Coolant flushing before teardown..

[Jon Pike <jhpike@domain.elided>]

Digestians..

Another dark thought has cropped up,  I was wondering how big a deal not 
flushing, descaling, cleaning, etc,  the coolant circuit of an engine 
is,  when you are going to tear it down?  
I didn't do that when I got the car..  and with the lack of maintenence 
I've been seeing,  knowing the car was virtually in storage a few years 
in the recent past..  I'm wondering just how much silt, or mineral 
deposits might be in there to mess with my rebuild.

Or,  do I worry too much?

At least now,  the car's coolant looks a normal color..  so perhaps it's 
not been running on straight tap water the last 14 years.

The "issue" is,  I have the oil out,  lower sump off,  alternator off, 
etc..  and it would be a bit of work to put it back to running,  just 
to do a hot flush..

While I'm asking..  what is a good, safe descaler/cleaner for an 
aluminum motor,  and the best way to use it?  My Autobook manual says 10 
oz of baking soda in 1 3/4 gal of water,  and run the engine for 10-15 
minutes..  
Thanks again..

Jon
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