RE: cooling woes, cont

[Tom Watters <tomwatters@xxxxxxxxxxx>]

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Hi Jon,

There is a small hole on most thermostats that most of the air will come
out of the engine as you fill the radiator.  The thermostat housing on
most engines is the highest water point on the block.  When I filled my
440 after rebuilding it last month, I filled the radiator.  You could
hear a small stream of air bubbling up the top radiator hose.  Waited 20
or 30 minutes while I installed spark plugs.  Filled it again.  Did a
couple more things and filled it a third time.  After break-in, I
checked and the radiator was still full.  

There may have been a few spots in the back of the engine where the
water jacket hadnt quite filled in.  After a drive, the radiator had
gone down a bit.  Topped it off and havent had to add any more water.  

My car gets warm when sitting in traffic.  When moving, it keeps at 190.
 When stopped in traffic for 3 or 4 lights, it gets up to about 220.  I
will be installing a 26" shroud when I find one.  I added the 26"
radiator when I installed the engine.  If that doesnt work, I will space
the fan closer to the radiator, or put a clutch fan in, as that is about
the spacing I'll need.  I'm sure one of these 2 will fix my problem, but
if that doesnt work, will put a puller then a pusher electric fan on it. 

On Wed, 30 Jun 2004 23:00:42 +0000, "jon lepage"
<bigdaddy17516@xxxxxxxxx> said:
> tom, im thinking if you start with a dry block in essence its filled 
> with air. when you fill it with coolant does all the air dissapate? i 
> noticed when filling it the level kept bubbling and slowly went down. 
> then i had to refill it. im assuming this was some trapped air finding 
> its way to the higest point in the system. but not all the air was able 
> to get out??? mabey????
> 
> Tom Watters wrote:
> > 
> > With your radiator water level above the highest water point of the
> > engine, there shouldnt be any air in your engine water jacket after
> > running it long enough for the thermostat to open.  If there is, it
> > would be either a casting problem, or a leaking problem letting water
> > out and air in.
> > 
> > On Wed, 30 Jun 2004 22:09:14 +0000, "jon lepage"
> > <bigdaddy17516@xxxxxxxxx> said:
> > 
> > > what does the group think about the air being trapped in the block 
> > > causing poor coolant flow? how do ya get the air out? how do you tell if 
> > > 
> > > theres air at all? earl,am i reading your reply wrong? if i would drop 
> > > down a gear and maintain the same speed this would raise the rpm thus 
> > > increasing the coolant flow,thus lowering the temp?? or am i wrong?
> > > 
> > > 
> > > 
> > > 
> > Tom
> > 65 Dart GT 'vert
> > 68 Plymouth 'vert
> > Longmont, CO
> > 
> 
> 
> 
> jon lepage
> 1969 super bee,440,4spd
> 1965 ply sat,505 stroker,b1 heads,662hp,works in progress
> 
> 
Tom
65 Dart GT 'vert
68 Plymouth 'vert
Longmont, CO


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