What a peculiar coincidence that you should bump this thread just now. I
haven't checked this list for months and months (hello everyone!). But
tonight I check in to search for any messages on the very same subject.

I have exactly the condition you described last year, Edward. The engine
gets warms and starts pissing coolant exactly as you describe. Likewise, I
could not pinpoint the location. I did manage to eliminate the head gasket
as the source. I assumed that it was either cooler or water pump.

So I can look forward to replacing the small hoses at minimum. Does it ever
happen that the body of the cooler springs a leak? If it's waterpump, is it
likely the main gasket or does it leak at the shaft?

cheers,

On Thu, May 12, 2011 at 8:57 PM, Edward Maglott <emaglott3@gmail.com> wrote:

> Remember this curiosity from 13 months ago?  (Probably not)  It never
> leaked again until this week when I found one of the oil cooler hoses
> has a split in it.  I bet it was a tiny split 13 months ago and the
> weakest point in the system.  I know I looked at that hose back then
> because it seemed to be one of few things that could leak in that
> area.  That poor little hose is in a tight spot right next to the
> exhaust header where it attaches to the head.
>
> Edward
>
>
> At 07:58 PM 4/7/2010, Edward Maglott wrote:
>
>> I checked my van tonight and this one time leak remains
>> mysterious.  I took the belt off the water pump.  The pulley has
>> very little play in it.  Almost none in and out along the shaft axis
>> and just a little click moving the pulley up and down.  That doesn't
>> really mean anything in terms of measurement, I know.  I will try at
>> some point to rig up a dial indicator to measure it.  the shaft
>> turns smoothly by hand with a little resistance.  I pressurized my
>> cold cooling system and got no leaking anywhere near the location
>> that the roadside leak occurred.
>> Puzzled-- Edward
>>
>> At 07:39 AM 4/6/2010, Ken Wilford wrote:
>>
>>> I concur with Dennis.  It sounds like a water pump starting to leak
>>> to me.  They can be intermittent some times.  You need to get this
>>> checked out and repaired very soon as the pump can lock up and fry
>>> your engine in less than a couple of minutes.  Let me know if you
>>> need any parts.
>>>
>>> Ken Wilford
>>> John 3:16
>>> www.vanagain.com
>>>
>>>
>>> Edward Maglott wrote:
>>>
>>>> I had driven for maybe 100 miles this morning, the last 20 or so on
>>>> the interstate.  I stopped at a rest area.  I usually let the engine
>>>> idle at least a minute in that situation because  I know it hates
>>>> that hard running then engine shut off scenario.  Well, I was in  a
>>>> hurry and shut off the engine.  I looked underneath to check for the
>>>> leaking ATF situation I've been having and to my horror there was
>>>> coolant dripping/running off of the oil filter and the oil
>>>> cooler.  It was probably a few ounces total.  I came back from the
>>>> restroom and set about finding what was up.  Looked from the top and
>>>> saw nothing.  Crawled under with flashlight and still could not see
>>>> anything in the way of a source of the leak.  started the engine and
>>>> revved it bit-  still nothing.  Coolant level was fine in both tanks
>>>> and the hose between them was secure.  I thought I heard what might
>>>> be water pump noise, but didn't take the belt off to check for play
>>>> in the shaft.
>>>>
>>>> Drove the rest of the way (about 160 miles of interstate, including a
>>>> mtn climb) home with eagle eye on the gauge and light and frequent
>>>> stops to check for leaks.  Nothing.  I'm guessing that the temp
>>>> spiked when I didn't let it idle after the highway running and maybe
>>>> had a pressure spike.  What in the area above the oil cooler and
>>>> filter might cause this intermittent leak?  The weird part is that
>>>> after that one time it didn't continue leaking.
>>>>
>>>> Edward
>>>>
>>>

--
mordo
1990 Carat