Question about installing C4 ac fan
Thread Starter
Race Director
Joined: Feb 2006
Posts: 12,239
Likes: 19
From: Chino CA
Question about installing C4 ac fan
Bought a fan and motor for a 96 vette...
Got the old assembly out this morning....not too difficult.
Here's my question....instead of making a spacer, can't I just in-large the second hole???
In the picture above you see the first large hole the fan goes through, then inside is a second smaller hole. The fan doesn't go all the way in because of the second smaller hole.
Cant I cut that bigger without ruining anything???!!!!!
Got the old assembly out this morning....not too difficult.
Here's my question....instead of making a spacer, can't I just in-large the second hole???
In the picture above you see the first large hole the fan goes through, then inside is a second smaller hole. The fan doesn't go all the way in because of the second smaller hole.
Cant I cut that bigger without ruining anything???!!!!!
Thread Starter
Race Director
Joined: Feb 2006
Posts: 12,239
Likes: 19
From: Chino CA
The new longer fan won't go in because it bottoms out against it.....
Race Director
Joined: Jan 2000
Posts: 12,399
Likes: 247
From: San Jose CA
That said, I'd space it out at the firewall and not mess with the inner hole. It probably wasn't designed to have air whipping around inside of it. In fact, that's likely where air is drawn in (from the center of the fan and out). Putting the fan inside would likely cause a reduction in air flow as you'd be creating turbulence there.
Race Director
Joined: Jan 2000
Posts: 12,399
Likes: 247
From: San Jose CA
I just chucked a C4 fan I have out in the garage up in my drill and gave it the old spinny spin. My theory seems correct; the fan draws air from the center (tested by pointing the assembly at a towel hanging on a rod). Regardless of direction spun, the fan directed air radially outwards from the blades and drew air towards the drill.
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