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Re: [Healeys] 100 heater motor or switch problem

To: Michael Oritt <michael.oritt@gmail.com>
Subject: Re: [Healeys] 100 heater motor or switch problem
From: John Harper <ah100register@gmail.com>
Date: Thu, 25 Oct 2018 19:27:54 +0100
Cc: Forum <healeys@autox.team.net>
Delivered-to: mharc@autox.team.net
Delivered-to: healeys@autox.team.net
References: <CAPTa0B57xiJujWOMGwZmmMJdtv3gU7cxe6QdjYL8=T8+5jPwiA@mail.gmail.com>
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Michael

Assuming that you have a standard 100 heater undoing the three clips is
straight forward. This will expose the back of the rheostat. The wiring
goes though a small grommet at the top and this often perishes.

Removing the whole heater: after the hoses are disconnected is by three
fixings two are at the top front of the vertical bracket: welded onto the
box cross member. The other one goes through the back of the cross member
and you have to use a box spanner through a hole on the engine side after
perhaps removing blanking grommets. Putting this nut back when refitting
can be a little tricky.

Best regards

On Thu, 25 Oct 2018 at 19:03, Michael Oritt <michael.oritt@gmail.com> wrote:

> The fan motor in my heater worked nicely all summer but naturally chose to
> crap out once cooler weather arrived a few days ago and I'd like some
> advice from those 100 drivers who have previously removed/remounted their
> heaters.
>
> I have verified that power is getting to the heater lead from the fusebox
> I installed in the engine compartment, and the green wire disappears into
> and through the firewall, apparently intact Without disassembling the
> heater I cannot access the rheostat switch to trace whether it or the motor
> is the issue and before I pop off the three spring clips that seem to hold
> the heater faceplate to the rear plate I would like to know that doing so
> will allow me to get to the heater's innards.
>
> Also I would appreciate learning whether reassembly is the reverse of
> disassembly as those clips, esp. the one at the 12:00 o'clock position, do
> not look like they will be easy to get back into place with the heater
> mounted to the firewall, which leads me to my last question: How is the
> heater unit fixed to and removed from the car should I need to access the
> fan motor? Aside from one screw going through an ell-bracket at the top of
> the faceplate I see no other fasteners projecting through the firewall.
>
> Thanks in advance--Michael Oritt
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>

-- 
Best wishes

John Harper

AHC UK 100 Register Secretary

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<div dir=3D"ltr">Michael<div><br></div><div>Assuming that you have a standa=
rd 100 heater undoing the three clips is straight forward. This will expose=
 the back of the rheostat. The wiring goes though a small grommet at the to=
p and this often perishes.</div><div><br></div><div>Removing the whole heat=
er: after the hoses are disconnected is by three fixings two are at the top=
 front of the vertical bracket: welded onto the box cross member. The other=
 one goes through the back of the cross member and you have to use a box sp=
anner through a hole on the engine side after perhaps removing blanking gro=
mmets. Putting this nut back when refitting can be a little tricky.</div><d=
iv><br></div><div>Best regards</div></div><br><div class=3D"gmail_quote"><d=
iv dir=3D"ltr">On Thu, 25 Oct 2018 at 19:03, Michael Oritt &lt;<a href=3D"m=
ailto:michael.oritt@gmail.com">michael.oritt@gmail.com</a>&gt; wrote:<br></=
div><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-lef=
t:1px #ccc solid;padding-left:1ex"><div dir=3D"ltr"><div class=3D"gmail_def=
ault" style=3D"color:#3333ff"><span style=3D"color:rgb(51,51,51);font-famil=
y:Verdana,Arial,Tahoma,Calibri,Geneva,sans-serif;font-size:13px;background-=
color:rgb(250,250,250)">The fan motor in my heater worked nicely all summer=
 but naturally chose to crap out once cooler weather arrived a few days ago=
 and I&#39;d like some advice from those 100 drivers who have previously re=
moved/remounted their heaters.=C2=A0</span><br style=3D"color:rgb(51,51,51)=
;font-family:Verdana,Arial,Tahoma,Calibri,Geneva,sans-serif;font-size:13px;=
background-color:rgb(250,250,250)"><br style=3D"color:rgb(51,51,51);font-fa=
mily:Verdana,Arial,Tahoma,Calibri,Geneva,sans-serif;font-size:13px;backgrou=
nd-color:rgb(250,250,250)"><span style=3D"color:rgb(51,51,51);font-family:V=
erdana,Arial,Tahoma,Calibri,Geneva,sans-serif;font-size:13px;background-col=
or:rgb(250,250,250)">I have verified that power is getting to the heater le=
ad from the fusebox I installed in the engine compartment, and the green wi=
re disappears into and through the firewall, apparently intact Without disa=
ssembling the heater I cannot access the rheostat switch to trace whether i=
t or the motor is the issue and before I pop off the three spring clips tha=
t seem to hold the heater faceplate to the rear plate I would like to know =
that doing so will allow me to get to the heater&#39;s innards.=C2=A0</span=
><br style=3D"color:rgb(51,51,51);font-family:Verdana,Arial,Tahoma,Calibri,=
Geneva,sans-serif;font-size:13px;background-color:rgb(250,250,250)"><br sty=
le=3D"color:rgb(51,51,51);font-family:Verdana,Arial,Tahoma,Calibri,Geneva,s=
ans-serif;font-size:13px;background-color:rgb(250,250,250)"><span style=3D"=
color:rgb(51,51,51);font-family:Verdana,Arial,Tahoma,Calibri,Geneva,sans-se=
rif;font-size:13px;background-color:rgb(250,250,250)">Also I would apprecia=
te learning whether reassembly is the reverse of disassembly as those clips=
, esp. the one at the 12:00 o&#39;clock position, do not look like they wil=
l be easy to get back into place with the heater mounted to the firewall, w=
hich leads me to my last question: How is the heater unit fixed to and remo=
ved from the car should I need to access the fan motor? Aside from one scre=
w going through an ell-bracket at the top of the faceplate I see no other f=
asteners projecting through the firewall.</span><br style=3D"color:rgb(51,5=
1,51);font-family:Verdana,Arial,Tahoma,Calibri,Geneva,sans-serif;font-size:=
13px;background-color:rgb(250,250,250)"><br style=3D"color:rgb(51,51,51);fo=
nt-family:Verdana,Arial,Tahoma,Calibri,Geneva,sans-serif;font-size:13px;bac=
kground-color:rgb(250,250,250)"><span style=3D"color:rgb(51,51,51);font-fam=
ily:Verdana,Arial,Tahoma,Calibri,Geneva,sans-serif;font-size:13px;backgroun=
d-color:rgb(250,250,250)">Thanks in advance--Michael Oritt</span><br></div>=
</div>
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</blockquote></div><br clear=3D"all"><div><br></div>-- <br><div dir=3D"ltr"=
 class=3D"gmail_signature" data-smartmail=3D"gmail_signature"><div dir=3D"l=
tr">Best wishes<div><br></div><div>John Harper</div><div><br></div><div>AHC=
 UK 100 Register Secretary</div></div></div>

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