Author Topic: Replace Heater Blower Motor and Core  (Read 3346 times)

Pagodatastic

  • Full Member
  • Junior Level
  • *
  • United Kingdom, England, London
  • Posts: 38
Replace Heater Blower Motor and Core
« on: June 23, 2022, 17:24:22 »
Dear all,
I have just sourced a replacement heater/blower motor and a re-conditioned heater core.
Before I start work to replace them both any advice would be gratefully received.
Thanks so much
Best
Steve
SL280

dirkbalter

  • Full Member
  • Platinum
  • ******
  • USA, CA, Corona
  • Posts: 1476
Re: Replace Heater Blower Motor and Core
« Reply #1 on: June 23, 2022, 18:01:40 »
Steve,
someone here said that the car is build around the heater, which is probably true.
You will have to remove a lot of components in and around the dash to get to it.
Dirk
66 230 SL
70 280 SEL
53 CHEVY 3100
18 C300 COUPE
05 HD FLSTNI

WRe

  • Full Member
  • Platinum
  • ******
  • Germany, Hessen, Seeheim-Jugenheim
  • Posts: 1453
Re: Replace Heater Blower Motor and Core
« Reply #2 on: June 23, 2022, 19:23:28 »
Hi,
everything you need to know you can find here:
https://www.w113.eu/geschlossen/Reparaturen/Pagode%20Bedienscheiben%20Luefter%20Luefterrad%20ausbauen.html.

I did it a few weeks ago, a real imposition.
I also replaced the sintered bearings of the blower motor with ball bearings, which is a significant improvement.

It is also worth removing the heat exchanger and cleaning it inside and out.

...WRe

CJHenderson

  • Full Member
  • Silver
  • ****
  • USA, AR, Benton
  • Posts: 469
Re: Replace Heater Blower Motor and Core
« Reply #3 on: September 14, 2024, 13:37:40 »
Thank you for this link it helps to guide me.
1970 280SL/8 W113 101624 miles.
1950 MG-TD
2021 Harley Davidson CVO Trike

Kevkeller

  • Full Member
  • Silver
  • ****
  • USA, HI, Honolulu
  • Posts: 388
Re: Replace Heater Blower Motor and Core
« Reply #4 on: September 15, 2024, 01:34:31 »
Good idea to replace the bushings with bearings. Do you remember the size?
1970 280 SL

WRe

  • Full Member
  • Platinum
  • ******
  • Germany, Hessen, Seeheim-Jugenheim
  • Posts: 1453
Re: Replace Heater Blower Motor and Core
« Reply #5 on: September 15, 2024, 06:26:30 »
Hi,
It's all in the document above, 8x16x6 mm, e.g. SKF 638/8-2Z. But you need new bearing shells too which are self-made by a Pagodentreff member.
...WRe

rwmastel

  • Full Member
  • Platinum
  • ******
  • USA, OH, Canal Winchester
  • Posts: 4634
  • Pagoda SL Group: 20+ years and going strong!
Re: Replace Heater Blower Motor and Core
« Reply #6 on: September 15, 2024, 12:16:06 »
Perhaps that Pagodentreff member could sell entire kits.  Seems like one or two people per year are replacing heater cores.  If it is a significant improvement for the blower motor, then maybe there's some demand?  They could stock 10 kits and be set for a while.
Rodd

Did you search the forum before asking?
2017 C43 AMG
2006 Wrangler Rubicon
1966 230SL auto "Italian"

sandcrab59

  • Full Member
  • Silver
  • ****
  • USA, MA, Lunenburg
  • Posts: 443
Re: Replace Heater Blower Motor and Core
« Reply #7 on: September 20, 2024, 23:03:16 »
The only thing I see that is missing is
A- The three cables from the heater flaps , how are they put in the firewall? From the flaps towards the fire wall or from the firewall
towards the heater flaps.?
B- is the vents to the right and left( that are under the dashboard ) are they put in first or after the blower motor is put in place.
I took mine apart 18 years ago and I really do not remember how they came apart.
So far these are the only questions I have about the blower motor , I am sur there will be more as I put it back together.
Tom M
71 280SL-8  Euro
67 250 SL
72 220 D
1982 300 SD
1983 300SD
1985 300SD
1931 Model A Ford Roadster
1997 Corvette C5