Re: 70 hornet heater core replacement -- NOT FUN.

[Tom Jennings <tomj@xxxxxxx>]

The bottom of the glovebox is part of the dash ass'y for ALL hornets  
and gremlins (maybe concords and eagles?). The 73 heaterbox is  
completely different than 70, but as Doc points out, same problem.

The car is small, is the issue; the under-dash volume is less than my  
63, with more stuff in it.

I'm sure the glovebox bottom could have been done otherwise, but when  
you have the big molded assembly out (I have one hanging on the wall)  
it forms a stiffening box section, as does the gauge cluster surround  
on the left. Any change would have cost money and time.

It's also entirely possible that they didn't notice the clearance  
issue until it was too far into the design, and just let it go as  
'one of those things'; how often do you change heater cores? Eh.

(The roof of the glovebox is a cardboard insert; I don't have one  
because my replacement AM loudspeaker has a larger magnet (technical  
term: "maggit") than factory and protrudes. It's not a problem except  
metal junk likes to jump up there. When I put metal junk in the  
glovebox it's always a bad sign anyways.







On Nov 21, 2005, at 4:55 AM, farna@xxxxxxx wrote:

> Hmmm.... maybe that's WHY the 73 is a totally different heater box  
> design?
> So the glove box is molded into the dashboard, not removeable?  
> That's a poor design for later maintenance for sure! Ugggh... it's  
> that way in the 73 also (http://www.tocmp.com/manuals/AMC/1973/ 
> Service/Chapter18/browser.htm , page 18-2). But, the 73 TSM says to  
> do exactly what you did (http://www.tocmp.com/manuals/AMC/1973/ 
> Service/Chapter12Ahtml/browser.htm , page 12A-5) -- "Pull the right  
> side of the instrument panel slightly rearward and remove the  
> heater housing." that's the last step! Makes me gald to have a  
> removeable glove box in the 63. I've been thinking a nice little  
> Hornet two door sedan or Sportabout would be a good one to have  
> too. Guess I'll check the heater core before getting to far if I  
> get one (and remember!). Are the later models (specifically Spirit)  
> the same way, or do they have a removeable glove box?
>
> On November 20, 2005 Tom Jennings wrote:
>
> > I found the trick: remove the entire !#@@#$!@! dashboard! Well only
> > partly; remove, besides the obvious (fan motor, hoses, wires, etc):
> >
> > package tray (always suggested)
> > right kick panel
> > all top dash screws
> > dash body bolts (at least R side)
> > "up" parking brake bolt
> > windshield surround
> >
> > Pull the dashboard 3" back; this alone gives the heater box enough
> > clearance to drop down, and out. (There was no mystery screw; it was
> > simply up against the back of the glovebox moulded into the dash  
> > ass'y.)
> >
> > The 1970 Hornet (and likely Gremlin) is different from all other
> > years, though I will eyeball the '72 to see if it's got the same
> > clearance issue. The parts car, a '73 Hornet, I fully disassembled
> > already, so can't look there, plus it's a totally different heaterbox
> > design.
>
>
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