[TR] Keeping cool in a TR3, Revised

[Geo & Kathleen Hahn]

This is a common (albeit controversial) method of blocking the bypass hose 
when using a typical auto-store replacement thermostat.

The original style tstat Bill mentioned has a sleeve that blocks the bypass 
as it opens.  Modern-style tsats lack such a sleeve but (particularly in 
climates where cold mornings do not occur) owners often use the copper cap 
you describe.

I use one but also have a 3/16" hole drilled thru it to permit some flow 
rather than have hot coolant burst on the scene all at once when the tstat 
opens.

Can't swear it helps -- can't swear any of the things I have done help --  
but the engine does not over heat in Tucson summer driving and everyday 
mountain climbs.

Geo

----- Original Message ----- 
From: <DLylis at aol.com>

> When I disassembled my 3A motor I found that the bypass hose was plugged
> with a 3/4" copper end cap, and I understand that this is not an uncommon
> practice.  What is the purpose of this...