[DeTomaso] head drilling for air release

[asajay at asajay.com]

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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