They had all kinds of problems when new.
Rubbing upper radiator hose
Race Director
Joined: Nov 2002
Posts: 12,142
Likes: 54
From: Taylor Michigan
Easy Solution
Drifting
Joined: Apr 2007
Posts: 1,970
Likes: 45
From: Cameron Park CA
I have to say you either have the incorrect hose, or it needs to be rotated to clear the alternator brace, and any other interference spots. Photos of my '69 with original aluminum radiator, stock alternator brace, etc.
This shows the clearance between the hose and the alternator brace:
I hope this helps!
Pete
This shows the clearance between the hose and the alternator brace:
I hope this helps!
Pete
Le Mans Master
Joined: May 1999
Posts: 6,692
Likes: 29
From: Texas
Did same thing plus put a very big plastic flex thing around area of hose also. Not problem.
Team Owner
Joined: Jul 1999
Posts: 26,545
Likes: 46
From: Huntersville NC
My upper radiator hose makes contact with the shroud. I will post a pic later. I have stuck on some sticky insulation to prevent damage to the hose. I really like that soup can idea!
Here is my point of contact. My shroud is probably wrong...
Here is my point of contact. My shroud is probably wrong...
Last edited by PRNDL; Mar 26, 2011 at 12:22 PM.
Team Owner
Joined: Jul 1999
Posts: 26,545
Likes: 46
From: Huntersville NC
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Brett Foote
Safety Car
Joined: Jun 2004
Posts: 4,652
Likes: 80
From: Lakeland Florida
It seems like the hose can be twisted away from the point of contact, and then clamped down on the thermostat housing, and or the upper radiator connection. This should allow the arc of the hose shape bend to be positioned away from the point of contact.
kdf
kdf
Drifting
Joined: Apr 2007
Posts: 1,970
Likes: 45
From: Cameron Park CA
I have to say you either have the incorrect hose, or it needs to be rotated to clear the alternator brace, and any other interference spots.
Come on guys, these cars didn't have problems like this when they were new, they just got mistreated, or shade tree fixed, or Bubba got loose on them and screwed things up royally!
Pete
Race Director
Joined: Nov 2002
Posts: 12,142
Likes: 54
From: Taylor Michigan
Loosen the hose at the water outlet and twist the hose counter clockwise and see if that helps.......or go the other way at the other end...
Senior Member since 1492
Joined: Aug 2000
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From: Just because I'm paranoid doesn't mean people aren't out to get me...
St. Jude Donor '09
Team Owner
Joined: Jul 1999
Posts: 26,545
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From: Huntersville NC
Le Mans Master
Joined: Jan 2001
Posts: 6,728
Likes: 1,379
I had the same problem on my '68
I ended up buying a hose from a 77 and it didn't rub anywhere. I did have to shorten it about 1/2" but it fit great. I've changed my engine and radiator since, but it's still the same upper hose. I mention this because you can see a picture under "my covette pics" off to the left.
It's cheap to check and might solve your problem
It's cheap to check and might solve your problem
Last edited by carriljc; Mar 27, 2011 at 12:33 PM. Reason: checked on hose year = 77
Instructor
Joined: Jun 2010
Posts: 111
Likes: 2
From: Warren Ohio
Sometimes an upper radiator hose that starts rubbing when it didn't before, could be caused by failing front motor mounts. That happened to my with a '68 427. Changed the mounts - problem solved.
Le Mans Master
Joined: May 1999
Posts: 6,692
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From: Texas
Instructor
Joined: Apr 2004
Posts: 201
Likes: 1
From: Taunton Ma
I had the same issue and i talked to someone who regularly works on C2's and C3's. He told me I needed a thermostat housing spacer. It raises the Thermostat housing some where between a quater to half an inch. But it was enough to clear everything. He said they used them on some big block cars. Corvette Central has them for 30 bucks. Worked for me.
