[AT] Kubota M5700 noise

[Roger Moffat]

What happens to the noise if you have it running, and then one at a time crack the fittings of the injector pipes on the injector pump?

Does the noise go away on any one pipe? Does it alter pitch or change in any way?

Roger

> On Apr 5, 2020, at 6:12 PM, Dave Maynard <dave at themaplehillfarm.com> wrote:
> 
> Fuel was just put in a few days ago.
> 
> On Sun, Apr 5, 2020, 4:18 PM Mike M <meulenms at gmx.com <mailto:meulenms at gmx.com>> wrote:
> Long shot here, but what's the quality of the fuel, and how long has it been in there?
> 
> Mike M
> 
> 
> On 4/5/2020 3:10 PM, Dave Maynard wrote:
>> 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 <mailto: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 <mailto:dave at themaplehillfarm.com>> wrote:
>> > 
>> > F2803
>> 
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