Tight access and limited visibility. Reminds me of when I changed the
oil pan gasket on my daughters '88 Volvo 240DL. I was certain it was
leaking and spent 7 hours under it putting in a new gasket. When I
started it and watched it continue to leak (Arrrgghhh!!) I soon
discovered it was the oil sending unit just one inch above the gasket.
This time it was more apparent because just before I started working
on the oil pan I pressure washed the engine. The dirt, grime and
difficult access kept me from seeing it the first time around.

Took me 10 minutes to replace the sending unit. Arrrgh!

Mark K
1986 GL/2WD/4SPD

On Dec 11, 2009, at 9:47 PM, John Goubeaux wrote:

> You were right !!!  Although the leaking coolant appeared to be coming
> from the oil cooler ( and I was convinced it WAS the cooler) I found
> out
> after swapping the cooler that it was NOT the problem. The oring
> seal on
> the water pump was the issue and coolant was getting by there and only
> looked as if it was dripping off the cooler.
>
> Thanks for all the replies..!!  This is a difficult thing to diagnose
> b/c of tight access and limited visibility.
>