Date: Sat, 1 May 2004 16:15:41 -0700
Reply-To: gary hradek <hradek@YAHOO.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: gary hradek <hradek@YAHOO.COM>
Subject: warning about the citric acid flush use only as last resort
In-Reply-To: <WorldClient-F200405011501.AA01340000@jiddware.com>
Content-Type: text/plain; charset=us-ascii
John and all,
I would only use the citric acid flush as
a last resort, just before you think you might replace
the radiator. It will clean out the stop leak that
may have been added and is restricting your flow. I
was ready to replace my radiator as it was clearly
plugged. There was a large lag between when the fan
kicked on and where the temperature gauge was reading.
This is no longer the case as I have increased flow
through the radiator. There is no evidence of leaks
since the flush. If stop leak was added to a
radiator to plug a radiator leak you will get leaks
after the flush. Be aware of this before you do such
a flush and do not flush the engine with this mix as
it is an acid. regards gary
It works well if your radiator i
--- "John D. Foster" <jidd@jiddware.com> wrote:
> Thanks Gary,
>
> Just FYI, one good/cheap vendor I've used:
>
>
http://www.bulkfoods.com/search_results.asp?txtsearchParamCat=ALL&txtsearchParamType=ALL&txtsearchParamMan=ALL&txtsearchParamVen=ALL&txtFromSearch=fromSearch&txtsearchParamTxt=4272
>
> About $2/lb
>
> -----Original Message-----
> From: gary hradek <hradek@YAHOO.COM>
> To: vanagon@GERRY.VANAGON.COM
> Date: Fri, 30 Apr 2004 11:40:43 -0700
> Subject: Re: [VANAGON] for the record water is not
> corrosive
>
> > JD and Zolo,
> > Citric acid seemed to be one of the main
> components of
> > the over the counter flushes for radiators.
> > I tested a citric acid monohydrate against the
> > aluminum foil for a week before trying it in the
> > radiator. The molecular weight of the monhydrate
> was
> > 200. 40 grams /liter or 160gram/gallon or
> 320gram
> > for two gallon(for the job) will yield a .2M
> liquid
> > with a pH somewhere between 1 and 2. I used 2
> > gallons because I was trying to do the big pipes
> as
> > well but would use caution if you still have the
> metal
> > pipes. You have to remove and replace the corks
> to
> > displace the water with the citrate solution so
> wear
> > some eye protection if you do this.
> > Citric acid is considered a weak organic acid.
> There
> > are several forms of it so check your molecular
> weight
> > to see that there is no major difference. If
> there
> > is a big difference you need to adjust the amount
> you
> > use and perhaps check the pH. If all else fails
> just
> > ballpark the amount and do the foil check.
> > As for a source I would consider a high school
> if
> > you are unable to find it at the harware store or
> > online. The cheaper the better.
> > gary
> > --- "John D. Foster" <jidd@jiddware.com> wrote:
> > > Hey Gary,
> > >
> > > Being several years out of my high school
> chemistry
> > > class, could you refresh
> > > me on how to achieve a 0.2M concentration? As
> > > chance would have it, I have
> > > several pounds of citric acid on hand as my wife
> is
> > > starting an
> > > aromatherapy/bath product business and its one
> of
> > > our raw materials.
> > >
> > > Thanks,
> > > JD Foster
> > >
> > >
> > > > A 0.2M citrus acid enemia is a good idea if
> you
> > > are
> > > > running a bit hot. Isolate the radiator at
> the
> > > big
> > > > pipes and flush with hot water. Soak the
> > > radiator
> > > > for a week with the enemia and flus with hot
> > > water.
> > >
> > >
> >
> >
> >
> >
> >
> > __________________________________
> > Do you Yahoo!?
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> >
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