Re: IML: Power Piston on '57 and '58

[rexcrews <rexcrews@xxxxxxxxxxxxx>]

David, Hugh, et al,

Yes, this valve which is controlled by oil pressure from the engine (I think) is what I am calling a "power piston."  I don't remember where I got that term, but it opens and closes the air ducts for the heat/air conditioning/off positions.  I understand they can freeze up, which mine seems to have done from lack of use.

Thanks!

Rex Crews
On Sep 17, 2007, at 3:43 PM, David Dimitriou wrote:

> You know what they say about pictures. I think the beastie in question is the one listed as valve 24-28-330. Both my 57 and 58 have one. 
>
> regards,
> Dave 
>
> "Hugh, 58 Imperial" <imperial58@xxxxxxxxxxx> wrote:
> > question. I thought I was pretty much up on all things 58 but I confess I 
> > have no idea to what this question is referring. A power piston that
> > controls the damper, huh? Sounds cool but I haven't got the foggiest clue
> > what is being asked about. Good news is you are supposed to learn something
> > new everyday. I look forward to being edumicated.
> >
> > Hugh
> >
> > ----- Original Message ----- 
> > From: "rexcrews"
> > To:
> > Sent: Monday, September 17, 2007 11:02 AM
> > Subject: IML: Power Piston on '57 and '58
> >
> >
> > > Hi, Group,
> > >
> > > Can someone tell me who rebuilds the power piston that controls the damper
> > > on the '57 and '58 Imperials? Mine is stuck open at the moment but I am
> > > removing the dash and would like to repair the power piston while it's all
> > > apart!
> > >
> > > Thanks,
> > >
> > > Rex Crews
> > >
> > >
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> >
> >
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