Is this common.
Thread Starter
Cruising
Joined: May 2009
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Is this common.
Looks like quarter size spots or where rivets are coming thru on the hood and nose of the 72 Blue Coupe. They are evenly spaced on the front end of the hood and on the nose clip and are really noticable, car does have original paint. Thanks for your help, Mike
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From: Just because I'm paranoid doesn't mean people aren't out to get me...
St. Jude Donor '09
Burning Brakes
Joined: Aug 2004
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From: roanoke va
It is alum. rivets that are corroding (white powder). They used the rivets to hold the metal header bar to a fiberglass bonding strip and the strip was bonded to the header panel. There has been a lot of post on this problem here. I redid mine by removing the header bar and using new rivets and applied zinc oxide primer to the rivets to make sure they did not corode again. A lot of people just removed the rivets and bonded the bar directly without the rivets.
Some poeple used a whole saw to drill out the rivets from the top and then fill in the holes. I don't know about this because shrikage could cause the repair to show up in time.
If the paint is ok leave it be for now and repar it when it is time for paint.
Some poeple used a whole saw to drill out the rivets from the top and then fill in the holes. I don't know about this because shrikage could cause the repair to show up in time.
If the paint is ok leave it be for now and repar it when it is time for paint.
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
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Drifting
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From: Melbourne Australia
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
Drifting
Joined: Jul 2000
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From: Melbourne Australia
Novas well Len, ain't been doing to much to it lately as it's been irking me a bit
Not sure if I told you but i bought a 67 Chevelle SS and it was taking up a bit of my time......till it bored me(due to no funds )...... and now I have my Vette home(I can only fit 2 cars in) from my mates place(it's been there for 3 years ) and have been doing some work to it, as much as I can while waiting for vendors to send me stuff that they have on back-order Do vendors actually stock parts anymore 
Nice to hear from you Len
Sorry for the hijack mikeall
Thread Starter
Cruising
Joined: May 2009
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Novas well Len, ain't been doing to much to it lately as it's been irking me a bit Not sure if I told you but i bought a 67 Chevelle SS and it was taking up a bit of my time......till it bored me(due to no funds )...... and now I have my Vette home(I can only fit 2 cars in) from my mates place(it's been there for 3 years ) and have been doing some work to it, as much as I can while waiting for vendors to send me stuff that they have on back-order Do vendors actually stock parts anymore
Nice to hear from you Len
Sorry for the hijack mikeall
Not sure if I told you but i bought a 67 Chevelle SS and it was taking up a bit of my time......till it bored me(due to no funds )...... and now I have my Vette home(I can only fit 2 cars in) from my mates place(it's been there for 3 years ) and have been doing some work to it, as much as I can while waiting for vendors to send me stuff that they have on back-order Do vendors actually stock parts anymore Nice to hear from you Len
Sorry for the hijack mikeall
Team Owner
Joined: Sep 2006
Posts: 31,170
Likes: 4,248
From: Westminster Maryland
Hi Mike,
On occasion the bumps can be seen even if there is no rust. The fiberglass shrinks after 35+ years and the rivet heads show. Fiberglass is an odd material to make a car body out of.
Regards,
Alan
A little body work but no rust.
On occasion the bumps can be seen even if there is no rust. The fiberglass shrinks after 35+ years and the rivet heads show. Fiberglass is an odd material to make a car body out of.
Regards,
Alan
A little body work but no rust.
Le Mans Master
Joined: Dec 2003
Posts: 5,727
Likes: 38
From: Fremont CA
Caused by electrolysis between aluminum rivets and steel header panel used to hold headlamp assemblies in the car. The header was riveted to a piece of fiberglass bonding material and over the years electrolysis causes corrosion of the rivets to displace them and cause the unsightly "warts" you are now seeing. My 72 LT-1 has just contractd this disease.
Le Mans Master
Joined: Jun 2005
Posts: 5,447
Likes: 3
From: Syracuse NY
I've seen a few on the nose, but I've never seen this on a hood.
Thread Starter
Cruising
Joined: May 2009
Posts: 10
Likes: 0
Thread Starter
Cruising
Joined: May 2009
Posts: 10
Likes: 0
Caused by electrolysis between aluminum rivets and steel header panel used to hold headlamp assemblies in the car. The header was riveted to a piece of fiberglass bonding material and over the years electrolysis causes corrosion of the rivets to displace them and cause the unsightly "warts" you are now seeing. My 72 LT-1 has just contractd this disease.
Thread Starter
Cruising
Joined: May 2009
Posts: 10
Likes: 0
Thread Starter
Cruising
Joined: May 2009
Posts: 10
Likes: 0
It is alum. rivets that are corroding (white powder). They used the rivets to hold the metal header bar to a fiberglass bonding strip and the strip was bonded to the header panel. There has been a lot of post on this problem here. I redid mine by removing the header bar and using new rivets and applied zinc oxide primer to the rivets to make sure they did not corode again. A lot of people just removed the rivets and bonded the bar directly without the rivets.
Some poeple used a whole saw to drill out the rivets from the top and then fill in the holes. I don't know about this because shrikage could cause the repair to show up in time.
If the paint is ok leave it be for now and repar it when it is time for paint.
Some poeple used a whole saw to drill out the rivets from the top and then fill in the holes. I don't know about this because shrikage could cause the repair to show up in time.
If the paint is ok leave it be for now and repar it when it is time for paint.