2000 RPM grind? 1990 1.6 NA

Engines, Transmissions & Final Drive questions and answers

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Dweezle
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2000 RPM grind?

Postby Dweezle » Wed Mar 18, 2009 7:59 am

It wouldn't be a Exhaust rattle would it?
when i first got my NA6 at 2000rpm it buzzed pretty loudly.. Turned out to be a loose heat shield..
Had it tacked back in place noise gone for good..
Also my alternator bolt was lose creating a rattle at the same rpm.
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JBT
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2000 RPM grind?

Postby JBT » Wed Mar 18, 2009 8:22 am

What model MX-5 is this from the range over the last 20 years?
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bruce
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2000 RPM grind?

Postby bruce » Wed Mar 18, 2009 10:55 am

It would be nice to know which model.

NAs had two minor things wrong with them - plug leads and exhaust heat shields. The shields would get loose and make a lovely zinging noise at a certain revs.

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philz
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2000 RPM grind?

Postby philz » Wed Mar 18, 2009 11:34 am

Hmm I'm getting that sound as well, at certain rpm, It's usually more distinct when I'm in 4th but at low revs.

Which exhaust headshields? the one near the cat?

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bruce
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2000 RPM grind?

Postby bruce » Wed Mar 18, 2009 11:41 am

Mine was the one just before the cat on the downpipe. It just got it tacked on, some guys just put a metal clamp on it.

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JSE
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2000 RPM grind? 1990 1.6 NA

Postby JSE » Fri Mar 20, 2009 10:53 am

exhaust heat shielding or clutch - if you have an aftermarket heavy duty clutch it may rattle with the 1.6 motors
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muzza2
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2000 RPM grind? 1990 1.6 NA

Postby muzza2 » Thu Apr 02, 2009 10:28 am

mine rattles.
i've got lock stewart extractors, stock car & sports exhaust from the cat back.
ever since i installed it i've had the rattle, removed all heat shields & replaced the muffler
after all that i've reduced the noise to 2600-2800 rpm & it generally doesnt do it in 1st gear
i sware its the extractors. its definatelly not hit / rattling on anything. its just their....

so, i wouldnt worry to much. unless you want to go back to a stock system


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