Upper Radiator Hose Replacement for Idiots - 78
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Joined: Aug 2009
Posts: 58
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From: Fishers IN
Upper Radiator Hose Replacement for Idiots - 78
I need to replace the upper radiator hose on my 78 and it seems like a pretty straight forward job. Drain coolant, remove old hose, put on new hose, fill with coolant, and "burp" the system. I'm fairly handy, but not a trained mechanic by any stretch of the imagination. (And, I'm an engineer, which probably makes things worse.) 
Any tips, tricks, or pitfalls to look out for?
Any tips, tricks, or pitfalls to look out for?
Team Owner
Joined: Aug 1999
Posts: 30,995
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From: Ontario
Check placement for fan/alternator belt clearance. Twist/adjust as necessary. That belt can cut through a hose very quickly.
You may have a belt guard which helps. My 1974 does not unfortunately.
You may have a belt guard which helps. My 1974 does not unfortunately.
Last edited by Paul L; Sep 23, 2009 at 09:07 AM.
Safety Car
Joined: Aug 2001
Posts: 4,883
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From: North Easton Mass
You might want to order a hose from one of the Vette vendors like Dewitt's or Zip to make sure you get one that fits. I had no luck at the AutoZone and Advance Auto stores in my area. The part number they listed may have fit some years but it wasn't the right one for my 72. Bring your old hose with you if you go shopping locally.
Rick B.
Rick B.
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Joined: Jan 2006
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From: Crossville TN
If it has been several years since the thermostat was changed, putting in a new stat and gasket would be a good thing to do. Clean old surfaces well, install stat, then put a light wipe of Permatex gasket sealer on both side of the gasket & install it, then button it up (25 ft-lbs on the bolts). 
Thread Starter
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Joined: Aug 2009
Posts: 58
Likes: 3
From: Fishers IN
Thanks for the help guys. I got a new hose from Napa and it seems to line up well with the old one. Not sure when the Thermostat was changed, but I will look into that as well. Good call...
