[AT] Kubota M5700 noise

[Roger Moffat]

> On Apr 5, 2020, at 9:59 PM, Dave Maynard <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
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.antique-tractor.com/pipermail/at-antique-tractor.com/attachments/20200405/010ea42a/attachment.htm>