cracking at the firewall and b-pillar?
11-26-2004, 04:52 PM
#2
Team Owner
good question.
The problem is a structural one. Very common if one runs without the top for extended time periods.
The b-pillar area, right where the pillar meets the rear fender, by the corner of the hatch, is prone to cracking.
So is the a-pillar and firewall areas.
To fix this, they added metal to those areas.
The cause? When they designed the C4, it was not supposed to have an open roof. Marketing came down and told McClellen, "take out the bar!" McClellen said, "can do that, give me money!", bean counters said, "no money, make it happen... or else."
McClellen made it happen... thats why the sills/rocker panels are SO tall.
However, the firewall still flexed and canterlevered against the floor, this is what caused the cracks.
Some reinforcements later on fixed the problem... but never fixed the flexing problem.
The problem is a structural one. Very common if one runs without the top for extended time periods.
The b-pillar area, right where the pillar meets the rear fender, by the corner of the hatch, is prone to cracking.
So is the a-pillar and firewall areas.
To fix this, they added metal to those areas.
The cause? When they designed the C4, it was not supposed to have an open roof. Marketing came down and told McClellen, "take out the bar!" McClellen said, "can do that, give me money!", bean counters said, "no money, make it happen... or else."
McClellen made it happen... thats why the sills/rocker panels are SO tall.
However, the firewall still flexed and canterlevered against the floor, this is what caused the cracks.
Some reinforcements later on fixed the problem... but never fixed the flexing problem.
11-26-2004, 08:17 PM
#5
Team Owner
Originally Posted by Bilyk
What cracks? the metal or the fiberglass?
There are a few tiny hair fractures in the fiberglass on my 85 around the roof area
There are a few tiny hair fractures in the fiberglass on my 85 around the roof area
