Metalling rattling after exhaust install (90 fc)
#1
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Metalling rattling after exhaust install (90 fc)
We've recently installed the Racing Beat full exhaust (header+presilencer+Catback) on the 90 NA Rx7 and something interesting is happening...
Whenever we rev the car, there is a very loud metallic rattle. This only occurs when revving the car with the clutch pressed in. When in gear, even at WOT, no rattling is heard.
We removed the heat shields and did not add any new ones, so we don't think this is it.
What do y'all think?
Whenever we rev the car, there is a very loud metallic rattle. This only occurs when revving the car with the clutch pressed in. When in gear, even at WOT, no rattling is heard.
We removed the heat shields and did not add any new ones, so we don't think this is it.
What do y'all think?
#3
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#5
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Last time I was down there I noticed the hangers/bushings by the y pipe were all dry, and it was loose and it made a loud noise when hit with the rubber mallet. I purchased new ones and I'll install them today.
In case that wasn't it, it won't hurt to check the o2 sensor.
I'll update this thread if anything changes.
#6
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So yesterday I had both the Y-pipe hangers replaced with brand new ones and I pushed some of the heat shielding away from any pipes and it looks like all the rattling is not gone.
On the heat shields I saw no signs of damage, so I don't think it is it.
The screech happens louder once the car is warmed up. I'll post a video with the sound soon.
On the heat shields I saw no signs of damage, so I don't think it is it.
The screech happens louder once the car is warmed up. I'll post a video with the sound soon.
Last edited by carsebuco; 07-27-20 at 02:35 PM.
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#9
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I'll try that next and see how it goes lol
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