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> 70 914-6, fresh air blower motor
huck914-6
post Jan 15 2019, 03:10 PM
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hey guys first post here.

so im currently in the middle of doing the front fresh air blower motor and I bought the bosch replacement motor. my problem is I cant get the new motor down into the housing far enough to engage the spring clips to hold it in place. has anyone ever done just the motor replacement?
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914Sixer
post Jan 15 2019, 03:42 PM
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Pictures would help
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burton73
post Jan 15 2019, 04:00 PM
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Bob B
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Retroracer
post Jan 15 2019, 08:54 PM
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QUOTE(huck914-6 @ Jan 15 2019, 01:10 PM) *

hey guys first post here.

so im currently in the middle of doing the front fresh air blower motor and I bought the bosch replacement motor. my problem is I cant get the new motor down into the housing far enough to engage the spring clips to hold it in place. has anyone ever done just the motor replacement?


Hey, welcome to the world!

I did the motor replacement thing about 3 years ago, and recall having to, ah, gently modify the replacement motor to fit. I vaguely recall having to cut some extraneous lugs or mounting tabs off? Compare and contrast the old and new motors carefully to see the differences - calipers can help here - and good luck.

Looking back, I took photos of the old motor and wiring, but sadly not of the shiny replacement - so no help posting those here. Be good to have that info documented on the site.

- Tony
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UROpartsman
post Jan 17 2019, 04:39 PM
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We just released complete Blower Motor assembly 911 571 320 32, so folks will no longer have to hassle with modifying motors to make it work. Here's the announcement: http://www.914world.com/bbs2/index.php?act...=4&t=335661


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bdstone914
post Jan 18 2019, 09:56 AM
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QUOTE(UROpartsman @ Jan 17 2019, 04:39 PM) *

We just released complete Blower Motor assembly 911 571 320 32, so folks will no longer have to hassle with modifying motors to make it work. Here's the announcement: http://www.914world.com/bbs2/index.php?act...=4&t=335661

@UROpartsman

The fan blade is a different design than OEM.
1. Have you tested it for CFM airflow?
2. Are the blades balanced like OEM? See the wire clips used by the factory ?
3. Has it been test fitted into a 914 fan housing?


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UROpartsman
post Jan 18 2019, 11:24 AM
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Here's current OEM, our fan is the same shape: https://www.pelicanparts.com/More_Info/911-...SVSVSI=0807.htm

Will check with engineering for answers to the other questions.
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bdstone914
post Jan 18 2019, 07:22 PM
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QUOTE(UROpartsman @ Jan 18 2019, 11:24 AM) *

Here's current OEM, our fan is the same shape: https://www.pelicanparts.com/More_Info/911-...SVSVSI=0807.htm

Will check with engineering for answers to the other questions.


Looks like the OEM and your part is identical. Looks like you are sourcing from the same place Porsche gets theirs.
I got a URO brake switch and a Genuine Porsche. Made on the same tooling from the stamping marks. Only difference was Porsche part had the part number ink jetted on the part.
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worn
post Jan 19 2019, 08:04 PM
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QUOTE(bdstone914 @ Jan 18 2019, 05:22 PM) *

QUOTE(UROpartsman @ Jan 18 2019, 11:24 AM) *

Here's current OEM, our fan is the same shape: https://www.pelicanparts.com/More_Info/911-...SVSVSI=0807.htm

Will check with engineering for answers to the other questions.


Looks like the OEM and your part is identical. Looks like you are sourcing from the same place Porsche gets theirs.
I got a URO brake switch and a Genuine Porsche. Made on the same tooling from the stamping marks. Only difference was Porsche part had the part number ink jetted on the part.

Looks like a win win if the producer goes to the trouble of balancing and due diligence in test fitting. If they were to do that we would win and they would get chops for doing it right.
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UROpartsman
post Jan 21 2019, 04:34 PM
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Just got word from engineering:
  • The fan blades are balanced, in fact you can see a metal balancing clip on one of the blades in the above product photo.
  • Though it was already done prior to production, we just grabbed a random fan assembly off the shelf and was compared it to OEM using a 3D scan. Exterior dimensions are within 1mm of OEM (and that minor difference is probably due to slight position differences during each scan), so fitment in the housing shouldn't be an issue.
  • The electric motor has similar performance specifications and 3D scanning shows that the fan blades match OEM, so CFM should be very comparable to OEM.
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