Show full size 924Board.org
Discussion Forum of 924.org
 
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 
 Technical FAQ924 FAQ (Technical)   Technical924 Technical Section   Jump to 924.org924.org   Jump to PCA 924 Registry924 Registry

Replacement cooling fan

 
Post new topic   Reply to topic    924Board.org Forum Index -> 931 Tech.
View previous topic :: View next topic  
Author Message
bureau13  



Joined: 07 Sep 2017
Posts: 203
Location: South Florida

PostPosted: Sun Oct 21, 2018 4:26 am    Post subject: Replacement cooling fan Reply with quote

The while-you're-in-there parade has begun. I'm replacing my water pump (because even though I bought it, I stupidly decided not to do it about 9 months ago when I did the timing belt. Guess what has bad bearings and started leaking?). So I'm looking for a missing hose clamp from the water pump-to-thermostat hose (still haven't found it btw...it seems to have flown away) when I found a broken fan blade from the passenger side radiator fan (I am pretty sure that's the fan that comes on with the AC). So I guess I need a new fan, but I'm not sure what to get? My PET seems to show the fan cowl, but no fans. From looking at the motors, it seems the two fans are not identical. I don't care if the replacement is identical, but I'd like it to be a drop-in to the stock system, that performs as well or better.

Pelican for some reason shows several different pushers and pullers of different sizes and claims they're all compatible, which has to be nonsense...
_________________
-----------------------------------------
1982 931
1986.5 Silver 928S
2007 Hummer H3 (Daily Driver)

Past lives (I miss them all):
2004 RX-8 (Wrecked)
1993 RX-7 (Sold)
1987 RX-7 Turbo II (Sold)
1985 RX-7 GSL (Stolen)
Back to top
View user's profile Send private message
bureau13  



Joined: 07 Sep 2017
Posts: 203
Location: South Florida

PostPosted: Tue Oct 23, 2018 2:36 pm    Post subject: Reply with quote

How about this...does anyone know if the secondary fan (the one that comes on with AC) is equivalent to the single fan for non-AC cars? I THINK they're both single speed, right? As opposed to the dual speed (3-wire) primary fan on the AC cars?

I found what appears to be a 2-wire single-speed fan from a non-AC 924, so I'm wondering if I can swap that in for my AC fan.
_________________
-----------------------------------------
1982 931
1986.5 Silver 928S
2007 Hummer H3 (Daily Driver)

Past lives (I miss them all):
2004 RX-8 (Wrecked)
1993 RX-7 (Sold)
1987 RX-7 Turbo II (Sold)
1985 RX-7 GSL (Stolen)
Back to top
View user's profile Send private message
morghen  



Joined: 21 Jan 2005
Posts: 8127
Location: Romania

PostPosted: Tue Oct 23, 2018 5:26 pm    Post subject: Reply with quote

Yes, that second fan is single speed.
As far as i remember only the first fan will be turned on at low speed with the engine off if the coolant temp is high enough.
_________________
Ruby-sh 924
Back to top
View user's profile Send private message Visit poster's website Yahoo Messenger MSN Messenger
bureau13  



Joined: 07 Sep 2017
Posts: 203
Location: South Florida

PostPosted: Wed Oct 24, 2018 1:56 am    Post subject: Reply with quote

I should have pulled it out to get ready and looked for part numbers I suppose. If it turns out to be the same as the one the guy is selling, I'll know for sure.

I don't think there are any differences between NA and Turbo here, are there? Just between AC and no AC?
_________________
-----------------------------------------
1982 931
1986.5 Silver 928S
2007 Hummer H3 (Daily Driver)

Past lives (I miss them all):
2004 RX-8 (Wrecked)
1993 RX-7 (Sold)
1987 RX-7 Turbo II (Sold)
1985 RX-7 GSL (Stolen)
Back to top
View user's profile Send private message
bureau13  



Joined: 07 Sep 2017
Posts: 203
Location: South Florida

PostPosted: Tue Oct 30, 2018 1:09 am    Post subject: Reply with quote

Interesting observation. I pulled the whole dual fan shroud out, and the opening for the primary fan (and presumably the fan itself) is very slightly bigger than the AC fan. Hard to measure the AC fan though...I currently only have one blade! Yikes...)
_________________
-----------------------------------------
1982 931
1986.5 Silver 928S
2007 Hummer H3 (Daily Driver)

Past lives (I miss them all):
2004 RX-8 (Wrecked)
1993 RX-7 (Sold)
1987 RX-7 Turbo II (Sold)
1985 RX-7 GSL (Stolen)
Back to top
View user's profile Send private message
Display posts from previous:   
Post new topic   Reply to topic    924Board.org Forum Index -> 931 Tech. All times are GMT + 11 Hours
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum


Powered by phpBB © 2001, 2005 phpBB Group