[AT] Kubota M5700 noise

[Cecil Bearden]

That was one of my thoughts, but my experience has been that the liner 
movement was a double "thud" once on down stroke and once on upstroke.
Cecil

On 4/6/2020 1:12 AM, k7jdj at aol.com wrote:
> Cylinder liner loose.  Don't know if this engine even has cylinder 
> liners if it does and that liner is moving you would get click. Did 
> you look carefully at the head when you had it off and look for any 
> sign of head distress?
> I would do a compression check as well.
>
> Gary
>
> Renton, WA.
>
>
> -----Original Message-----
> From: Roger Moffat <rogerkiwi at gmail.com>
> To: Antique Tractor Email Discussion Group <at at lists.antique-tractor.com>
> Sent: Sun, Apr 5, 2020 7:43 pm
> Subject: Re: [AT] Kubota M5700 noise
>
>
>
>> On Apr 5, 2020, at 9:59 PM, Dave Maynard <dave at themaplehillfarm.com 
>> <mailto:dave at themaplehillfarm.com>> wrote:
>>
>> Have cracked injector lines one at a time, and it gets quieter on #5
>
> But only on #5?
>
> When you crack the others the engine misses, but the noise remains?
>
> I wonder if something about cylinder 5 is somehow different so that 
> the compression is higher, and so it’s igniting (pre-igniting) too 
> much before top dead centre in just that cylinder?
>
> Eg #5 piston slightly higher than the other 4?
>
> Roger
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