there ya go...logging road dust for vanagonauts who can get to logging
roads,
baby powder for the rest of us pesants................. for fluid leak
location testing.

scott
----- Original Message -----
From: "Shawn Wright" <vwdiesels@GMAIL.COM>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Wednesday, July 21, 2010 8:57 PM
Subject: Re: Pressure test cooling system howto?

> Scott,
>
> Thanks for the info on the cap. I'll probably just replace the suspect
> hose
> first and see how it goes. As for baby powder, just driving on the logging
> roads should offer a similar coating of powder - no rain for quite a while
> around here! :-)
>
> On Wed, Jul 21, 2010 at 8:25 PM, Scott Daniel - Turbovans <
> scottdaniel@turbovans.com> wrote:
>
>> re the question about can you pressurize through the vanagon 2.1 wbxer
>> coolant bottle pressure cap ..
>> yes you can ..
>> it's a one way valve going in with no pressure,
>> and only allows outflow at 13 to 15 psi or so .
>>
>> so sure you could pressurize through that cap if you wanted.
>> those caps are a little shakey anyway , sometimes. .
>> you should always have a spare around.
>>
>> here's a very fancy high tech leak finding 'system' ...
>> baby powder.
>> you spray baby powder or foot powder on the engine ..
>> and fluid leaks show up very easily.
>>
>> sometimes you just have to take the flange off ...examine it very
>> carefully
>> ...
>> I even find cracks sometimes...
>> then put hose back on solidly etc.
>> 'sometimes' when I want something between the hose and what it goes on to
>> prevent corrosion ..
>> I'll apply permatex high tack gasket sealer ..
>> helps prevent corrosion of the aluminum ...doesn't stick things together,
>> come apart later ..
>>
>> it's largely about treating, dealing with, and preventing corrosion.
>> Fully
>> half of my vanagon work invovles that, LOTS of that.
>>
>> scott
>> www.turbovans.com
>>
>> ----- Original Message -----
>> From: "Alan Felder" <dieseldoofus@GMAIL.COM>
>> To: <vanagon@GERRY.VANAGON.COM>
>> Sent: Wednesday, July 21, 2010 7:33 PM
>> Subject: Re: Pressure test cooling system howto?
>>
>>
>>  Shawn - go to a FLAPS and buy a Gates 19663 hose to replace that
>> section.
>>> The Gates hose is about 3 feet long so you can choose where to splice it
>>> into your heater feed hose, where its easy to observe and maintain the
>>> splice.
>>>
>>> I had the same thing on a trip last december.  I don't think you can
>>> recreate the leak under static pressure, this requires pressure and
>>> water
>>> pump flow at full throttle.  Mine blew coolant everywhere at speed but
>>> as
>>> fast as you could stop and check the hose, not a drop. Mine kept this up
>>> for
>>> a thousand miles on that trip till I figured it out.
>>>
>>> On Wed, Jul 21, 2010 at 5:25 PM, Shawn Wright <vwdiesels@gmail.com>
>>> wrote:
>>>
>>>  I have an elusive coolant leak in my 1.6TD which only appears under
>>> very
>>>> hot
>>>> conditions which I cannot reproduce on this little island... (none of
>>>> the
>>>> hills are long enough!)
>>>>
>>>> --
>>>> Alan Felder
>>>> Austin TX
>>>> 82 Diesel Westy
>>>>
>>>>
>
>
> --
> Shawn Wright