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Old 11-20-2019, 08:52 PM   #1
Lawrie
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Join Date: May 2010
Location: Qld, Australia
Posts: 3,328
Default 33 engine noise

Our 33 has an engine noise(not a mechanical noise), its a harmonic sort of a droning.
Its related to how much throttle I have on and as soon as I lift off a bit its gone,Its also worse when the eng is cold and a lot quieter when the engine is fully warmed up.
I have lined the floor and firewall with dynamat , this made it better inside the cabin,
the exhaust is a single system and a small stainless muffler that is about 6 inches in diameter and a foot or so long,it has always been on. the exhaust is not touching the chassis anywhere.
IDEAS ??
Lawrie
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