The metal pipes on my two '82 Vanagon Diesels are 1.25" OD.  I have never
measured (or seen) the plastic pipes, but I have one hose that was meant to be
used with them and it fits nicely over a 1.50" coupling.

Maynard Southard  OvO '79
'82 Westy Diesel "Reinhardt"
'82 Vanagon GL Diesel
'93 EV GL "Klinger"
'00 Golf GLS TDI "WooHoo"
'84 Jetta GL TD "Donor"

On Tuesday, October 02, 2001 12:13 AM, John Pronk <john_pronk@STRATOS.CO.NZ>
wrote:
> Can anyone give me the outside diameter of the steel and plastic coolant =
> pipes running to and from the engine to the radiator.
> I need this info as I am water-cooling a air-cooled '82.
>
> regards
> John.