[Public-list] "O" Rings

[George Dinwiddie]

John Boor wrote:
> Does a 1969 A30 have any "O" rings on the origional water, waste or Gas
> fuel filler screw caps.  Mine does not and have never had a problem with
> water intrusion.

Our 1973 A30 certainly has an O-ring on the gas fill.  I've replaced it 
a couple times.  I don't think I've checked the water fill.  And our 
boat didn't originally have a waste fill. ;-)

> On another tack I have an Atomic4 with fresh water cooling and was
> wondering what are the pro's and con's of a higher thermostat eg 160f
> thermostat.

The engine will run more efficiently at the higher temperature.  The 
lower temp is needed for raw-water cooled engines to keep the sulfates 
(or is it phosphates, I forget) from plating out inside the engine.

  - George


-- 
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   When I remember bygone days                         George Dinwiddie
   I think how evening follows morn;            gdinwiddie at alberg30.org
   So many I loved were not yet dead,           http://www.Alberg30.org
   So many I love were not yet born.
                'The Middle' by Ogden Nash
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