Re: Coolant Vani****ng: '95 Civic EX 1.6 - Attn Tegger and Techs

motsco_ <motsco_@[EMAIL PROTECTED]
> wrote in
news:13rpah1bmfjdo50@[EMAIL PROTECTED]
 


> 
> Volvos and Dodge products that I owned had pressurized reservoirs. The
> coolant level in them went up and down with temperature, but the HONDA
> isn't supposed to, since it's reservoir isn't under pressure at all. 
> Boiling hot coolant isn't supposed to take up much more room than cold
> coolant, [...]



But it does. ALL materials expand with heat.

The reservoir level naturally rises and falls as the coolant heats and 
cools. This is the purpose of the various seals in the rad cap, and for
the 
very presence of the (unpressurized) reservoir in the first place.

You don't have to take my word for it. Check your own reservoir's level at

dead-cold. Drive the car to full-hot, then have another look at the level.

It will be at least a half-inch higher.

Coolant is constantly traveling in and out of the reservoir with every 
heat-cool cycle. It's a normal and necessary feature of a modern sealed 
cooling system's operation.




-- 
Tegger

The Unofficial Honda/Acura FAQ
www.tegger.com/hondafaq/