The pipe doesn't seem to go to the thermostat housing, it looks like it
connects to the lower radiator hose. How is the o-ring held in, it looks like
the bolt that holds the pipe in place is the only clamp? I looked at an
exploded view on a honda parts site.

"TeGGeR®" wrote:

> nospam <nospam@nospam.com> wrote in news:44D13E0C.613AA12D@nospam.com:
>
> > I came home today after driving and had coolant in the driveway
> > originating from the left side front dripping near the oil pan bolt. I
> > put the car on ramps and tried to find the leak. The leak does not
> > occur when the car is running, only after you shut it off (which is
> > common for a water pump). I saw some fluid leaking from the pipe that
> > goes into the back of the water pump which is sealed with an o-ring.
>
> That's the thermostat-to-water-pump pipe.
>
> > Has anyone ever seen this seal go?
>
> Yes. Due to either
> 1) neglected coolant changes, or
> 2) rust, or
> 3) age drying out the O-rings.
>
> #1 and #3 are most common.
>
> > The car has 160,000 miles. It could
> > be the water pump but it doesn’t look like it is weeping from there but
> > it is hard to tell. The pipe that comes from the water pump has other
> > pipes connected to it, but it doesn’t look like they are leaking.
>
> Those hoses feed certain engine controls. They don't usually leak. At least
> not catastrophically.
>
>
>
> > It
> > looks impossible to get at the pipe that comes out of the back of the
> > water pump. Any suggestions would be appreciated. I plan on taking the
> > shroud off so that I can get a better look at where the leak is.
>
> Do that. The pipe can be removed once you take off the thermostat housing.
>
> --
> TeGGeR®
>
> The Unofficial Honda/Acura FAQ
> www.tegger.com/hondafaq/


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