[AT] Kubota M5700 noise

[Mike M]

Have you by any chance performed a compression test, and a leak down test?

Mike M


On 4/5/2020 10:42 PM, Roger Moffat wrote:
>
>
>> 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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