Why do our roofs rust out?
#1
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Car: 1992 Camaro RS, 66 Mustang, 78 t/a
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Why do our roofs rust out?
I just finished the other part of my roof rust problem last week with the A-pillar. But I have seen that it's pretty common with others of around this year in the exact same spot. I've even seen an earlier one with it too.
So, what makes them rust out in these specific spots?
So, what makes them rust out in these specific spots?
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Re: Why do our roofs rust out?
Not sure what your referring to. I've never seen roofs rusting. Only cracks at the top rear corner of the door window from body flex.
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Re: Why do our roofs rust out?
the roof is on top? it get bakes by the sun all day long and water sits on it, along with bird crap and everything else out there. Same with the hood and hatch, thats why the paint/clean fails there first. Once the paint is compromised, rust starts
as for the a-pillar, i usually only see that spot rot on t-tops cars, havent seen it in recent memory on a hard top car.
as for the a-pillar, i usually only see that spot rot on t-tops cars, havent seen it in recent memory on a hard top car.
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Re: Why do our roofs rust out?
I haven't seen any rust either. Mine has the body flex cracks and my other one is fine, only the clear coat is coming off. Pictures?
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Car: 1992 Camaro RS, 66 Mustang, 78 t/a
Engine: 5.0 TBI, 289, 400
Transmission: 700R4, C4, th350
Re: Why do our roofs rust out?
oh yea? how come it doesn't happen to the passenger side? and water doesn't even really sit in these spots.
I've only seen it on the driver side, and then all the way down the a-pillar.
I have pictures of mine.
I've only seen it on the driver side, and then all the way down the a-pillar.
I have pictures of mine.
Last edited by 92 Camaro; 07-05-2010 at 05:05 PM.
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Re: Why do our roofs rust out?
i havent seen it often on the passengerside either. Maybe its more on the driveside in those places because thats where people grab when getting in and out of the car, dirt and oils from your hands, plus just the wear on the paint could defiantly cause rust to start over time.
water sits on the top of the car, it will form beads and sit there. that "can" eventually cause problems, but it takes a long time.
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Car: 1992 Camaro RS, 66 Mustang, 78 t/a
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Re: Why do our roofs rust out?
good contributions. but I am still thinking there is something else to this.
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Re: Why do our roofs rust out?
I've heard it rusts from the inside-out. I have seen MANY Camaros like this. Maybe its caused through the driprail somehow?
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Re: Why do our roofs rust out?
I agree with this. Maybe a pin size hole and maybe temperature changes midday heat -> late night cool down + dew (if it sits outside) = condensation? under the panel... maybe??
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Car: 1992 Camaro RS, 66 Mustang, 78 t/a
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Re: Why do our roofs rust out?
yea I guess that wouldn't happen if the rust proofing was on their right.
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Re: Why do our roofs rust out?
I can testify to the "bird crap" theory...my son left my car outside uncovered for 2 weeks while I was out of town. washed all the birdy doo off, and most of the paint underneath it came off as well. The poop cost me a paint job
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Re: Why do our roofs rust out?
Ive seen more rust around the upper windshield corners. Even my spotless 92 had a bubble on the drivers side I had to grind out
#16
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Re: Why do our roofs rust out?
I bought my '91 t-top with the roof covered in surface rust. Cheap water-based primer had caused all the factory paint to flake off, and it had never been repainted. Also have a few faint spots around the windshield trim where rust is starting to develop. That shouldn't happen IMO to a car that's spent its whole life in GA and FL.
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Re: Why do our roofs rust out?
I bought my '91 t-top with the roof covered in surface rust. Cheap water-based primer had caused all the factory paint to flake off, and it had never been repainted. Also have a few faint spots around the windshield trim where rust is starting to develop. That shouldn't happen IMO to a car that's spent its whole life in GA and FL.
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Re: Why do our roofs rust out?
during the 80's especially the last half GM used really really craptastic waterbased paint. the clearcoat wasnt much better. the oem paint wasnt that much better than bare metal. when i had my formula repainted i had it taken to the metal. i was there when the paint ws removed off the hood and roof and the rust was really evident under what looked like solid paint. the paint actually came off in large flakes partway through sanding.
i would say to blame the greenies for forcing shtty paint on the public.
i would say to blame the greenies for forcing shtty paint on the public.
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Car: 1992 Camaro RS, 66 Mustang, 78 t/a
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Re: Why do our roofs rust out?
yea I've been aware of the crappy paint used in these years. My instructor actually told my class about when that was going on and he had so many cars to repaint.
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Re: Why do our roofs rust out?
I've got this exact same problem in the exact same area. Mine is rusting from the inside out as well.
#21
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Re: Why do our roofs rust out?
my rust spot.. i ground it out and filled it. i bet that part of the roof gets nicked more from people putting things on the roof, or grabbing the roof while wearing rings. it only takes one large nick to start the rust process
#22
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Re: Why do our roofs rust out?
My theory is it is rusting from the inside out(condensation etc,), where the spot welds are .
I have seen three 3rd gen cars rust along these same areas here in Texas . There is no way for it to rust out from the outside as all three cars had good paint and were not holding any water in the rusted out areas .
I have seen three 3rd gen cars rust along these same areas here in Texas . There is no way for it to rust out from the outside as all three cars had good paint and were not holding any water in the rusted out areas .
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Re: Why do our roofs rust out?
my roof is rusted out around the hinges for the hatch. is that a common location?
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