OK, guess I should have been more specific.

Channel Lock (kinda like taking a drink from my Thermos Bottle) if you  
are careful.  Those that I have had to take off have not been that  
tight.  If you really want to get anal - it is part number  
068-115-723, oil cooler nut, 27 mm.  For those of you w/o Metric  
wrenches (sorry, sockets) that's just a hair [.00040") bigger that a 1  
1/16 inch.  Might be a bit tight, and I have used 1 1/8 socket (as  
well as that Channel Lock mentioned earlier).

Mind  you, if using that Channel Lock, you're going to want to be  
careful.  As Dennis noted, the nut is really thin (with beveled corner  
flats).  But then, as noted, it's usually not that tight.

YMMV

Ch

FIRST Mentor and
Systems Engineer  <<-- Searching.....

Systems Integration & Analysis - Requirements Analysis - Documentation  
- Leadership

www.linkedin.com/in/carlghansen
*******************************************************************************

On Jan 5, 2014, at 9:23 AM, Dennis Haynes wrote:

> Channel Lock is a brand name for a lot of different types of tools.  
> Many still made in USA. That nut is thin and can be messed up with  
> those groove lock pliers. They do come in handy though.
>
> Dennis,
> From my phone.
> From: Carl Hansen
> Sent: ‎1/‎4/‎2014 9:36 PM
> To: vanagon@GERRY.VANAGON.COM
> Subject: Re: 88 GL - Oil Cooler R&R
>
> Channel Lock?
>
> Ch
>
> FIRST Mentor and
> Systems Engineer  <<-- Searching....
>
> Systems Integration & Analysis - Requirements Analysis - Documentation
> - Leadership
> www.linkedin.com/in/carlghansen
> *******************************************************************************
>
> Date:    Sat, 4 Jan 2014 16:15:52 -0600
> From:    JRodgers <jrodgers113@GMAIL.COM>
> Subject: 88 GL - Oil Cooler R&R
>
> I am almost ready to remove the cooler after my big oil leak. Have new
> O-ring, new filter and oil ready to go, and an exquisite 3/8 internal
> pipe wrench.
>
> Question:: Does the big nut threaded on the pipe though the oil cooler
> have to come off before the pipe itself can be backed out? Or is the  
> nut
> there just to set the position of the cooler on the pipe?