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Old 03 Mar 2004, 12:40 am
y_p_w
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Default Power Steering Fluid Change - Observations

OK - I did it myself in my '95 Integra GS-R. The last time
I had it done was by my regular mechanic at 30K miles - it's
up to 131K miles. I asked them to do it again at 60K miles,
but a different mechanic said they don't particularly like to
do it because of the mess. I know there's no recommended
interval for doing it.

Originally I was just going to use a turkey baster to get the
fluid out of the reservoir, and repeat about 2 or 3 times. I
did this once - then I thought it might be a better idea to do
a full flush. The fluid was a dark brown compared to the light
amber of the new fluid.

I had several bottles of unopened Honda PSF I've bought over
the years. The oldest was in a white bottle labelled PSF-V
(maybe 6 years old). I had a silver bottle (bought in '99?)
and one I bought today. The newer stuff in the silver bottle
has a less acrid smell and was a bit lighter in color. I'm
assuming there should be no issues of compatibility.

I followed the instructions in my factory service manual (more
or less). I drained the reservoir with the baster, because I
thought it might leak out when I disconnected the return hose.
I raised the reservoir, undid the clamp, removed the hose, and
it didn't leak much. The inlet is routed through some sort of
labyrinth, and gravity drains the fluid from the reserve hose
when the engine is shut off. I found that a plastic funnel
extension fit perfectly in the return hose, and I routed it to
an empty motor oil bottle. It might have been a good idea to
seal off the bottle opening with duct tape to keep the fluid
from shooting out of the bottle. The funny thing is the service
manual shows a drawing of an open wide jar as the container,
which seems like a recipie for a big mess.

I ran the engine, and heard the most hellacious grinding noise.
I turned the steering wheel a few times lock-to-lock, and it
groaned even louder. It became really difficult to turn the
wheel. I heard quick shots of fluid out of the tube when I
turned the wheel right or left. I was thinking this can't be
good for the power steering pump, but I did it by the book.

After reattaching the return hose and filling the reservoir to
the top, I turned the ignition, ran a fast idle, and turned
it lock-to-lock a few times, and turned it off. The noise
was about as bad as when the fluid was being expelled, but
got better with subsequent tries. I repeated it a couple of
times until the air was bled out, and the fluid level was
stable at the top line.

Overall, it was fairly easy to do, and cost about $8 in power
steering fluid. My power steering system is in good shape,
but I wish I had done this sooner. The best part is that I
can just dump the used fluid in the oil tank at my city's
recycling center (PSF is just a petroleum oil base anyways).

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  #2 (permalink)  
Old 04 Mar 2004, 10:57 am
Samuel
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Default Re: Power Steering Fluid Change - Observations

Interesting, I am about to do the same but I wasn't sure on what to expect.
You mention that you turned the steering wheel a few times lock-to-lock,
maybe that's why you heard those noises. The manual says do not turn the
steering wheel all the way.
How many bottles did you use total? Also, did you have to raise the vehicle
to turn the wheels or you did it in the ground?
Thanks


"y_p_w" <y_p_w@hotmail.com> wrote in message
news:n5f1c.16869$yZ1.13175@newsread2.news.pas.eart hlink.net...
> OK - I did it myself in my '95 Integra GS-R. The last time
> I had it done was by my regular mechanic at 30K miles - it's
> up to 131K miles. I asked them to do it again at 60K miles,
> but a different mechanic said they don't particularly like to
> do it because of the mess. I know there's no recommended
> interval for doing it.
>
> Originally I was just going to use a turkey baster to get the
> fluid out of the reservoir, and repeat about 2 or 3 times. I
> did this once - then I thought it might be a better idea to do
> a full flush. The fluid was a dark brown compared to the light
> amber of the new fluid.
>
> I had several bottles of unopened Honda PSF I've bought over
> the years. The oldest was in a white bottle labelled PSF-V
> (maybe 6 years old). I had a silver bottle (bought in '99?)
> and one I bought today. The newer stuff in the silver bottle
> has a less acrid smell and was a bit lighter in color. I'm
> assuming there should be no issues of compatibility.
>
> I followed the instructions in my factory service manual (more
> or less). I drained the reservoir with the baster, because I
> thought it might leak out when I disconnected the return hose.
> I raised the reservoir, undid the clamp, removed the hose, and
> it didn't leak much. The inlet is routed through some sort of
> labyrinth, and gravity drains the fluid from the reserve hose
> when the engine is shut off. I found that a plastic funnel
> extension fit perfectly in the return hose, and I routed it to
> an empty motor oil bottle. It might have been a good idea to
> seal off the bottle opening with duct tape to keep the fluid
> from shooting out of the bottle. The funny thing is the service
> manual shows a drawing of an open wide jar as the container,
> which seems like a recipie for a big mess.
>
> I ran the engine, and heard the most hellacious grinding noise.
> I turned the steering wheel a few times lock-to-lock, and it
> groaned even louder. It became really difficult to turn the
> wheel. I heard quick shots of fluid out of the tube when I
> turned the wheel right or left. I was thinking this can't be
> good for the power steering pump, but I did it by the book.
>
> After reattaching the return hose and filling the reservoir to
> the top, I turned the ignition, ran a fast idle, and turned
> it lock-to-lock a few times, and turned it off. The noise
> was about as bad as when the fluid was being expelled, but
> got better with subsequent tries. I repeated it a couple of
> times until the air was bled out, and the fluid level was
> stable at the top line.
>
> Overall, it was fairly easy to do, and cost about $8 in power
> steering fluid. My power steering system is in good shape,
> but I wish I had done this sooner. The best part is that I
> can just dump the used fluid in the oil tank at my city's
> recycling center (PSF is just a petroleum oil base anyways).
>



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  #3 (permalink)  
Old 04 Mar 2004, 06:17 pm
y_p_w
Guest
 
Posts: n/a
Default Re: Power Steering Fluid Change - Observations

"Samuel" <shill025@home.com> wrote in message news:<QdJ1c.34558$qo.8182@fe1.texas.rr.com>...
> Interesting, I am about to do the same but I wasn't sure on what to expect.
> You mention that you turned the steering wheel a few times lock-to-lock,
> maybe that's why you heard those noises. The manual says do not turn the
> steering wheel all the way.


Really? I've got the factory service manual, and it said lock to lock.
I suppose they don't recommend it for normal use, but it's the way to
get the pump to spit out the PSF. BTW - when I said it was a good idea
to tape the bottle, thre still probably needs to be a little space to
vent the air.

> How many bottles did you use total?


I'm not sure. I drained just the reservoir once. I think I just used
about 3 12 oz bottles with the resrvoir (3/4 bottle) alone plus the
flush. I might not have gotten the full amount out of there, but it
was close. The factory service manual says 1.01 quarts for the GS-R
(less than the other versions). I'd get 4 bottles to be on the safe
side. I'm thinking of doing it again, since it was over 100K miles.

> Also, did you have to raise the vehicle
> to turn the wheels or you did it in the ground?


I did it on the ground with the shifter in neutral and the parking brake
on. On second thought, I probably should have put newspapers under the
tires to prevent marks. The front tires are ready to be replaced anyways,
so I don't care about wearing them out.

It's not very messy as long as you have something that fits snug in
the return hose. The funnel extension I have is tapered at the end,
so it worked really well. Once the reservoir is raised, it might
be a good idea to put a rag or paper towel underneath for the drips.
Also - be careful to keep stuff away from the belts.
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