Thanks for all the responces. I did think the ring that came out looked to
squared off to have started out round. Since I work as an aircraft mechanic
I found an o-ring that fit and appeared to have the right compression,
MS28775-117. I'll see if it holds long term.

Ray

On Fri, Apr 1, 2011 at 10:22 PM, jeff ensing <jeffensing@gmail.com> wrote:

> The spirals noodles have been in VW heater core's forever. I think they are
> designed to "mix" the hot coolant against the core tubing which is acting as
> a heat sink. I have seen these things disintegrate and clog the core as well
> as fill the bottom of, and reduce flow in radiators.
>
> Jeff
>
>
> On Fri, Apr 1, 2011 at 3:20 PM, Ray Brubaker <rayandmerle@gmail.com>wrote:
>
>> Hi,
>>
>> I had a leak at the rear heater that turned out to be the o-ring where the
>> control valve is bolted to the core flange. When I opened it up I found
>> pieces of white plastic caught in the control valve that look like twisted
>> flat noodle about 3/16" wide. Where could this have come from? Is it of
>> any
>> concern? The pieces are very brittle so I don't think it would hurt the
>> pump
>> if it got that far. This van has an ALH TDI diesel engine.
>>
>> Thanks for any advice, a great list,
>>
>> Ray
>>
>
>
>
> --
> Jeff Ensing
> Ensing Remodeling
> 3327 Hidden Acres Drive
> Atlanta, Ga. 30340
> 678-549-8430
>