp on it. The other end just goes up to a clip on the inside of the framerail. You can even put a small filter in the top end of the line for added insurance. I use the 99 cent see through filters so I can see if anything gets in it.
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Junior User
Joined: Jan 2009
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From: Phoenix
Entirely possible.
The "T" fitting it goes into has metal lines running from it to each of the back brakes.
I will run the other end of the hose to see where it goes. Then I can find out how long of a hose to replace it with. It is likely as old as everything else on this truck.
The "T" fitting it goes into has metal lines running from it to each of the back brakes.
I will run the other end of the hose to see where it goes. Then I can find out how long of a hose to replace it with. It is likely as old as everything else on this truck.
Postmaster
Joined: Aug 2005
Posts: 2,760
Likes: 8
From: Gadsden Purchase
The crazy thing is a T for the brake lines too, besides an axle vent.
And if his front brakes were still working and he's new to the vehicle, he
might not know the rear brakes ain't working. FMC, you know me, I'm
not a safety nut but seems like we need to make sure he understands
what that crazy setup is all about.
It's a brass block that does three things...
1) holds the steel brake lines to the axle.
2) provides a solid support and connection for the flexible brake hose
from the frame to the axle.
3) both a vent for the axle and a solid connection for the axle vent's hose.
Be careful with it. ;)
I used a small hose clamp and 3/8"(?) fuel hose to replace my vent hose.
Alvin in AZ
MSEE
Joined: Apr 2004
Posts: 10,386
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From: Austin, TX
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Junior User
Joined: Jan 2009
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From: Phoenix
Fortunately I have another car to drive.
The opening was filled w/ schmootz so I will have to try to clean that out as best I can w/o pushing it all further in.
And yes, it is a "brass block" on the top of the drivers side of the rear axle. The lines are all metal however. From that block all the way into the brakes.
Looks like I have a project when I get home from work tomorrow.
Mike...
The opening was filled w/ schmootz so I will have to try to clean that out as best I can w/o pushing it all further in.
And yes, it is a "brass block" on the top of the drivers side of the rear axle. The lines are all metal however. From that block all the way into the brakes.
Looks like I have a project when I get home from work tomorrow.
Mike...
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Postmaster
Joined: Aug 2005
Posts: 2,760
Likes: 8
From: Gadsden Purchase
All the one-way valves are in the master cylinder.
Pretty clever setup, does everything they needed doing, all in one part.
Alvin in AZ
