[AT] Kubota M5700 noise

[Dave Maynard]

Have cracked injector lines one at a time, and it gets quieter on #5. Have
tried all rocker arm by pushing like Cecil says, not there.
I've wondered about injection timing. Cam loves all look good with no wear
on injection pump cam. I understand that the gear is pressed on and could
have slipped, but wouldn't that affect all cylinders. Only mabey if
original cam had one lobe slightly at the edge of spec and gear slip made
it slightly more off enough to affect just one cylinder. Ya"ll see why I'm
tearing my hair out....and not that much to lose anymore...lol

Dave

On Sun, Apr 5, 2020, 8:53 PM Doug Tallman <dtallman at accnorwalk.com> wrote:

> I was wondering about injection timing too. Sounds like preignition. Doug T
> On 4/4/2020 3:52 PM, Moe Fretz wrote:
>
> typical noisy Kubota diesel.
> Possibly injection pump timing.
>
>
> $-------&
> Moe Fretz
>
> L'Orignal
> Ontario, Canada
>
>
> On Sat, Apr 4, 2020 at 3:10 PM Dave Maynard <dave at themaplehillfarm.com>
> wrote:
>
>> Hi everyone, got my 1st non antique non red tractor this summer. Kubota
>> 62 horse 4wd. Nice shape overall and a good price. However it makes a noise
>> that seller said dealer told him it was a lifter adjustment, but it turns
>> out not so. We have had this engine apart several times and cant find
>> anything wrong, bearings are all good, no broken rings, out of spec bores,
>> pistons all good.
>> At odds trying to figure this out, and dont want to destroy this engine
>> by running it too much. Just yesterday, replaced all the injectors and cups
>> with new as the sound is like a bad injector, but to no avail, noise is
>> still there. The engine is an F2803 5 cylinder which seems to be not as
>> common as most.
>> Does anyone know of any
>> Reputable dealers for used engines?
>>      I have attached a link to video where you can hear the noise. Any
>> and all suggestions and comments welcome.
>>
>> https://youtu.be/pMxOofbbJOA
>>
>> Thanks guys,
>> Dave Maynard
>> The Maple Hill Farm
>> Marion, NY
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