[DeTomaso] head drilling for air release

[Bill Lewis]

I made this remark several months ago:  At our amusement park/ranch, we had a C.P.Huntington RR train, and it had a 4 cylinder Ford engine in it.  We overhauled it, but afterwards it kept running hot.  After checking everything several times over a several day period, we poked a water hose into the radiator, started the engine and let it idle for a long time, maybe 30-45 minutes.
Apparently, this let the "air bubbles" work their way out - it never caused a problem again.
---Bill Lewis





> From: cdifani at comcast.net
> To: asajay at asajay.com; detomaso at realbig.com
> Date: Thu, 3 Sep 2009 03:24:44 -0700
> Subject: Re: [DeTomaso] head drilling for air release
> 
> AJ:
> 
> Do you want me to ship my vacuum radiator filling device to you?  It uses 
> shop air to generate a vacuum, it applies that vacuum to your cooling 
> system.  Then it uses that evacuated cooling system 'suction' to fill the 
> system with your coolant.  It's got a suction tube that drops into your 
> coolant container.  It's also supposed to 'dissolve' air bubbles, etc., in 
> the system.  Then you'd only have the thermostat to worry about.
> 
> If you want me to ship it, give me your address, and I'll get it out 
> Thursday afternoon.
> 
> This is the Harbor Freight system that we discussed on the list a month or 
> two ago... or was it three months??
> 
> The only requirement is you need a shop air compressor.  About a 2 
> horsepower size.
> 
> Let me know,
> 
> Chris
> 
> Chris Difani
> '73 L #5829 "LITNNG"
> The Electric Pantera
> Sacramento, CA
> Email: cdifani at comcast.net
> 
> _________________________________________________
> 
> ----- Original Message ----- 
> From: <asajay at asajay.com>
> To: <detomaso at realbig.com>
> Sent: Wednesday, September 02, 2009 9:02 AM
> Subject: Re: [DeTomaso] head drilling for air release
> 
> 
> > I'm still flustered with that whole idea.
> >
> > I have a 351C installed in my Mach I.  I've never had any problems
> > bleeding air from the system, getting it full of coolant, etc.  It
> > doesn't have air bleeds at the back of the heads.  So doing a bit of
> > Kepner-Tregoe analysis on this, what are the similarities and
> > differences.
> >
> > The engine in the Mach I tilts in such a way the front of the engine
> > is slightly higher than the back (I think), but in the Pantera, it's
> > just the opposite.  So in the Pantera, I can see air getting trapped
> > at the back of the head, but if you've managed to bleed the system
> > properly, are they really necessary?
> >
> > Which makes me wonder why I would want to jack up the -back- of the
> > car, when it seems to me I should be jacking up the -front-.  But then
> > there is the radiator up front which could trap air.  In my case, I
> > know the radiator was full, as I had a sight-hose connected to the
> > upper corner to verify it was full.
> >
> > My brain hurts.
> >
> > Asa Jay
> >
> >
> >
> >
> >
> > Quoting Larry Finch <fresnofinches at aol.com>:
> >
> >> Is drilling the heads for air release, as Sean just wrote about,
> >> something that could be done with them installed in a running car, as
> >> opposed to something only done with heads off?
> >>
> >> I imagined drill shavings and thread-tapping shavings could easily be
> >> an issue.  But I intend to replace my radiator this Winter, so having
> >> shavings lodge in this current radiator is not really an issue.  And I
> >> also currently have a Tefba coolant filter in place; its purpose being
> >> to trap any free flowing trash prior to the new radiator install.
> >>
> >> I'm thinking now would be a good time to get those air bleed holes
> >> installed in my engine?
> >>
> >> Larry
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