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Jim Mosur has a petcock on his installation - saw it at Shady Bend last Oct.
I spent some time with Google yesterday trying to find a petcock to retrofit
into my car, and with an eye to needing one for my rotary engine cooling
system later. Here's a sample of one web source for $3.25
http://www.rockauto.com/dbphp/mak,PLYMOUTH,1995,GRAND+VOYAGER+LE,1237328,3.8L+230cid+V6+MFI+(L),COOLING+SYSTEM,2176,RADIATOR+DRAIN+PETCOCK
$3.52 No picture on this site.
It was late Saturday and I didn't even try the auto parts stores, but they
should have some in their catalogs.
I asked an auto mechanic friend last night if he ever put petcocks on
radiators - sometimes - didn't have a source in mind, but they are
available. From some vendors he can special order the petcocks be put on
instead of the plastic plugs that seem to be so common now.
When you find one that might generally be found in an auto parts store , how
about giving us a note on this list?
David
----- Original Message -----
From: "Russell Duffy" <13brv3@bellsouth.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Sunday, March 14, 2004 10:01 PM
Subject: [FlyRotary] It's Ed's fault :-)
> Greetings,
>
> "Yee of little faith" here decided to believe Ed, and not install bleed
> fittings in the top of my evap cores. Today's log follows. I imagine the
> mechanical pump would have done the job in several iterations of running,
> but I don't want to have to go through that every time I drain and fill
the
> system. Fortunately, I left the cores clecoed to the mounting brackets
for
> just such a reason. I'll be welding 1/8" pieces to the top of one tank on
> each core, and threading it for 1/8 NPT. If I can find a nice petcock
> locally, I'll use that, otherwise, just a plug for now.
>
> 3-14-04
>
>
>
> Did a lot of fiddly things to get ready to fill and start the engine.
> Unfortunately, when trying to fill the water, I couldn't. The EWP wouldn't
> pump, because it wasn't primed. It can't get primed, because there's no
> water in the evap cores. There's no water in the evap cores, because I
> listened to Ed and didn't install fittings in the top to bleed out the air
> :-) Installation of the bleed fittings is under way. There was also a
> pinhole leak in one of the EWP flanges. I need to fire my welder. It has
> now been "JB welded" within an inch of it's life. If it leaks now, I'll
> just have to throw it away.
>
>
> Cheers,
> Rusty (Ed, you owe me a beer <g>)
>
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