I agree with Angus. Here is what they look like:
http://www.amazon.com/Superior-Tools-2-Inch-Internal-Wrench/dp/B000AO1IOI

Ken Lewis

On Mon, May 10, 2010 12:49 pm, Angus Gordon wrote:
> An internal pipe wrench is the slickest method of removing this tube.
> 3/8" if my memory is correct.
>
> Angus
>
>
> Angus Gordon
> Bainbridge Island WA
>
> On Monday, May 10, 2010, Jim Davis <SyncroHead@aol.com> wrote:
>> Hi gang!
>>
>> I'm in the midst of swapping a 2.1L engine into my '84 Westy.  I need
>>  to
>> remove the oil filter mount tube from the 1.9L engine to install it on
>> my
>> 2.1L engine.  This item is just a short pipe "nipple" threaded into the
>>  block
>> on one end and the oil filter threads onto the other end.
>>
>> How do I remove this part without damaging it?
>>
>> Jim Davis
>>
>
> --
> Angus Gordon
> 206-369-9925
> Bainbridge Island WA
>
> birdworks@gmail.com
>
>