• Hello Guest, welcome to the initial stages of our new platform!
    You can find some additional information about where we are in the process of migrating the board and setting up our new software here

    Thank you for being a part of our community!

IPD Blower Motor is too short to fit my 1993 240

M

maximation

New member
Joined
Jun 23, 2022
I bought the blower motor replacement kit on IPD, and I was in the middle of a multi-day project when I realized the new blower motor is too short. The spindle is long enough for it to reach the right side’s fan, but not the left side.

I took it out, tried to orientate it differently, and nothing would work. I compared the old and new motor side by side and realized that the new motor’s spindle was shorter on one side than the old motor’s. (Specifically with the flat part in the middle being shorter than the other)

11E7BCD9-B05B-470A-975F-AF77E3CE5989.jpeg

I can’t find anything when looking it up except for one post that mentions this:
IMG_2769.jpeg


But I’m confused because the only cover between the motor and the fan is the black cover which is half of the vents?

IMG_2773.jpeg

The IPD manual doesn’t mention this, and neither do the videos online, and I was hoping this would be done during this 3 day weekend, haha. I would really appreciate the help.
 
It isn't obvious in your picture what the actual problem is. The motors are not the same design, therefore, don't let appearance fool you. If you measure from the motor mounting flange to the end of the shaft on each side do you get the same measurement with both motors? The shaft should be the same length on both motors and have the same measurement flange to the end of the shaft on both motors. Do both impellers fit properly on the new motor? You don't even need to replace the clips to test fit the impellers. Do they seat on the shaft and leave room for the clip to be installed? If all that checks out, the new motor should fit properly when installed. The replacement motors IPD is selling have all kinds of quality issues. It may have a shaft that is too short, or hasn't been machined properly. That would not surprise me at all. If all that doesn't check out OK, don't modify your AC case to make the motor work. Notify IPD the motor is made incorrectly and have them issue a RMA and send you a replacement motor.
 
Last edited:
I've done this job semi recently and even then I'm confused about what you suspect the issue is. Just bolt the motor in, pop the fan wheels on, and see if it rubs on the covers or anywhere else.
 
maximation said:
I took it out, tried to orientate it differently, and nothing would work. I compared the old and new motor side by side and realized that the new motor’s spindle was shorter on one side than the old motor’s.
Click to expand...
I could swear that (by your pic) the dirty corroded silver motor was the "old" one, and the shiny black one was the new one, with a shaft that seems to be longer than the silver's. Of course, you're blocking half of the black with your hand, and taking the pic on an angle, which makes it much harder for us to compare them "side by side". Is the spindle actually shorter, or does the motor body just stick out a bit more?
 
MasterBlaster said:
I could swear that (by your pic) the dirty corroded silver motor was the "old" one, and the shiny black one was the new one, with a shaft that seems to be longer than the silver's. Of course, you're blocking half of the black with your hand, and taking the pic on an angle, which makes it much harder for us to compare them "side by side". Is the spindle actually shorter, or does the motor body just stick out a bit more?
Click to expand...
I agree. The dimensions need to be checked against the flange's inside surface where it mounts to the housing. Just this week I have correspondence from a brick owner (84 240) following the path on my web page who encountered a serious shaft length discrepancy resulting in the left impeller rubbing the inner volute well before the retainer clip slot is exposed while assembling that impeller. Unknown source of parts. I'm getting the impression he is replacing a previously replaced motor that was installed without removing the pre-85 mounting bosses. PO had it scraping on the passenger side, but now after removing the bosses, his fits well on that side, but untenable on the driver's side.
 
On older cars you have to grind down the three mounting tabs inside the heater box to accept the newer style motor. Been there many times.
 
You must log in or register to reply here.
Back
Top