dmrider_10
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| posted on 11/8/14 at 09:07 AM |
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Resonance at certain RPMs?
Now I know 7 type cars arnt exactly rolls royces but the engineering side of my brain tells me something is going to get damaged if this continues.
Car: Haynes roadster, Ford I4 2l engine, on rubber engine mounts.
At around 3000rpm there is quite a harsh resonance sounding vibration. Above and below this the engine sound/feel is smooth and hollow sounding, but
between 2800/3200 rpm is sounds like the crank is connected directly to the chassis!
Has anyone experienced anything similar to this?
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mookaloid
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| posted on 11/8/14 at 09:18 AM |
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Is it whilst you are stationary or moving?
"That thing you're thinking - it wont be that."
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dmrider_10
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| posted on 11/8/14 at 09:19 AM |
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Either, while free revving or under load
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theprisioner
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| posted on 11/8/14 at 09:39 AM |
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This is common where you have a vvt engine, if you fit a fast road cam that makes it worse.
http://sylvabuild.blogspot.co.uk/2013/07/road-trials.html
http://sylvabuild.blogspot.com/
http://austin7special.blogspot.co.uk/
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