[AT] Kubota M5700 noise

[Dave Maynard]

Lifters have all been out and checked, ports are clear and internals are
free and valve lash is adjusted to spec. That is the very first thing we
did, and it has been rechecked each of the times we have had this engine
apart. I have used Rislone in it in the begining and oil was new when I got
it and have changed the oil and filter twice in the few hours of run time
it has seen.

Dave

On Sun, Apr 5, 2020, 8:53 AM Spencer Yost <spencer at rdfarms.com> wrote:

> Does this engine have hydraulic lifters?Sounds like sticking hydraulic
> lifters. I had an Isuzu trooper with the 3.5 L engine and these engines
> were notorious for developing sticking lifters.  Noise sounds very familiar
> and why I am guessing that.
>
> If I am right,It is harmless but annoying.  There are some techniques for
> minimizing this. I used to control it with seafoam in the engine oil right
> before an oil change - maybe 100 miles or so.  Then using a high-quality
> synthetic.  In addition I made very frequent oil changes.
>
> Spencer
>
> Sent from my iPhone
>
> > On Apr 4, 2020, at 3:10 PM, Dave Maynard <dave at themaplehillfarm.com>
> wrote:
> >
> > F2803
>
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