Notices
Offroad & 4x4
Sponsored by:
Sponsored by:

Hydro Boost Question

Thread Tools
 
Search this Thread
 
Old Feb 19, 2014 | 03:19 PM
  #1  
thekingofcows's Avatar
thekingofcows
Thread Starter
|
Elder User
Joined: Oct 2009
Posts: 871
Likes: 1
From: New Albany, MS
Hydro Boost Question

I've googled around, but I haven't found a definitive answer so here's my question:

What are the sizes of the fittings on the 99-2000 hydroboost units.

I'm seeing 18mmx1.5 for the pressure and 16x.1.5 for the booster to the box, but I'm also getting conflicting information saying that both fittings are 16x1.5. Can anybody clarify which fittings the 2000 booster should have?

Also is there a difference in fittings on the post 2001 hydroboost units?

I haven't been to the Junkyard yet to pick up the booster, so I'm trying to figure out what I'm getting before I go.
 
Reply
Old Feb 19, 2014 | 09:25 PM
  #2  
73 ford guy's Avatar
73 ford guy
Postmaster
Joined: Oct 2005
Posts: 3,083
Likes: 4
From: Victoria , BC
18 and 16 sound right. Factory lines that go in have a O ring to seal at end. I eliminated that when I did my custom lines by placing ferrules inside the hydro boost holes so then I could just run lines with an inverted flare instead.
 
Reply
Old Feb 19, 2014 | 09:34 PM
  #3  
73 ford guy's Avatar
73 ford guy
Postmaster
Joined: Oct 2005
Posts: 3,083
Likes: 4
From: Victoria , BC
Straight off pirate. 18 and 16 are right.
These are the fittings , but like I say eliminate the O ring and drop in ferrules so you use the inverted flare style so there's no over torquing and wrecking O ring. Any hydraulic shop will carry it.

 
Reply
Old Feb 19, 2014 | 09:54 PM
  #4  
thekingofcows's Avatar
thekingofcows
Thread Starter
|
Elder User
Joined: Oct 2009
Posts: 871
Likes: 1
From: New Albany, MS
Cool thanks.

Do the ferrules just replace the o rings or do I need fittings to match?
 
Reply
Old Feb 19, 2014 | 10:10 PM
  #5  
73 ford guy's Avatar
73 ford guy
Postmaster
Joined: Oct 2005
Posts: 3,083
Likes: 4
From: Victoria , BC
Originally Posted by thekingofcows
Cool thanks.

Do the ferrules just replace the o rings or do I need fittings to match?
You still buy conversion fittings like above to adapt to -6 AN, BUT the end of fitting that goes in the unit is a flare that mates to the ferrule that was dropped into the holes.
Ferrules look like this



Bring it all down to a hydraulic shop. When u get hoses made get -6 AN ,swivel ends, 90 degree style
 
Reply
Old Feb 19, 2014 | 10:21 PM
  #6  
73 ford guy's Avatar
73 ford guy
Postmaster
Joined: Oct 2005
Posts: 3,083
Likes: 4
From: Victoria , BC
Here's my setup

 
Reply
Old Feb 19, 2014 | 10:28 PM
  #7  
73 ford guy's Avatar
73 ford guy
Postmaster
Joined: Oct 2005
Posts: 3,083
Likes: 4
From: Victoria , BC
Last tip for mounting is instead of a nitemare to drill /bolt through firewall I made a simple 1/2" plate that I tapped 4 holes and welded to firewall so I could bolt up unit from under hood. Tried the awkward laying under dash thing and even still bolts came into interference with steering column webbing/gussets until I decided to weld this plate on engine bay side of firewall.
Run bolts just the right length or pre drill firewall to extend through plate and firewall. So easy to install/remove now



I had all these pics saved
 
Reply
Old Feb 20, 2014 | 09:24 PM
  #8  
thekingofcows's Avatar
thekingofcows
Thread Starter
|
Elder User
Joined: Oct 2009
Posts: 871
Likes: 1
From: New Albany, MS
Yea that's what I planned on doing, thanks for the suggestions.
 
Reply
FTE Stories

Ford Trucks for Ford Truck Enthusiasts

story-0

Ford's 2001 Explorer Sportsman Concept Looks For a New Home

 Verdad Gallardo
story-1

10 Best Ford Truck Engines We Miss the Most!

 Joe Kucinski
story-2

2026 Shelby F-150 Off-Road: Better Than a Raptor R?

 Brett Foote
story-3

2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

 Michael S. Palmer
story-4

10 Most Surprising 2026 Ford Truck Features!

 Joe Kucinski
story-5

Top 10 Ford Trucks Coming to Mecum Indy 2026

 Brett Foote
story-6

5 Best / 5 Worst Ford Truck Wheels of All Time

 Joe Kucinski
story-7

Ford Super Duty: 5 Things Owners LOVE, 5 Things They LOATHE!

 Joe Kucinski
story-8

Every 2026 Ford Truck Engine RANKED from WORST to FIRST!

 Michael S. Palmer
story-9

The Best F-150 Deal of Every Trim Level (XL through Raptor)

 Joe Kucinski
Old Mar 12, 2014 | 10:42 PM
  #9  
thekingofcows's Avatar
thekingofcows
Thread Starter
|
Elder User
Joined: Oct 2009
Posts: 871
Likes: 1
From: New Albany, MS
Ok, I have my Hb return line plumbed into a t before my power steering cooler. I'm experiencing an issue with brake pedal drag once I start the truck. When I crank the truck the pedal sinks about an inch loading up the brakes. I've done a little research and this seems to be due to the return t being before the cooler. So if you have a steering pump without two return ports, does the return t need to be right at the pump? Or am just gonna have to upgrade to a two return port pump?
 
Reply
Old Mar 12, 2014 | 10:51 PM
  #10  
73 ford guy's Avatar
73 ford guy
Postmaster
Joined: Oct 2005
Posts: 3,083
Likes: 4
From: Victoria , BC
Most likely u need to bleed the system. Your gonna wanna put your front axle on stands. Here's how I recall doing it.
Pump brakes about 5 times and cycle steering lock to lock with engine off for a few minutes.
Start engine and again run steering lock to lock and pump brakes a few times during. Shut it off and look at power steering fluid. Look for foaminess and bubbles. You need to get rid of all of them. It may need time to settle overnite and repeat the next day. That's how I got it.
Is the pump whining?
I have a T in my system, no hydro boost resevoir twin ports.
 
Reply
Old Mar 12, 2014 | 11:04 PM
  #11  
thekingofcows's Avatar
thekingofcows
Thread Starter
|
Elder User
Joined: Oct 2009
Posts: 871
Likes: 1
From: New Albany, MS
I bled on it over the course of two days, there is no whine. I read where someone having a similar problem. I have my t before the cooler, I think I need to t at the back of the pump. The steering gear puts out a higher pressure for the return than the hydro boost, this "back pressure" causes the hydroboost pedal to drop a little when I start the engine.
 
Reply
Old Mar 12, 2014 | 11:06 PM
  #12  
73 ford guy's Avatar
73 ford guy
Postmaster
Joined: Oct 2005
Posts: 3,083
Likes: 4
From: Victoria , BC
What's the hydroboost out of?
 
Reply
Old Mar 12, 2014 | 11:22 PM
  #13  
thekingofcows's Avatar
thekingofcows
Thread Starter
|
Elder User
Joined: Oct 2009
Posts: 871
Likes: 1
From: New Albany, MS
2005 ish f250
 
Reply
Old Mar 12, 2014 | 11:32 PM
  #14  
73 ford guy's Avatar
73 ford guy
Postmaster
Joined: Oct 2005
Posts: 3,083
Likes: 4
From: Victoria , BC
U know looking back at my own pic looks like I did swap out to a hydroboost style 2 port resevoir.
I had it working fine with a T though. I just got the pump from a wrecker in near new shape if I recall so I swapped it.
I run a trans cooler as well but I think it goes from the steering box to the hydro boost.
 
Reply
Old Mar 13, 2014 | 11:06 PM
  #15  
thekingofcows's Avatar
thekingofcows
Thread Starter
|
Elder User
Joined: Oct 2009
Posts: 871
Likes: 1
From: New Albany, MS
I moved the return t to directly behind the pump and that fixed the problem. Works beautifully now.
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Jo7.3
1999 - 2003 7.3L Power Stroke Diesel
9
Apr 7, 2019 01:18 PM
Jay David
2009 - 2014 F150
1
Feb 21, 2018 05:29 AM
megawatt00
1999 - 2003 7.3L Power Stroke Diesel
14
Jan 25, 2009 10:04 PM
texas_vet
1999 - 2003 7.3L Power Stroke Diesel
4
Sep 12, 2005 10:07 PM
Rez
Lightning, Harley-Davidson F-150, Roush F-150 & Saleen F-150
1
Nov 13, 2002 01:26 PM




All times are GMT -5. The time now is 12:01 PM.

story-0
Ford's 2001 Explorer Sportsman Concept Looks For a New Home

Slideshow: Ford's bizarre fishing-themed Explorer concept has resurfaced after spending decades largely forgotten.

By Verdad Gallardo | 2026-05-12 18:07:46


VIEW MORE
story-1
10 Best Ford Truck Engines We Miss the Most!

Slideshow: The 10 best Ford truck engines we miss the most.

By Joe Kucinski | 2026-05-12 13:09:47


VIEW MORE
story-2
2026 Shelby F-150 Off-Road: Better Than a Raptor R?

Slideshow: first look at the 810 hp 2026 Shelby F-150 Off-Road!

By Brett Foote | 2026-05-12 12:50:07


VIEW MORE
story-3
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

Slideshow: Everything You Need to Know about the 2027 Super Duty Carhartt Package!

By Michael S. Palmer | 2026-05-07 17:51:06


VIEW MORE
story-4
10 Most Surprising 2026 Ford Truck Features!

Slideshow: 10 most surprising Ford truck options/features in 2026.

By Joe Kucinski | 2026-05-05 11:17:22


VIEW MORE
story-5
Top 10 Ford Trucks Coming to Mecum Indy 2026

Slideshow: Here are the top 10 Fords coming to Mecum Indy 2026.

By Brett Foote | 2026-05-04 13:49:49


VIEW MORE
story-6
5 Best / 5 Worst Ford Truck Wheels of All Time

Slideshow: The 5 best and 5 worst Ford truck wheels of all time

By Joe Kucinski | 2026-04-29 16:49:01


VIEW MORE
story-7
Ford Super Duty: 5 Things Owners LOVE, 5 Things They LOATHE!

Slideshow: Ranking the 5 things owners love about their Super Duty and 5 things they don't

By Joe Kucinski | 2026-04-29 16:36:49


VIEW MORE
story-8
Every 2026 Ford Truck Engine RANKED from WORST to FIRST!

Slideshow: Ranking all 12 Ford truck engines available in 2026.

By Michael S. Palmer | 2026-04-22 13:32:20


VIEW MORE
story-9
The Best F-150 Deal of Every Trim Level (XL through Raptor)

Slideshow: The best Ford F-150 deal for every trim level (XL through Raptor)

By Joe Kucinski | 2026-04-21 15:59:01


VIEW MORE