Power Steering Banjo

Discuss topics related to the CA18DE and CA18DET series engines.
RustyAE86
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Power Steering Banjo

Postby RustyAE86 » Mon Jun 04, 2018 3:00 pm

I'm converting my car to run -6 AN power steering. While talkgin to a friend, he was telling me KA and SR pumps use the Banjo fitting as a power steering flow restrictor.

Since I don't feel like replacing a hard to find pump or a hard to find steering rack on the reg, I'd like to know how the CA pump falls inline with it's successors.

I was just gonna buy an 6AN banjo and place it on the pump but after reading and looking at the 240sx DIY post about converting to AN lines it sparked a question. What's the correct way to do this?

I saw on the 240sx DIY write up that they somehow fit a 6an male fitting to the swivel piece that the banjo bolt goes through. I've circled ir on the attached image (forgive me if the picture doesn't show up, at work on junk Internet Explorer). How in the hell do I separate this? Or do I? :confused:

Image


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float_6969
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Re: Power Steering Banjo

Postby float_6969 » Fri Jun 08, 2018 5:00 am

I'd be surprised if there isn't a ready-made adapter out there to go from banjo to AN, but if there's not, then your local speed/hydralic shop can probably take the banjo fitting you have, cut the crimp off of it, and braze an AN fitting onto it.

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Rogue One
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Re: Power Steering Banjo

Postby Rogue One » Fri Jun 08, 2018 7:05 am

There's a couple of threads here on NICO similar to this. I think this discussion might be the most helpful: power-steering-banjo-bolt-t511336.html

RustyAE86
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Re: Power Steering Banjo

Postby RustyAE86 » Fri Jun 08, 2018 10:53 am

float_6969 wrote:
Fri Jun 08, 2018 5:00 am
I'd be surprised if there isn't a ready-made adapter out there to go from banjo to AN, but if there's not, then your local speed/hydralic shop can probably take the banjo fitting you have, cut the crimp off of it, and braze an AN fitting onto it.

Do you think that placings a 6an power steering specific banjo would be okay? I know I can get one from work > https://www.jegs.com/i/Unisteer/668/8021570/10002/-1
if you think that would suffice, that would work for me because tahts the route I was planning on

That's interesting about cutting the crimp alternative. I'll have to see if anyone could do that.


Rogue One wrote:
Fri Jun 08, 2018 7:05 am
There's a couple of threads here on NICO similar to this. I think this discussion might be the most helpful: power-steering-banjo-bolt-t511336.html
Thanks Rogue! I'll check that out!

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float_6969
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Re: Power Steering Banjo

Postby float_6969 » Fri Jun 08, 2018 11:12 am

That's exactly the fitting I was thinking of.

RustyAE86
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Re: Power Steering Banjo

Postby RustyAE86 » Fri Jun 08, 2018 7:40 pm

float_6969 wrote:
Fri Jun 08, 2018 11:12 am
That's exactly the fitting I was thinking of.

Okay cool. Don't think I'd have any restriction issues? I'll inspect the OE setup just to make sure diameters are way different internally

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float_6969
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Re: Power Steering Banjo

Postby float_6969 » Sat Jun 09, 2018 5:24 am

Exactly, just check the diameters. Maybe go to a -8 if you're worried about flow being an issue.

RustyAE86
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Re: Power Steering Banjo

Postby RustyAE86 » Mon Jun 11, 2018 9:30 am

So I was doing more digging over the weekend and stumbled across a forum with this information I figured I'd pass along ot anyone who may stumble across this thread

49110-35F00 - S13 CA18DET Pump (haven't checked availability)

"The power steering pressure for S13 CA18det is 995psi" - silly80
^ Which seems to be about 300-400 psi lower than an SR pump, I did also confirm pressure restriction comes from the Banjo fitting.


I have not confirmed whether that Unisteer part will knock the pressure down compared to where it needs to be and I haven't pulled mine apart yet, but I'll try to do that this upcoming weekend

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Re: Power Steering Banjo

Postby RustyAE86 » Mon Jun 11, 2018 9:50 am

float_6969 wrote:
Fri Jun 08, 2018 11:12 am


Exactly, just check the diameters. Maybe go to a -8 if you're worried about flow being an issue.
Do you think that'd be enough Inside dia to let the pressure down a bit? I missed this comment earlier

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float_6969
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Re: Power Steering Banjo

Postby float_6969 » Thu Jun 14, 2018 6:00 am

IIRC, the flow restriction is in the banjo bolt itself, not the line. So as long as you reuse the bolt, any line should work just fine. I had an entirely new line made, NOT SS or AN and it works just fine.

RustyAE86
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Re: Power Steering Banjo

Postby RustyAE86 » Fri Jun 15, 2018 12:14 pm

float_6969 wrote:
Thu Jun 14, 2018 6:00 am
IIRC, the flow restriction is in the banjo bolt itself, not the line. So as long as you reuse the bolt, any line should work just fine. I had an entirely new line made, NOT SS or AN and it works just fine.
Really? That's good news! The CA equipped S13's and my AE86 Rack actually require almost the same pressure. I remember an old thread where you said you were gonna swap to EPS so I didn't think you retained the hydraulic system.Do you happen to remember the bolt diameter? I still haven't gotten mine out. I've been to preoccupied with summer activities and working on wiring and finishing my fuel system.

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float_6969
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Re: Power Steering Banjo

Postby float_6969 » Sun Jun 17, 2018 6:03 am

No idea on bolt diameter. The EHPS system worked well, but the motor had a bearing fail and I abandoned it and went back to an engine driven system. I have an electric steering column I had made that I need to install though.


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