Hydroboost, Saginaw questions
#16
03-15-2017, 07:37 PM
When I did it on mine, I followed *none* of the suggestions:
1. Used stock PS pump with 1 return line. I installed a tee, and a generic PS filter.
2. Used Hydroboost off '03 F-450 unit
3. Used stock pedal, modified rod to work
4. Used stock MC(though it needed an adapter/shim to fit)
I never had it fail on me, and it worked just fine. I did have slight 'lack of flow' issues when cranking the wheel hard and braking at the same time at low idle(making the wheel stiff), but it was more a momentary annoyance than anything.
If you do this swap, I would also:
1. Install an electronic cruise module. You can actually use one off a more modern(mine was off a '98) Ford truck. These modules have *all* the circuitry in them, so you can basically remove the servo actuator and the controller under the dash. You need about 6 or 7 wires to run it; there's a topic out there I made detailing the process.
2. Electric vacuum pump. If you have an electronic cruise, you can use one off a 99+ Ford diesel, these are really tiny pumps. You delete the main vacuum reservoir(don't need all that volume), and it'll do just fine.
It can't really handle the cruise supply, though, especially if it leaks a little when *not* operating as all the modules I could lay my hands on did.
A bigger pump would solve that... but why not just use an electronic cruise?
1. Used stock PS pump with 1 return line. I installed a tee, and a generic PS filter.
2. Used Hydroboost off '03 F-450 unit
3. Used stock pedal, modified rod to work
4. Used stock MC(though it needed an adapter/shim to fit)
I never had it fail on me, and it worked just fine. I did have slight 'lack of flow' issues when cranking the wheel hard and braking at the same time at low idle(making the wheel stiff), but it was more a momentary annoyance than anything.
If you do this swap, I would also:
1. Install an electronic cruise module. You can actually use one off a more modern(mine was off a '98) Ford truck. These modules have *all* the circuitry in them, so you can basically remove the servo actuator and the controller under the dash. You need about 6 or 7 wires to run it; there's a topic out there I made detailing the process.
2. Electric vacuum pump. If you have an electronic cruise, you can use one off a 99+ Ford diesel, these are really tiny pumps. You delete the main vacuum reservoir(don't need all that volume), and it'll do just fine.
It can't really handle the cruise supply, though, especially if it leaks a little when *not* operating as all the modules I could lay my hands on did.
A bigger pump would solve that... but why not just use an electronic cruise?
#17
03-16-2017, 04:28 PM
I did this to my '88. Used a pump and bracket that came off a 79 lincoln I think? I had to shave a little bit off the bracket to get it to fit the IDI engine, basically just sanded a bit off the long part the bolt went through.
That all bolted up fine, and the belt ran fine from what I can remember.
The hose was interesting though... When I originally installed the saginaw (before the hydroboost mod) I think I used the hose from a van, and maybe had to bend the hard section a bit to make it work. When I added the hydroboost, I had to get a little creative as the saginaw pump was like a flared connection I think, and the ford pump has that fancy o-ring thing. I think what I did was use a stock f-450 hose that worked with the hydroboost, and cut the end off to add the right connection for the saginaw pump.
The other difference is the angle the saginaw pump connects versus stock pump. I believe it connects in the back for supply, where as the ford pump connects on the side.
Its been a little while and all this is fuzzy. But I might be able to dig up some more info/parts numbers if needed.
Also, I modified the brake pedal as shown in another thread. Grind off the weld, push out the pin. Drill new hole like 3/4" closer to the pivot, press in pin. Weld pin in place and weld closed the old hole. That's the proper way to get the pedal to work right if you don't swap it for the hydroboost pedal.
That all bolted up fine, and the belt ran fine from what I can remember.
The hose was interesting though... When I originally installed the saginaw (before the hydroboost mod) I think I used the hose from a van, and maybe had to bend the hard section a bit to make it work. When I added the hydroboost, I had to get a little creative as the saginaw pump was like a flared connection I think, and the ford pump has that fancy o-ring thing. I think what I did was use a stock f-450 hose that worked with the hydroboost, and cut the end off to add the right connection for the saginaw pump.
The other difference is the angle the saginaw pump connects versus stock pump. I believe it connects in the back for supply, where as the ford pump connects on the side.
Its been a little while and all this is fuzzy. But I might be able to dig up some more info/parts numbers if needed.
Also, I modified the brake pedal as shown in another thread. Grind off the weld, push out the pin. Drill new hole like 3/4" closer to the pivot, press in pin. Weld pin in place and weld closed the old hole. That's the proper way to get the pedal to work right if you don't swap it for the hydroboost pedal.
#18
03-16-2017, 06:45 PM
I did this to my '88. Used a pump and bracket that came off a 79 lincoln I think? I had to shave a little bit off the bracket to get it to fit the IDI engine, basically just sanded a bit off the long part the bolt went through.
That all bolted up fine, and the belt ran fine from what I can remember.
The hose was interesting though... When I originally installed the saginaw (before the hydrooost mod) I think I used the hose from a van, and maybe had to bend the hard section a bit to make it work. When I added the hydroboost, I had to get a little creative as the saginaw pump was like a flared connection I think, and the ford pump has that fancy o-ring thing. I think what I did was use a stock f-450 hose that worked with the hydroboost, and cut the end off to add the right connection for the saginaw pump.
The other difference is the angle the saginaw pump connects versus stock pump. I believe it connects in the back for supply, where as the ford pump connects on the side.
Its been a little while and all this is fuzzy. But I might be able to dig up some more info/parts numbers if needed.
Also, I modified the brake pedal as shown in another thread. Grind off the weld, push out the pin. Drill new hole like 3/4" closer to the pivot, press in pin. Weld pin in place and weld closed the old hole. That's the proper way to get the pedal to work right if you don't swap it for the hydroboost pedal.
That all bolted up fine, and the belt ran fine from what I can remember.
The hose was interesting though... When I originally installed the saginaw (before the hydrooost mod) I think I used the hose from a van, and maybe had to bend the hard section a bit to make it work. When I added the hydroboost, I had to get a little creative as the saginaw pump was like a flared connection I think, and the ford pump has that fancy o-ring thing. I think what I did was use a stock f-450 hose that worked with the hydroboost, and cut the end off to add the right connection for the saginaw pump.
The other difference is the angle the saginaw pump connects versus stock pump. I believe it connects in the back for supply, where as the ford pump connects on the side.
Its been a little while and all this is fuzzy. But I might be able to dig up some more info/parts numbers if needed.
Also, I modified the brake pedal as shown in another thread. Grind off the weld, push out the pin. Drill new hole like 3/4" closer to the pivot, press in pin. Weld pin in place and weld closed the old hole. That's the proper way to get the pedal to work right if you don't swap it for the hydroboost pedal.
#19
03-16-2017, 11:32 PM
The hose was interesting though... When I originally installed the saginaw (before the hydroboost mod) I think I used the hose from a van, and maybe had to bend the hard section a bit to make it work. When I added the hydroboost, I had to get a little creative as the saginaw pump was like a flared connection I think, and the ford pump has that fancy o-ring thing. I think what I did was use a stock f-450 hose that worked with the hydroboost, and cut the end off to add the right connection for the saginaw pump.
The other difference is the angle the saginaw pump connects versus stock pump. I believe it connects in the back for supply, where as the ford pump connects on the side..
The other difference is the angle the saginaw pump connects versus stock pump. I believe it connects in the back for supply, where as the ford pump connects on the side..
#20
03-18-2017, 11:34 AM
For hoses... I ended up talking to the local auto parts store that makes hydraulic hoses. They could get compression-fitting ends which would go around any metal tubing pieces I had, so we could use them as adapters.
That worked just fine; eventually I ended up replacing my lines with hydraulic hoses with JIC ends and using adapters off Amazon to complete the circuit.
That worked just fine; eventually I ended up replacing my lines with hydraulic hoses with JIC ends and using adapters off Amazon to complete the circuit.
#21
03-18-2017, 07:31 PM
For hoses... I ended up talking to the local auto parts store that makes hydraulic hoses. They could get compression-fitting ends which would go around any metal tubing pieces I had, so we could use them as adapters.
That worked just fine; eventually I ended up replacing my lines with hydraulic hoses with JIC ends and using adapters off Amazon to complete the circuit.
That worked just fine; eventually I ended up replacing my lines with hydraulic hoses with JIC ends and using adapters off Amazon to complete the circuit.
#22
03-23-2017, 01:21 AM
Ok so I've hit a wall. The 1979 Lincoln continental power steering pump (w/ hydroboost) shaft where the pulley goes is 3/4" while the ID of the hole on the pulley is ~.668"... looks like I will have to drill the power steering pulley. Before I pull the trigger though has anyone else encountered this problem? It is quite a big difference believe it or not. Also if I do end up having to drill it should I opt for the 11/16" drill bit that nobody seems to have or should I go with the 3/4" (same as shaft)? I would assume the pulley would have to be slightly smaller since it needs to be pressed on..
#23
03-23-2017, 04:00 AM
#24
03-23-2017, 07:44 AM
#25
03-23-2017, 10:26 AM
#26
03-23-2017, 10:30 AM
#27
03-23-2017, 07:23 PM
#28
03-23-2017, 07:47 PM
#29
03-23-2017, 08:07 PM
#30
03-23-2017, 08:39 PM