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Power steering leak
#1
After a drive recently, I noticed some smoke coming from the drivers side of the engine. I checked around to see if I would notice anything and tightened valve covers in case it was oil. Didnt really see any wetness on the manifold, power steering fluid is correct level, master cylinder is proper level.

I did notice some wetness on the part below that is part of the power steering especially in the one corner. What is it actually?? Does it get fluid from the power steering pump and if so, wouldnt I see that level go down? Is the gasket on top leaking? Would that be the cause of the smoking?

Not really familiar with power steering so hopefully it is an easy fix.

   

Thanks!
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#2
I'm not sure exactly what you mean. Can you edit your pic to include an arrow to show where the issue is?
PS boxes can and do leak from fittings, input seal, cap "O" ring and sector shaft seals. If it recently started to leak the pump level might not yet show it's lower then normal.
There are several of us on here who have rebuilt or modified PS boxes, but we need more details. Smoke I would think means oil is getting on the exhaust manifold.
Geoff.

I learn something new every day!
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#3
That's the top of the power steering gear box. Because of the pressure in the pressure hose a tiny hole can spray a fine mist all over. The exhaust manifold and pipe are right there, so there's a good chance you have a power steering leak. I would look around that area with a good light when the engine is running to see if you see anything. It helps to have someone turn the steering wheel back and forth a little to pressurize everything. Be careful of moving/rotating parts.



“If you can't explain it simply, you don't understand it well enough.”
--Albert Einstein
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#4
(09-11-2019, 07:56 PM)Don C Wrote: That's the top of the power steering gear box. Because of the pressure in the pressure hose a tiny hole can spray a fine mist all over. The exhaust manifold and pipe are right there, so there's a good chance you have a power steering leak.  I would look around that area with a good light when the engine is running to see if you see anything. It helps to have someone turn the steering wheel back and forth a little to pressurize everything. Be careful of moving/rotating parts.
 Good point Don.

I learn something new every day!
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#5
So it may be the pressure hose as opposed to the gasket on the power steering pump itself? Are the hoses fairly straightforward to replace or is there some technique to remove them?
The fact that it is smoking off the manifold almost sounds like there is a spray involved. Also, how good is Lucas Stop-leak as a quick fix?

Thanks!
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#6
(09-12-2019, 07:44 AM)SteveO_71 Wrote: So it may be the pressure hose as opposed to the gasket on the power steering pump itself? Are the hoses fairly straightforward to replace or is there some technique to remove them?
The fact that it is smoking off the manifold almost sounds like there is a spray involved. Also, how good is Lucas Stop-leak as a quick fix?

Thanks!
 PS hoses are quite easy to replace, but can be a pita without the right tools. There's not much room down there to swing a wrench, so I have found a set of "crow foot" 3/8" drive, with a long extension work quite well. If I remember, the sizes are 11/16" and 5/8". It's important to get the high pressure inlet hose tight at the box. Goes without saying of course. First before you remove any lines, make sure you clean the fittings of dirt and loose crap, you don't want any of that getting inside the valve body. Once you have replaced the line(s) you could remove the PS pump belt so you can turn the pump by hand to prime the new HP line. Then replace the belt an tension it. DON"T do what dumbass here did and use a pry bar under the pump case to add tension, you'll dent it for sure and could cause a leak on the pump reservoir. If you don't want to do that, you probably have not lost much fluid so there will be enough to start the motor, have someone turn the s/wheel LTL a few times, then top it off with FORD type "F" (trans fluid). Recheck when hot, you should be good to go.
Stop leak is NOT a good idea.
Hope that helps, 
Geoff.
PS, when tightening the lines at the box, you'll need to hold the fitting so it won't turn as you tighten. While at it replace both HP and return.

I learn something new every day!
[+] 1 user Likes Stanglover's post
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#7
Thanks for the advice, guys!
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#8
Since I didnt see any obvious spray leaks, yesterday I tried a quick test. I wrapped the lower portion of the high pressure hose with some duct tape. Not as a fix but more that if there was a pinhole leak that the tape would obstruct the spray enough to indicate a leak was present.

After running the car, I didnt notice any smoke coming from the manifold but the steering gear box still had oil on it. Also, the tape that was originally dry had oil on it. So, something is leaking in that area.

Needless to say, new hoses are on order. The steering gear box is probably still OK.

As mentioned, a crowfoot wrench would work in that area and they do make ratcheting ones which would probably be needed due to such a small space.

Thanks for the tips!
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#9
It is a pain to get at. I just took an old cheap wrench and heated it up in the vice to bend it. (I can sometimes be a little cheap but also didn't want to run to the store). Make sure everything is clean prior to disassembly as you don't want any crud getting into the system. Also be sure to inspect the threads and inside the casting for any nicks or gouges as this will make the new ones leak just as the current one is. Hope this helps.

73 Grandé H Code. Headman long tube headers, T-5 Transmission, 3.70 Traclok, Lowered 1" all around, Aussie 2v heads w/ 2.19 intake, 1.71 exhaust, screw in studs, full roller cam 608/612 lift 280/281 duration LSA 112, Quick Fuel 750 CFM double pumper, AirGap intake.

- Jason


[Image: 082-hot-rod-power-tour-2017-1970-1970s.jpg]
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#10
You can get Crowfoot wrenches that fit on a socket wrench. Then you can use a long extension to get to places like this. There are also flare nut Crowfoot socket wrenches available.
https://www.harborfreight.com/7-piece-3-...94426.html
https://www.harborfreight.com/7-piece-sa...93137.html



“If you can't explain it simply, you don't understand it well enough.”
--Albert Einstein
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