Date:         Tue, 24 Apr 2001 16:05:55 -0400
Reply-To:     David Beierl <dbeierl@attglobal.net>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         David Beierl <dbeierl@attglobal.net>
Subject:      Re: Specs of hoses? pressure and temperature
Comments: To: dmc@cyburban.com
In-Reply-To:  <200104241849.f3OIn2W23922@mail.lanline.com>
Content-Type: text/plain; charset="us-ascii"; format=flowed

At 10:39 AM 4/24/2001, Dave M wrote:
>Does anyone know the specs required for the Vanagon coolant and fuel
>hoses? That is max pressure in psi and max temperature?

Fuel system working pressure is a bit under 40 psi between the pump and the
fuel regulator; max pressure if the fuel regulator got stuck might be up
around 100 psi???  It's metric sized, I believe 7mm ID for most of
it.  This is higher pressure than most American/Japanese FI systems use, I
believe.  If it's not specifically rated for gasoline fuel injection
systems I wouldn't touch it with a barge pole no matter what the published
specs.

Coolant working pressure is under 15psi, max pressure if the cap somehow
got welded shut could potentially be until something popped...at any rate,
this is standard automotive-service hose, nothing weird about it.  If they
call it automotive heater hose it should be correct material/construction
-- not necessarily dimension.

Temps -- again, automotive service.  Boiling point at 15 psi is something
around 250 F I believe.

david

>I have found a manufacturer of hoses (Parker) that would be a less
>expensive source than VW,  but I need to know the specs to determine which
>type of hose is suitable.
>
>Incidentally one of the VW hoses that I recently bought was marked "Avon,
>England", so everything that goes into a VW is not German.

David Beierl - Providence, RI
  http://pws.prserv.net/synergy/Vanagon/
'84 Westy "Dutiful Passage"
'85 GL "Poor Relation"