Cooling Fan cracks,... Repair?
Thread Starter
Racer
Joined: Feb 2011
Posts: 434
Likes: 0
From: Chester County, PA
Cooling Fan cracks,... Repair?
I did a little searching here and couldn't find what I was looking for ,... So I'll ask.
Can a cooling fan/alternator fan be repair?
I have tiny airline cracks at the blades where it joins with the center of the fan, is this a meterial that could be welded,.. or epoxied,... sorry if this is dumb for some,... but with the price of a new one $450++, I would rather find a fix for it.
Thanks
Can a cooling fan/alternator fan be repair?
I have tiny airline cracks at the blades where it joins with the center of the fan, is this a meterial that could be welded,.. or epoxied,... sorry if this is dumb for some,... but with the price of a new one $450++, I would rather find a fix for it.
Thanks
Rennlist Member
Joined: Dec 2003
Posts: 7,211
Likes: 490
From: NC
I have a couple small cracks on my fan also. My mechanic marked the ends of the cracks with a permanent marker so I can keep track and see if the crack spreads. The mechanic wasn't worried and the crack hasn't spread.
IHI KING!
Rennlist Member
Rennlist Member
Joined: Aug 2001
Posts: 13,400
Likes: 230
From: Nashua, New Hampshire, USA
Mine had cracks too. The fan is made out of magnesium. I didn't want to take the chance of failure so I replaced mine with a new one. Yes, the cost is painful. I would talk to your local welding shops to see if they are willing to weld it.
Drifting
Joined: Aug 2010
Posts: 2,274
Likes: 3
I think it is too high of liablility to try and repair for a $450 part.
I guess you could possible weld it, not sure if it is mag or alu though, and there are some issues with welding: warpping, heat, and making brittle around the weld.
And, then there is the issue of re-balance.
I guess you could possible weld it, not sure if it is mag or alu though, and there are some issues with welding: warpping, heat, and making brittle around the weld.
And, then there is the issue of re-balance.
Nordschleife Master
Joined: Jul 2007
Posts: 5,613
Likes: 52
From: DFW, TX
I think rebalance would be the biggest issue w/ welding.
Mine is/was total ****. Check it out.
https://rennlist.com/forums/964-foru...n-removal.html
I'm currently replacing it w/ a used, but structurally sound, fan that I picked up for a fraction of the new cost. The replacement is currently getting powder coated.
The old fan is going to a RL member who called dibs. I'm not sure what he plans to do w/ it.
Mine is/was total ****. Check it out.
https://rennlist.com/forums/964-foru...n-removal.html
I'm currently replacing it w/ a used, but structurally sound, fan that I picked up for a fraction of the new cost. The replacement is currently getting powder coated.
The old fan is going to a RL member who called dibs. I'm not sure what he plans to do w/ it.
Nordschleife Master
Joined: Jul 2007
Posts: 5,613
Likes: 52
From: DFW, TX
The fans can fail suddenly and catastrophically.
https://rennlist.com/forums/993-foru...e-engines.html
https://rennlist.com/forums/993-foru...e-engines.html
Thread Starter
Racer
Joined: Feb 2011
Posts: 434
Likes: 0
From: Chester County, PA
Wow,.. I followed the link that were posted of fan failiure, and they made mine look brand new.
I just have tinny airline cracks approx. 2 cm long on only two blades towrd the center. I've try to insert a feeler gauge, and my .25mm can't fit in. I may just have it blasted and powder coated,... it might hold better together with new paint on...
I just have tinny airline cracks approx. 2 cm long on only two blades towrd the center. I've try to insert a feeler gauge, and my .25mm can't fit in. I may just have it blasted and powder coated,... it might hold better together with new paint on...
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Race Car
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From: Blue Ridge Mountains NC.
I have a 964 fan that was damaged. The shroud cracked at the alternator (belts to tight) and allowed the blades to contact the shroud but was not in pieces. The whole assembly was replaced and I held onto the fan and shroud with the idea that I will make a wall clock for the garage. The fan has 12 blades.
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From: NC
Thread Starter
Racer
Joined: Feb 2011
Posts: 434
Likes: 0
From: Chester County, PA
Thanks 911Jetta, thats kinda what I wanted to hear. I'll keep an eye on mine.
For those looking at a cheaper fan here is one:
http://www.einmaligparts.com/Fan-Eng..._p_145754.html
For those looking at a cheaper fan here is one:
http://www.einmaligparts.com/Fan-Eng..._p_145754.html
