Pennock's Fiero Forum
  Technical Discussion & Questions
  Replacement radiator fan blade

Post New Topic  Post A Reply
Email This Page to Someone! | Printable Version


next newest topic | next oldest topic
Replacement radiator fan blade by Rsvl-Rider
Started on: 09-18-2014 09:19 PM
Replies: 13 (717 views)
Last post by: James Bond 007 on 09-21-2014 10:07 AM
Rsvl-Rider
Member
Posts: 1085
From: Sacramento, CA
Registered: Feb 2014


Feedback score:    (7)
Leave feedback

Rate this member

Report this Post09-18-2014 09:19 PM Click Here to See the Profile for Rsvl-RiderSend a Private Message to Rsvl-RiderEdit/Delete MessageReply w/QuoteDirect Link to This Post
I guess this California heat finally did in my radiator fan blade. Seems it got out of round and is now making a racket by rubbing up on the radiator. I put a few washers under the top left mounting screw and the noise is gone for now. I found a seller on Ebay but the part (ACDelco 15-8476 Radiator Fan) doesn't seem to be compatible with the 87-88 GT. Funny because it's listed to fit the 86 GT.

JC Whitney lists an AC Delco 15-8449 fan blade for the 88 GT but when I google search that number it comes back as the fan motor, not the blade. Confusing .

Is the fan blade different for the 87-88 GT? Does anyone have a good part number for it, or a source to obtain it? I couldn't find one at Fiero Store or Rodney's.

------------------
John Wayne as John Bernard Books in The Shootist...
" I won't be wronged. I won't be insulted. I won't be laid a-hand on. I don't do these things to other people, and I require the same from them."

My rides...
1988 GT with a 3.4L V6 automatic
2006 Harley Sportster
'cause I love the twisties on two wheels or four.

IP: Logged
PFF
System Bot
olejoedad
Member
Posts: 14175
From: Clarendon Twp., MI
Registered: May 2004


Feedback score: (5)
Leave feedback





Total ratings: 190
Rate this member

Report this Post09-18-2014 09:44 PM Click Here to See the Profile for olejoedadClick Here to Email olejoedadSend a Private Message to olejoedadEdit/Delete MessageReply w/QuoteDirect Link to This Post
An excellent opportunity to upgrade your fan as fierosound did.......sorry, no Linky.
Can someone else chime in with a link?
IP: Logged
Gall757
Member
Posts: 10651
From: Holland, MI
Registered: Jun 2010


Feedback score: N/A
Leave feedback





Total ratings: 88
Rate this member

Report this Post09-18-2014 10:07 PM Click Here to See the Profile for Gall757Send a Private Message to Gall757Edit/Delete MessageReply w/QuoteDirect Link to This Post
Could it be that increased movement in the motor shaft is the problem and not the fan itself? Worn bearings may allow the fan to hit the radiator.
IP: Logged
Rsvl-Rider
Member
Posts: 1085
From: Sacramento, CA
Registered: Feb 2014


Feedback score:    (7)
Leave feedback

Rate this member

Report this Post09-18-2014 11:24 PM Click Here to See the Profile for Rsvl-RiderSend a Private Message to Rsvl-RiderEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by Gall757:

Could it be that increased movement in the motor shaft is the problem and not the fan itself? Worn bearings may allow the fan to hit the radiator.


I don't think so. There didn't seem to be any floppiness in it and I could hear and feel it scrape as I rotated the fan by hand.

IP: Logged
DimeMachine
Member
Posts: 824
From: Eastern Metro, Minnesota, USA
Registered: Sep 2011


Feedback score: (1)
Leave feedback

Rate this member

Report this Post09-19-2014 08:17 AM Click Here to See the Profile for DimeMachineSend a Private Message to DimeMachineEdit/Delete MessageReply w/QuoteDirect Link to This Post
If all you need is the blade, I would get a used one from a forum member. Her in the colder states they last forever...

------------------
84/87 NB, 3800SC, E-85, VS Cam, 2.8 Pulley, 4T65E-HD, HP Tuners, AEM Wideband, Regal GS Gauges, S-10 Brake Booster. 1/4 mile -11.85 at 114mph

IP: Logged
Gall757
Member
Posts: 10651
From: Holland, MI
Registered: Jun 2010


Feedback score: N/A
Leave feedback





Total ratings: 88
Rate this member

Report this Post09-19-2014 09:35 AM Click Here to See the Profile for Gall757Send a Private Message to Gall757Edit/Delete MessageReply w/QuoteDirect Link to This Post
The upgrade by Fierosound

[This message has been edited by Gall757 (edited 09-19-2014).]

IP: Logged
fierosound
Member
Posts: 14501
From: Calgary, Canada
Registered: Nov 1999


Feedback score: N/A
Leave feedback





Total ratings: 280
Rate this member

Report this Post09-19-2014 10:03 AM Click Here to See the Profile for fierosoundClick Here to visit fierosound's HomePageClick Here to Email fierosoundSend a Private Message to fierosoundEdit/Delete MessageReply w/QuoteDirect Link to This Post
Sourmug posted a better step-by-step installation...

 
quote
Originally posted by Sourmug:

I have a small update.

I decided to upgrade my radiator fan to a high volume aftermarket fan. I don't need the extra cooling CFM that the aftermarket fan produces, as my 3.4 DOHC seems to sit more or less around the midpoint on the temerature gauge, but the look of the stock fan is a little on the dated side. The extra air flow is a bonus though!

I got the idea from Fierosound. Here's a link to his page:
http://www.fierosound.com/moreMODS.htm#Aftermarket Cooling Fan

The local speed shop that I went to didn't have the Proform Fan that Fierosound used so here's the 16" fan that I bought:





Here's the new fan with the stock fan and shroud:



To install the new fan the stock fan supports have to be cut at the shroud. I cut them so that there was some left over raised plastic that sat proud of the top of the shroud discharge ring. These bits will be sanded down flush after the fan supports are removed. Here the supports have been cut with a cutoff disc in the Dremel and the assembly removed:



The outside diameter of the aftermarket fan ring is just shlightly smaller that the inside of the stock fan ring. The two will fit in like they were made for each other. There are 4 mounting bracket points on the outside of the new fan that need to be removed:



I did this using and anglr grinder, sander and hand file:



Almost all of the marks will be hidden by the shroud once the new fan is in place.

I also wanted to trim the left over support base on the shroud to have a more rounded look. I used the sanding drum in my Dremel for this:





Then I painted the shroud:



To assemble, I ran a bead of poly-urethane around the outside of the new fan ring:



Then the shroud was placed over the fan and 4 small self tapping screws secured it together. I painted the few spots that needed some touch up on the new fan ring and the screws. Here it is installed:



Easy to do, and it`s an improvement over the looks of the stock fan for sure!

Nolan


------------------
Calgary time/temp

3.4L Supercharged 87 GT Click me
Super Duty 4 Indy #163 Click me

[This message has been edited by fierosound (edited 09-19-2014).]

IP: Logged
Rsvl-Rider
Member
Posts: 1085
From: Sacramento, CA
Registered: Feb 2014


Feedback score:    (7)
Leave feedback

Rate this member

Report this Post09-19-2014 11:58 AM Click Here to See the Profile for Rsvl-RiderSend a Private Message to Rsvl-RiderEdit/Delete MessageReply w/QuoteDirect Link to This Post
That's a really cool mod. I might have to try that.

In the meantime I am keeping my options open while I figure out the best way for me to go. It's my daily driver and I've got the California Coast Run coming up in a few weeks (about 600 miles round trip plus the Highway 1 coast run) so I have some routine maintenance to do first and I don't have much time for extra tinkering with the car between now and then

Does anyone know if the fan blade part was different for the 87-88 GT's?

Does anyone have a really nice direct replacement?

Thanks for the help
IP: Logged
TONY_C
Member
Posts: 2747
From: North Bellmore, NY 11710
Registered: May 2001


Feedback score: (2)
Leave feedback

Rate this member

Report this Post09-19-2014 01:40 PM Click Here to See the Profile for TONY_CSend a Private Message to TONY_CEdit/Delete MessageReply w/QuoteDirect Link to This Post
I was able to find a fan from a Toyota minivan at the junk yard and it adapted fairly easily. I can't remember what year it was from though. Another benefit with a newer fan is they tend to draw less current than the stock fan. Mine stock fan made a lot of noise, the magnets along the side of the motor worked loose and would make a terrible rattling noise.
IP: Logged
Rsvl-Rider
Member
Posts: 1085
From: Sacramento, CA
Registered: Feb 2014


Feedback score:    (7)
Leave feedback

Rate this member

Report this Post09-20-2014 03:19 PM Click Here to See the Profile for Rsvl-RiderSend a Private Message to Rsvl-RiderEdit/Delete MessageReply w/QuoteDirect Link to This Post
A bump for the weekend crowd. Still hoping for answers to these questions...


Does anyone know if the fan blade part was different for the 87-88 GT's?

Does anyone have a really nice direct replacement for sale?
IP: Logged
theogre
Member
Posts: 29384
From: USA
Registered: Mar 99


Feedback score: N/A
Leave feedback





Total ratings: 550
Rate this member

Report this Post09-20-2014 03:34 PM Click Here to See the Profile for theogreClick Here to visit theogre's HomePageSend a Private Message to theogreEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by Rsvl-Rider:
Does anyone know if the fan blade part was different for the 87-88 GT's?

could be...
AC or No AC could change fans.
You have non OE type or other type used on L4.
Ebay seller is wrong

------------------
Dr. Ian Malcolm: Yeah, but your scientists were so preoccupied with whether or not they could, they didn't stop to think if they should.
(Jurassic Park)


The Ogre's Fiero Cave (It's also at the top and bottom of every forum page...)

IP: Logged
PFF
System Bot
Rsvl-Rider
Member
Posts: 1085
From: Sacramento, CA
Registered: Feb 2014


Feedback score:    (7)
Leave feedback

Rate this member

Report this Post09-20-2014 03:57 PM Click Here to See the Profile for Rsvl-RiderSend a Private Message to Rsvl-RiderEdit/Delete MessageReply w/QuoteDirect Link to This Post
Yes, it is an AC car.

Here are a couple of pics if that helps...






 
quote
Originally posted by theogre:

could be...
AC or No AC could change fans.
You have non OE type or other type used on L4.
Ebay seller is wrong




IP: Logged
thesameguy
Member
Posts: 1414
From: California
Registered: Dec 2012


Feedback score: N/A
Leave feedback

Rate this member

Report this Post09-20-2014 07:15 PM Click Here to See the Profile for thesameguyClick Here to Email thesameguySend a Private Message to thesameguyEdit/Delete MessageReply w/QuoteDirect Link to This Post
Some quick looking suggests that there were two fan motors ("early" and "late") in addition to the AC/no AC variable, so it seems as reasonable as not '84-'86 is different from '87-'88. However, the radiators are all the same, so it seems you could swap complete fan assemblies if you wanted to do a wholesale replacement.
IP: Logged
James Bond 007
Member
Posts: 8745
From: California.U.S.A.
Registered: Dec 2002


Feedback score: (1)
Leave feedback





Total ratings: 263
Rate this member

Report this Post09-21-2014 10:07 AM Click Here to See the Profile for James Bond 007Send a Private Message to James Bond 007Edit/Delete MessageReply w/QuoteDirect Link to This Post
Your probubley going to want to replace the fan motor, along with the fan shroude. Seems like you might be missing a bolt or two, maybe the shroude is warped from the radiator heat?Try the mall section or go for the upgrade.
IP: Logged

next newest topic | next oldest topic

All times are ET (US)

Post New Topic  Post A Reply
Hop to:

Contact Us | Back To Main Page

Advertizing on PFF | Fiero Parts Vendors
PFF Merchandise | Fiero Gallery | Ogre's Cave
Real-Time Chat | Fiero Related Auctions on eBay



Copyright (c) 1999, C. Pennock