ROG100

There are lots of issues with the HVAC Blower Motor. Most are over 20 years old and they can become noisy or stop working all together. Up until now the only solution was to buy new at circa $600 or buy a used unit with possibly the same issues. Another alternative offered was to modify the body of the blower to accommodate a new motor.

928sRus and friends have developed a “plug and play” solution using a new Bosch blower motor that requires no modification.

Remove the six clips (flat bladed screwdriver) holding the two halves of the body together. Remove the clip holding the electrical box cover in place. Disconnect the two contacts from the motor. Remove the bolt holding the motor into the blower body. Remove the squirrel cage from the splines on the old motor. Replace on the new motor and ensure the shaft is protruding slightly from the bush. Place the motor and cage assembly into the blower body and check that the cage runs smoothly and there is clearance. Assembly is the reverse and you are in business.

Higher speeds and increased flow over the old worn out motor are the benefits.

Price for the new motor is $169.95 plus shipping.

Pictures to be posted later – camera software not compatible with Windows 7.

Some cars 77 to 81 came with an earlier style blower which may or may not accept the new motor. We will try one this week to see if it works. The newer blower is backward compatible with the earlier style.

blown 87

Cool, six hundred bucks is hard to justify on a blower motor, one seventy is a price that will actually sell some.

993turbo

Great Job!!!!!!!

SeanR

I've used a kit from another vendor a few weeks back and it was an ok deal but required a bunch of cutting of the motor housing. Rog and I figured there had to be a better way and bingo, he found the proper replacement.

This is literally pull the old motor out, install new motor and put it all back together. That easy.

Schocki

Yep, plug and play. No modification to the motor or blower housing necessary

I will take a motor with me home tomorrow!

928er

nice.....I may need to get one....

Speedtoys

Southwest from Texas to CA is cheap, can I get the "Sean or Roger Installation Option" on that?


Seriously..Norcal could use a dedicated 928 wrench garage...

928er

Shocki, Are you back in DFW?

James Bailey

Very nice way to keep these cars NEW !!! Great job great price

RFJ

Yeah sure, now you tell me!!

NickT

OK time for maybe an obvious question but here goes anyway.

I just rushed down to take a look at the blower, I can see the forward two clips but not the remaining 4. Taking a quick look at the layout I think I came to the conclusion that the housing needs to somehow come out for this job. Have not even cracked the manual or done a search yet so I might find the answer soon.

Anyone care to chime in on the best way to replace the motor?

NickT

Found it

https://rennlist.com/forums/928-foru...vaporator.html

blown 87

You are not alone, I have a brand new unit, it is a blower from Porsche in a box just waiting to be put into a car, I thought I would use it on mine if a customers car did not need it. (and his did not, it was a time thing)

Schocki

Back tomorrow and we fly back to AZ on Tuesday.

S4ordie

Schocki, Are you going to be in AZ for very long? There is a pretty good crowd of 928 owners here in the Valley. Could possibly meet up with a more sophisticated crowd than those damn Texans.

Roger, any data on what the increased CFM rating is versus the stock fan motor.