good thinkin' there.

I would expect one to be pretty large..just for safety's sake.
but they are saying the clear one ( obviously a better choice ..as far as
being able to tell how dirty/clogged it might be ) is only 2.75 inches long.
  I'd want it as large as a can size air filter myself.

'bypass' layout  is not a bad idea either.

might get you both ...
just branch with a T ....one branch goes straight though as normal,
the other through the filter ....that way some junk is trapped, but it can't
ever clog up and block coolant flow much.
Scott
turbovans.com

----- Original Message -----
From: "Michael Snow" <slowmachine82@GMAIL.COM>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Monday, September 19, 2011 11:30 AM
Subject: Re: Coolant filter

> On 09/19/2011 02:16 PM, Hector Zapata wrote:
>> Take a look, I saw this on Jay Leno's Garage.
>>
>> http://www.autocoolantfilter.com/
>
> I have always thought that these filters are a huge risk.  The only way
> that I would even consider installing one is in a bypass circuit where a
> plugged filter cannot restrict the flow of coolant through the engine
> and radiator.
>
> Mike