Strange Engine Sound...

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Boags
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Strange Engine Sound...

Postby Boags » Fri Mar 16, 2007 12:35 pm

Hi guys,

I've developed a strange whistle coming from the intake somewhere.

It starts from about 2000rpm and gets louder the further down my right foot is. I'm guessing it's got something to do with vacuum, any ideas?

I'll post some pics of where it is coming from later on.

Boags :)
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Postby Juffa » Fri Mar 16, 2007 2:10 pm

A leak in the intake will usually show up as rough idle....are you getting that?

Did someone install a SC while you weren't looking. :P

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Re:

Postby Boags » Fri Mar 16, 2007 2:20 pm

Juffa wrote:Did someone install a SC while you weren't looking. :P


No rough idle, and no SC... :wink:

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Postby Boags » Fri Mar 16, 2007 3:17 pm

Could an exhaust blockage cause a whistle?
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Postby bruce » Fri Mar 16, 2007 3:21 pm

short nose crank ? :mrgreen:
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Re:

Postby Boags » Fri Mar 16, 2007 4:06 pm

bruce wrote:short nose crank ? :mrgreen:


:? Before anyone asks, yes, the car has half a tank of fuel...
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Postby adamjp » Fri Mar 16, 2007 4:27 pm

One of the hoses on top of the inlet manifold that bleeds vaccuum off to help the engine. Possible crack or simply come 'off' the spigot it shoud be on.

If you can hear it whilst driving I suggest brake booster or heater control unit (are these vaccuum operated on an MX5?).
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Postby GP » Fri Mar 16, 2007 5:33 pm

Last time I had a loud whistle from an engine it was a burnt exhaust valve.
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Postby orx626 » Fri Mar 16, 2007 5:43 pm

:idea: Maybe a hairdryer got stuck between the head and the dump pipe :?: :!:
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Postby Fatty » Fri Mar 16, 2007 5:57 pm

yes orx626, i reckon his girlfreind accidently dropped her hairdryer in there.

pics please!!
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Postby JBT » Fri Mar 16, 2007 6:36 pm

I'm gonna tell his Mum :mrgreen:
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Postby StanTheMan » Fri Mar 16, 2007 6:38 pm

yea i was wondering about that.......what happent about that revelation of using imperial or metric with Captain Tool.


does seriously sound like a Turbo to me.....
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Re: Strange Engine Sound...

Postby NMX516 » Fri Mar 16, 2007 6:49 pm

Boags'MX5 wrote:Hi guys,

I've developed a strange whistle coming from the intake somewhere.

It starts from about 2000rpm and gets louder the further down my right foot is. I'm guessing it's got something to do with vacuum, any ideas?

I'll post some pics of where it is coming from later on.

Boags :)


:D :D 8) 8) Looking forward to seeing the pics!
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Postby sabretooth » Fri Mar 16, 2007 8:57 pm

Perhaps some leaky fridge seals on that whitegood of yours? :p
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Postby Andrew » Fri Mar 16, 2007 9:43 pm

link Whooo whoooooo :shock:
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