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replacing radiator fan and motor?

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Old Jun 17, 2002 | 04:44 PM
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From: https://www2.mazda.com/en/100th/
the fans are on the radiator, changing the fans are the same as changing the radiator, except the radiator does not need to leave the car

mike
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Old Jun 17, 2002 | 05:04 PM
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you have to bend the lines....there is no way around it...trick is to do it slow and bend as little as possible....

but it is the only way
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Old Jun 17, 2002 | 07:53 PM
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The lines will flex some...they are not totally rigid...Yes you want to keep your duct...it has a scoop that goes in the front end and draws are to the IC.. IC w/o ducting as lame...

Is the blitz IC still using the Oem ducting ?...I'm not too familiar with that IC.
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Old Jun 18, 2002 | 05:32 AM
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Re: replacing radiator fan and motor?

Originally posted by OneKrazyGuy
Anybody have any site that has a detail of how to change the radiator fan and motor under the intercooler (drivers side)? I have a 94 with a KOYO.

Thanks!
The come out the same way you put in your Koyo. Or did you put it in yourself? Either way, just be careful. I had to do this because one of mine went poof....took me a whole 30 minutes to disassemble, fix and reassemble!
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Old Jun 18, 2002 | 08:35 AM
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Originally posted by Johnny
Is the blitz IC still using the Oem ducting ?...I'm not too familiar with that IC.
Yes, the Blitz SMIC uses the stock ducting.
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Old Jun 18, 2002 | 08:40 AM
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Yeh, you do have to bend the lines more than you would want to. I wound up carefully cutting out the duct around the dryer once I got it out so next time I don't have to bend the lines. As long as you make a clean cut, it will line up properly when you put it back together. Other than that it is pretty easy except for the lower intercooler bolts which are hard to get to. Just be careful pulling out and putting in the fan assembly so you don't trash the radiator fins.
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Old Jun 18, 2002 | 09:37 AM
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You won't break the lines. I've moved mine twice without a problem. Don't wait - if the other fan dies you are screwed.
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Old Jun 18, 2002 | 12:02 PM
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Pull the intake(and stock cross-over piece), battery, then intercooler. You'll need the intake and battery out to get to the lower intercooler duct bolts (the ones under the intercooler facing the motor). The intercooler has 4 bolts total holding on the duct, 1 for the support cross-piece (near the hood latch), and 2 to the steering rack frame. Unbolt the AST. Unbolt the air cond dryer. I don't think the intake\intercooler duct is bolted down (except to the intercooler). When you try to remove the duct, you'll see it's impossible without bending the lines to the air cond dryer. Just bend carefully so not to kink it and just enough to pull out the duct. I did this so long ago I don't remember how many bolts hold down the fan shroud assembly, maybe 2-4? I think the bottom of shroud just fits into 2 rubber posts. There are 2 electrical connectors, 1 to each fan. I had to pull off the upper radiator hose since it was in the way so you'll lose some anti-freeze. Can't remember how many bolts hold the fans to the shroud(4?). It's pretty obvious when you have it off. Both motors are the same but one has 4 and the other 5 blades. I believe that was done to reduce harmonic vibration. If you pull the fan blades off use some Locktite on the motor shaft threads. I cut out the intercooler duct with tin snips around the air dryer so next time I have to pull the duct I don't have to disconnect or bend the dryer. Since I use the RB intake piece, I found out that it's a bad idea to silicon it together (can't get it apart to pull the intercooler duct). Now I use weatherstrip foam to seal the RB duct.

Last edited by rotary-tt; Jun 18, 2002 at 12:05 PM.
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Old Jun 18, 2002 | 04:12 PM
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From: N. Wilm., Delaware?
I believe the duct is too thick for scissors and that you don't have room to cut it out with it still on the car.
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