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Andy500

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Cheshire

12th May, 2009 at 12:54:49pm

Alright chaps,

What is it thats chatters/knocks in mini engines when they are on the point of stalling/at very low revs. I remember pretty much all of the engines ive had do it when at very low revs (just about to stall) Its espcially noticeable when the idle is set too low or mixture is wrong and the engine revs drop very very low and then it just about recovers.

Is it the timing chain?

PaulH

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Dublin Ireland

12th May, 2009 at 01:07:52pm

What you are hereing is presure waves accross the the top of the piston causing it to flutter in the bore, and the noise is it hiting the bore wall.

On 17th Feb, 2009 Rob H said:
I find the easiest way is to super glue the bolt to the end of one of my fingers.

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Tom Fenton
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Rotherham South Yorkshire

12th May, 2009 at 01:08:46pm

Also the drops chattering due to rough running.


On 29th Nov, 2016 madmk1 said:

On 28th Nov, 2016 Rob Gavin said:
 I refuse to pay for anything else


Like fuel 😂😂

Andy500

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869 Posts
Member #: 2443
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Cheshire

12th May, 2009 at 01:18:34pm

Cheers for the answers chaps. I know about the drops chattering and it wasnt those.
I only asked as ive heard it on a few engines before, standard and modified and was just curious as to what it was?

I take it thats it isnt particularly good for either the bore or piston.

PaulH

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Dublin Ireland

12th May, 2009 at 02:16:33pm

single biggest cause of ring failure

On 17th Feb, 2009 Rob H said:
I find the easiest way is to super glue the bolt to the end of one of my fingers.

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BENROSS

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Mitsi Evo 7, 911, Cossie. & all the chavs ...... won no problem

12th May, 2009 at 06:26:34pm

pinking or pre ignition fatal under boost for the pistons
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