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tberger06
12-22-2015, 08:39 PM
While I was driving to work today, I noticed my car was shaking more than normal. I parked and the entire car would rumble/shake at a steady speed regardless of engine rpm...so it couldn't be the engine causing it. I popped the hood and heard a rubbing/scraping sound, and it turns out the culprit was the radiator fan. You can see it wobbling a bit and rubbing on the shroud or something. Then it got really bad as I was recording this video.

https://www.youtube.com/watch?v=a95pZLRE3KM

It seems there is a lot of play between the fan and the fan motor. When I turn the fan by hand, it takes a bit of effort to turn...at least it seems like it should spin easier. Should I get a new fan? New fan motor? Both? Where's the best place to buy them? Thanks.

james5275
12-22-2015, 09:08 PM
Wow your timing couldn't have been any better shooting the vid. 1 of 2 possibilities :
1. The motor bearings failed.
2. The fan blade /motor shaft interference fit wore out.
My bet is #2
Piece of cake to fix. Pretty sure a lot of assemblies are still out there.

JJ

KMT
12-22-2015, 09:11 PM
3. The retainer that keeps the fan on the shaft went away.

R & R the fan assembly and checks things out in any case. Whatever the issue, it should be evident once you get the whole thing out of the car.

tberger06
12-23-2015, 06:32 PM
uh how do I take the fan blades off?? I removed the retainer clip but this is all the farther it will go. Using a BFH didn't help.
https://farm2.staticflickr.com/1692/23825475312_e61d38142a_c.jpg (https://flic.kr/p/CinMK7)

KMT
12-23-2015, 06:43 PM
Push it back on and then use a file/sandpaper to dress/clearance the end of the shaft until you can remove the fan.

tberger06
12-23-2015, 08:08 PM
After expending way too much effort to finally get the fan blades off...I've determined the motor was starting to grenade its internals. Lots of black dust/powder, some of the magnets had chunks broken off, and the shaft had a lot of play.

Now the question is should I get a replacement motor (e9sf-8k621-ba) or get a new assembly? Are there any good aftermarket radiator fans/motors or is the stock fan & motor good enough?

KMT
12-23-2015, 08:17 PM
What year?

tberger06
12-23-2015, 08:25 PM
What year?

It's an 89 XR7, so anything that fits 89-93 correct?

KMT
12-23-2015, 08:46 PM
It's an 89 XR7, so anything that fits 89-93 correct?


Right - just be aware of the shaft length.

This thread is for later models, but you get the idea:
http://www.sccoa.com/forums/showthread.php?136597-94-95-radiator-fan-motor-failure-amp-replacement-thoughts&highlight=fan+motor+shaft+wrong

tberger06
12-30-2015, 09:41 PM
I ordered this new motor from RockAuto (ACDELCO 1580064) (https://www.rockauto.com/catalog/moreinfo.php?pk=437120&cc=1440851). It fits perfectly with the stock fan and shroud. I still need to mount it in the car and make sure it works properly.

KMT
12-30-2015, 09:50 PM
I ordered this new motor from RockAuto (ACDELCO 1580064) (https://www.rockauto.com/catalog/moreinfo.php?pk=437120&cc=1440851).

Can I ask the cost?

tberger06
12-30-2015, 10:04 PM
Can I ask the cost?

It was $41.49 including FedEx ground shipping.

KMT
12-30-2015, 10:44 PM
It was $41.49 including FedEx ground shipping.

Sounds like a deal, thanks. Might be time to order one up for my car and put it on the shelf.

What about the wiring/connector?

tberger06
12-30-2015, 11:51 PM
Sounds like a deal, thanks. Might be time to order one up for my car and put it on the shelf.

What about the wiring/connector?

The connector is the same and the wiring is actually longer.
https://farm2.staticflickr.com/1677/23450296333_04a2f9bf32_z.jpg (https://flic.kr/p/BJdU72)

KMT
12-30-2015, 11:53 PM
Great news on the connector, thanks.

tberger06
01-01-2016, 05:01 PM
I put the fan & shroud back in the car today and didn't run into any issues. Everything fits, connects up, and works properly. The car is running like a champ.