Heater Blower Upgrade Question

Congrats. And a hearty "neener, neener!!" to all those other suggestions.



"Michael White" > wrote in message
ink.net...
> It looks like we have a winner! The fan without the AC fits just fine.
> Some other notes for anyone planning on doing this:
>
> 1) The correct fan part number at AutoZone is PM102 and is made by
Siemens.
> Other parts stores may (or may not) vary.
>

> Tom Greening ) wrote on Sunday 05 December 2004 08:33
pm:
>
> > Go back to AZ and ask for the one without AC and compare. I think you
> > will find that's the ticket..
> >
> >
> > "Michael White" > wrote in message
> > k.net...
> >> All,
> >>
> >> I went out and bought the heater blower
> >> (http://www.off-road.com/jeep/tech/body/heater.html), and have run into
a
> >> problem or two. First off, both AutoZone and O'Reilley's only offer
one
> >> heater blower for that year, so there wasn't a choice between the
cheaper
> >> one and the more expensive one. It also does not come with a new fan.
> >>
> >> The first problem was that the motor housing was a bit bigger than 3
> >> 1/4",
> >> more like 3 1/2", but that problem is easily remedied. The second is

Did this upgrade improve your defrost ability? my defrost is really bad -
barely blows on the windshield.

--
_____________________
HomeBrewer
76-81-85CJ7
http://85cj7.blogspot.com/
All in one Jeep

"Michael White" > wrote in message
ink.net...
> It looks like we have a winner! The fan without the AC fits just fine.
> Some other notes for anyone planning on doing this:
>
> 1) The correct fan part number at AutoZone is PM102 and is made by
> Siemens.
> Other parts stores may (or may not) vary.
>
> 2) With the PM102, I'd use a bit to make a 3 1/2" hole, not 3 1/4" hole
> listed on the web site. I think the dimensions have changed since the web
> site was last updated, as mine fits pretty darn good (better than the
> factory fan).
>
> 3) The easiest, quickest way to make the hole is to use the nearby bolts
> from the removed battery tray to hold down a 1x4 covering the old hole,
> then drill from the inside. Note that you'll also need some longer bolts
> temporarily. Total time was under five minutes to find the bolts, mount
> the board, and drill the hole. Much easier than the aluminum crossbar on
> the web site (although a bit less accurate).
>
> 4) Replace the heater core. It's only $35, and not worth it to pull the
> whole thing apart again.
> --
> Michael White "To protect people from the effects of folly is to
> fill the world with fools." -Herbert Spencer, 1891
>
> Tom Greening ) wrote on Sunday 05 December 2004 08:33
> pm:
>
>> Go back to AZ and ask for the one without AC and compare. I think you
>> will find that's the ticket..
>>
>>
>> "Michael White" > wrote in message
>> k.net...
>>> All,
>>>
>>> I went out and bought the heater blower
>>> (http://www.off-road.com/jeep/tech/body/heater.html), and have run into
>>> a
>>> problem or two. First off, both AutoZone and O'Reilley's only offer one
>>> heater blower for that year, so there wasn't a choice between the
>>> cheaper
>>> one and the more expensive one. It also does not come with a new fan.
>>>
>>> The first problem was that the motor housing was a bit bigger than 3
>>> 1/4",
>>> more like 3 1/2", but that problem is easily remedied. The second is
>>> more serious, in that, after putting the old fan onto the new motor, I
>>> am
>> unable
>>> to put the heater blower back into the housing. The shaft on the new
>>> heater blower sticks out about 1/4" more than the old one.
>>>
>>> Any hints?
>>> --
>>> Michael White "To protect people from the effects of folly is to
>>> fill the world with fools." -Herbert Spencer,
>>> 1891
>
>

You probably have other problems somewhere ...the blower upgrade works on my
defrost vent but barely on any of the other vents ;p

--
griffin
'85 Jeep CJ-7
'97 Toyota Corolla SD

"HomeBrewer" > wrote in message
...
> Did this upgrade improve your defrost ability? my defrost is really bad -
> barely blows on the windshield.

Mine will defrost all the windows now!

I think the GM blower on low puts out more than the CJ blower did on
high, seriously.

I even have to turn my heater down now and can drive with no gloves on.

This is my first winter since the new blower with the hard top and hard
doors on and so far the heat is wicked! It was decent enough with the
soft top and soft doors that I didn't need gloves, now I don't even need
a coat!

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

HomeBrewer wrote:
>
> Did this upgrade improve your defrost ability? my defrost is really bad -
> barely blows on the windshield.
>
> --
> _____________________
> HomeBrewer
> 76-81-85CJ7
> http://85cj7.blogspot.com/
> All in one Jeep
>
> "Michael White" > wrote in message
> ink.net...
> > It looks like we have a winner! The fan without the AC fits just fine.
> > Some other notes for anyone planning on doing this:
> >
> > 1) The correct fan part number at AutoZone is PM102 and is made by
> > Siemens.
> > Other parts stores may (or may not) vary.
> >
> > 2) With the PM102, I'd use a bit to make a 3 1/2" hole, not 3 1/4" hole
> > listed on the web site. I think the dimensions have changed since the web
> > site was last updated, as mine fits pretty darn good (better than the
> > factory fan).
> >
> > 3) The easiest, quickest way to make the hole is to use the nearby bolts
> > from the removed battery tray to hold down a 1x4 covering the old hole,
> > then drill from the inside. Note that you'll also need some longer bolts
> > temporarily. Total time was under five minutes to find the bolts, mount
> > the board, and drill the hole. Much easier than the aluminum crossbar on
> > the web site (although a bit less accurate).
> >
> > 4) Replace the heater core. It's only $35, and not worth it to pull the
> > whole thing apart again.
> > --
> > Michael White "To protect people from the effects of folly is to
> > fill the world with fools." -Herbert Spencer, 1891
> >
> > Tom Greening ) wrote on Sunday 05 December 2004 08:33
> > pm:
> >
> >> Go back to AZ and ask for the one without AC and compare. I think you
> >> will find that's the ticket..
> >>
> >>
> >> "Michael White" > wrote in message
> >> k.net...
> >>> All,
> >>>
> >>> I went out and bought the heater blower
> >>> (http://www.off-road.com/jeep/tech/body/heater.html), and have run into
> >>> a
> >>> problem or two. First off, both AutoZone and O'Reilley's only offer one
> >>> heater blower for that year, so there wasn't a choice between the
> >>> cheaper
> >>> one and the more expensive one. It also does not come with a new fan.
> >>>
> >>> The first problem was that the motor housing was a bit bigger than 3
> >>> 1/4",
> >>> more like 3 1/2", but that problem is easily remedied. The second is
> >>> more serious, in that, after putting the old fan onto the new motor, I
> >>> am
> >> unable
> >>> to put the heater blower back into the housing. The shaft on the new
> >>> heater blower sticks out about 1/4" more than the old one.
> >>>
> >>> Any hints?
> >>> --
> >>> Michael White "To protect people from the effects of folly is to
> >>> fill the world with fools." -Herbert Spencer,
> >>> 1891
> >
> >

You have cable issues then. I am in Canada and drove one winter with
just the bikini top and half doors on and that GM blower would still
keep my feet and my bare hand on the shifter warm. (I used to smoke
cigarettes so it was handy to be able to have one bare hand free)

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

griffin wrote:
>
> You probably have other problems somewhere ...the blower upgrade works on my
> defrost vent but barely on any of the other vents ;p
>
> --
> griffin
> '85 Jeep CJ-7
> '97 Toyota Corolla SD
>
> "HomeBrewer" > wrote in message
> ...
> > Did this upgrade improve your defrost ability? my defrost is really bad -
> > barely blows on the windshield.

HomeBrewer ) wrote on Wednesday 08 December 2004 07:05 am:

> Did this upgrade improve your defrost ability? my defrost is really bad -
> barely blows on the windshield.
>

It helped quite a bit - before it was barely a trickle, even on high. But I
also replaced all of the weather stripping inside of the housing, better
seated the defroster pipe that runs to the defroster vents, and cleaned up
and re-sealed the rear cover of the housing.
--
Michael White "To protect people from the effects of folly is to
fill the world with fools." -Herbert Spencer, 1891

When I left work this morning it was -24 degC my windows were clear
all the way home on the 50 km highway drive, before doing the upgrade
2 years ago I would have had to leave the defrofster on and freeze my
feet. Since doing the upgrade I rarely have to put the lever over to
defrost ........ do the upgrade you won't regret the time spent.

On Wed, 8 Dec 2004 07:05:15 -0600, "HomeBrewer" >
wrote:

>Did this upgrade improve your defrost ability? my defrost is really bad -
>barely blows on the windshield.