Hydroboost Upgrade
Posting Guru
Joined: Jul 2011
Posts: 1,650
Likes: 16
From: DFW Texas
Oh, well I thought making one cut and one weld was pretty simple. And the hydro is flush with the firewall. I guess if you have no means to weld then the spacer will do it.
Cargo Master
Joined: Feb 2003
Posts: 2,341
Likes: 5
From: Sacramento
ah yes. I wasn't thinking about that part of the picture.
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Cargo Master
Joined: Jul 2003
Posts: 2,721
Likes: 20
From: Four Oaks, NC
ultraranger: "That's the way it goes when adapting something that wasn't designed for what you're trying to put it on."
- I know, right? And then when I tried to 'out-think' it I just made more work for myself. D'oh!
f100today: "I just cut a section out of the push rod and welded it back together."
- I thought about that, but to me it seemed easier to just add some spacers. Now in hindsight, your way seems better.
nevrenufhp: "I think it would be easier to cut the spacers down 1/8" at a time. Widdle em down til you get the desired pedal."
- If you knew how difficult it is to get this thing in place you would not suggest that! lol. It's heavy, awkward, you have to be twisted & bent in 2 positions to maneuver yourself over the fender & around the hood hinge, holding it with 1 hand while trying to start a bolt & keep a spacer in place with the other hand. In muggy NC summer heat.
- I know, right? And then when I tried to 'out-think' it I just made more work for myself. D'oh!
f100today: "I just cut a section out of the push rod and welded it back together."
- I thought about that, but to me it seemed easier to just add some spacers. Now in hindsight, your way seems better.
nevrenufhp: "I think it would be easier to cut the spacers down 1/8" at a time. Widdle em down til you get the desired pedal."
- If you knew how difficult it is to get this thing in place you would not suggest that! lol. It's heavy, awkward, you have to be twisted & bent in 2 positions to maneuver yourself over the fender & around the hood hinge, holding it with 1 hand while trying to start a bolt & keep a spacer in place with the other hand. In muggy NC summer heat.
Cargo Master
Joined: Feb 2003
Posts: 2,341
Likes: 5
From: Sacramento
[/QUOTE]
- If you knew how difficult it is to get this thing in place you would not suggest that! lol. It's heavy, awkward, you have to be twisted & bent in 2 positions to maneuver yourself over the fender & around the hood hinge, holding it with 1 hand while trying to start a bolt & keep a spacer in place with the other hand. In muggy NC summer heat.[/QUOTE]
I do know how painful it is, I did it a few months ago.
- If you knew how difficult it is to get this thing in place you would not suggest that! lol. It's heavy, awkward, you have to be twisted & bent in 2 positions to maneuver yourself over the fender & around the hood hinge, holding it with 1 hand while trying to start a bolt & keep a spacer in place with the other hand. In muggy NC summer heat.[/QUOTE]
I do know how painful it is, I did it a few months ago.
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Cargo Master
Joined: Jul 2003
Posts: 2,721
Likes: 20
From: Four Oaks, NC
- If you knew how difficult it is to get this thing in place you would not suggest that! lol. It's heavy, awkward, you have to be twisted & bent in 2 positions to maneuver yourself over the fender & around the hood hinge, holding it with 1 hand while trying to start a bolt & keep a spacer in place with the other hand. In muggy NC summer heat.[/QUOTE]
I do know how painful it is, I did it a few months ago.[/QUOTE]
I hope you didn't have to take it out & remount it several times! I am glad I made my holes bigger than the bolt it's the only thing saving me & letting me get them started.
I do know how painful it is, I did it a few months ago.[/QUOTE]
I hope you didn't have to take it out & remount it several times! I am glad I made my holes bigger than the bolt it's the only thing saving me & letting me get them started.
Cargo Master
Joined: Oct 2011
Posts: 2,237
Likes: 299
From: Kenner,La.
master cylinder
Cracker, I am using a M -C aluminum 1&1/8" from a F150.
A word of caution on Hydro Boost, make sure to test it for the residual assist without the engine running, they some time do not assist when the engine is off and the pedal goes to the floor. Try it where there is a lot of room by stopping the engine and checking the assist. I had one that must have been defective and one day I pushed in the clutch to coast to a stop sign and the engine died, the pedal went to the floor, if I had an automatic I would have wrecked my XL. I just let out the clutch and saved it.
A word of caution on Hydro Boost, make sure to test it for the residual assist without the engine running, they some time do not assist when the engine is off and the pedal goes to the floor. Try it where there is a lot of room by stopping the engine and checking the assist. I had one that must have been defective and one day I pushed in the clutch to coast to a stop sign and the engine died, the pedal went to the floor, if I had an automatic I would have wrecked my XL. I just let out the clutch and saved it.
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Cargo Master
Joined: Jul 2003
Posts: 2,721
Likes: 20
From: Four Oaks, NC
Cracker, I am using a M -C aluminum 1&1/8" from a F150.
A word of caution on Hydro Boost, make sure to test it for the residual assist without the engine running, they some time do not assist when the engine is off and the pedal goes to the floor. Try it where there is a lot of room by stopping the engine and checking the assist. I had one that must have been defective and one day I pushed in the clutch to coast to a stop sign and the engine died, the pedal went to the floor, if I had an automatic I would have wrecked my XL. I just let out the clutch and saved it.
A word of caution on Hydro Boost, make sure to test it for the residual assist without the engine running, they some time do not assist when the engine is off and the pedal goes to the floor. Try it where there is a lot of room by stopping the engine and checking the assist. I had one that must have been defective and one day I pushed in the clutch to coast to a stop sign and the engine died, the pedal went to the floor, if I had an automatic I would have wrecked my XL. I just let out the clutch and saved it.
I decided to go with a 1-1/8 bore m/c as well, from a 70's Lincoln. The cast iron style is very similar to the original so it won't look out of place, like the later model cylinder shaped aluminum m/c with plastic reservoir from the F450 would have.
Elder User
Joined: Jan 2012
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From: AL
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Cargo Master
Joined: Jul 2003
Posts: 2,721
Likes: 20
From: Four Oaks, NC
I'll have an update tomorrow! It's pretty hot & muggy lately and I have not spent much time out in the heat working on it but I have to make progress in the next couple of days so I can move my truck.
Do you already have disc brakes?
Do you already have disc brakes?
Elder User
Joined: Jan 2012
Posts: 896
Likes: 0
From: AL
Yes, my truck came with the dual piston Dayton front disc brakes and it has the larger rear drums. I put the F350 dual diaphragm booster on it. It's stops well and doesn't require a ton of pressure but I'd like to make it easier with hydroboost.
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Cargo Master
Joined: Jul 2003
Posts: 2,721
Likes: 20
From: Four Oaks, NC
I finally got the spacers right. Using 1-1/4 spacers at the top and 1-1/2 spacers at the bottom, my brake pedal is perfect. Does not come up too far and does not go down too far.
http://i1020.photobucket.com/albums/...pspa4qeehd.jpg
http://i1020.photobucket.com/albums/...psk2gicjg0.jpg
http://i1020.photobucket.com/albums/...ps90ntabdb.jpg
http://i1020.photobucket.com/albums/...pspa4qeehd.jpg
http://i1020.photobucket.com/albums/...psk2gicjg0.jpg
http://i1020.photobucket.com/albums/...ps90ntabdb.jpg
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Cargo Master
Joined: Jul 2003
Posts: 2,721
Likes: 20
From: Four Oaks, NC
- If you knew how difficult it is to get this thing in place you would not suggest that! lol. It's heavy, awkward, you have to be twisted & bent in 2 positions to maneuver yourself over the fender & around the hood hinge, holding it with 1 hand while trying to start a bolt & keep a spacer in place with the other hand. In muggy NC summer heat.[/QUOTE]
I do know how painful it is, I did it a few months ago.[/QUOTE]
Putting it on and taking it off was killing me, bad angle to try to hold it in place, spacers kept falling off and I'd have to put it down, crawl under the truck and retrieve them. Finally I decided to mount it on threaded rod instead so I could just slide it on and off. Doesn't look as good as it did with bolts but it was easier and plenty functional.
<a href="http://s1020.photobucket.com/user/crazycracker289/media/F-100/69%20F100%20Brake%20Upgrade/IMG_0313_zps2uuffzaj.jpg.html" target="_blank"><img src="http://i1020.photobucket.com/albums/af330/crazycracker289/F-100/69%20F100%20Brake%20Upgrade/IMG_0313_zps2uuffzaj.jpg" border="0" alt=" photo IMG_0313_zps2uuffzaj.jpg"/></a>
I do know how painful it is, I did it a few months ago.[/QUOTE]
Putting it on and taking it off was killing me, bad angle to try to hold it in place, spacers kept falling off and I'd have to put it down, crawl under the truck and retrieve them. Finally I decided to mount it on threaded rod instead so I could just slide it on and off. Doesn't look as good as it did with bolts but it was easier and plenty functional.
<a href="http://s1020.photobucket.com/user/crazycracker289/media/F-100/69%20F100%20Brake%20Upgrade/IMG_0313_zps2uuffzaj.jpg.html" target="_blank"><img src="http://i1020.photobucket.com/albums/af330/crazycracker289/F-100/69%20F100%20Brake%20Upgrade/IMG_0313_zps2uuffzaj.jpg" border="0" alt=" photo IMG_0313_zps2uuffzaj.jpg"/></a>
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Cargo Master
Joined: Jul 2003
Posts: 2,721
Likes: 20
From: Four Oaks, NC
I finished my conversion yesterday, went for a test drive. The pedal feel is perfect in my opinion, I was worried about it being overly sensitive because of some of the stories I had read, but it was actually fine. The pedal moves about an inch or so and then it feels nice and solid. You can press a little to slow down or if you really want, jam it hard and make it stop on a dime.
http://i1020.photobucket.com/albums/...psarfzunsl.jpg
Adjustable prop valve in case I need to tweak things later.
http://i1020.photobucket.com/albums/...psze7n0ug7.jpg
http://i1020.photobucket.com/albums/...psarfzunsl.jpg
Adjustable prop valve in case I need to tweak things later.
http://i1020.photobucket.com/albums/...psze7n0ug7.jpg
