Date: Tue, 12 Jun 2001 09:28:46 -0700
Reply-To: Jere & Beth Hawn <jbrschawn@EARTHLINK.NET>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Jere & Beth Hawn <jbrschawn@EARTHLINK.NET>
Subject: Re: Plastic cooling pipes damaged...
In-Reply-To: <3B2441AD.3BAA8DFD@gene.com>
Content-Type: text/plain; charset="Windows-1252"
Dan,
I have/had the same problem however I've jury-rigged it and it has been leak
free for about 4 years. Here is what I did: (2 cents worth)
Bought a hose from the local auto part store. I don't know what make of car
it was for I just told the guy that I needed hose that had a straight
section that was at least 1 1/4 inches by 18 inches ( used my existing hose
for him to match up to). Back home with hose.
I cut a large straight piece out of the new hose (enough to slide up the
pipe by about 8-12 inches) installed with hose clamp -- it blew out after
short while due to pressure and how slick the plastic pipe is.
Second attempt:
I took 400 grit wet/dry sand paper; coated smooth side with rubber cement,
let dry; fold in half so now have sand paper (two sides sandy: used for
grip) cut a piece about 3 inches wide by about 6 inches long enough to wrap
around plastic pipe. Then I fitted it between the pipe and hose and used 2
hose clamps over the area where the sand paper was. About a year later I
had to tighten one of the hose clamps due to a small drip. That's it
Good luck
Jere
90 GL
88 GL
-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
Daniel Schmitz
Sent: Sunday, June 10, 2001 8:58 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Plastic cooling pipes damaged...
Hello list.
This relates to my '87 camper. Today when I removed my old radiator to
replace it, I noticed that on one of the plastic coolant pipes that run
from front to back, the plastic ridge that secures the hose had broken
away from the pipe and had moved with the metal reinforcement sleeve out
of the end about 3/4". This is identical to what has happened at the
other end of this pipe. It looks like someone had added a second hose
clamp to address a possible leak here. Apparently, the plastic becomes
brittle and fails at the ends due to the metal sleeve constantly heating
(an assumption).
Has anyone with similar damage been successful at leaving these plastic
pipes "as is" and operating without problems? The van has been running
with this damage for sometime, so I'm not sure it's a life or death
problem.
And, if I attempt to fix it myself, can I use CPVC pipe from the
hardware store for this, or is there a "preferred" plastic I should look
for? I understand CPVC is rated for 100psi @ 180 degrees, which I should
think exceeds the requirements of the vanagon's cooling system.
I realize the "correct" solution is to replace this pipe, either with a
new one from VW (pricey) or with a fabricated one made from plastic
pipe. Alternatively, I can probably fabricate new "ends" and attach them
to the main pipe with 1-1/4" straight hose. However, I have an upcoming
camping event (courtesy of Phaedra) at which I would like to use my van,
so I'd like to let this go until I can work out a permanent fix.
Any advice is welcome. Thanks in advance!
Dan
'87 Westfalia
(will again be on the road after radiator, CV boots, new calipers and
wheel cylinders, or I will be sleeping in a tent!)