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#4608835 - 12/19/17 09:52 PM Onan 8000/ kubota - 160+ hours 10K miles
UncleDave Offline


Registered: 06/02/14
Posts: 1636
Loc: Ca.
Feels to me like I can easily hit 200, if not 250-300 hours with this combo.

Any guesses to where the condemnation point will be?

UD


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Uncle Dave
Cat 3126/2 MB3500/Titan/RX400H/17 Ridgeline
700HP V10/ 725HP BBC/ Raptor 700/ KFX450/ YZ250/Onan 8K/ Cat3011C

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#4608840 - 12/19/17 10:00 PM Re: Onan 8000/ kubota - 160+ hours 10K miles [Re: UncleDave]
UncleDave Offline


Registered: 06/02/14
Posts: 1636
Loc: Ca.
This genset is a very youthful 5 years and 4750 ish hours on it.

if it were an auto running At the equivalent of 60 MPH it would be @ 285,000 miles now.

it has been maintained faithfully to onan spec until now- we will start extending the OCI as per the data set available.

UD
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Uncle Dave
Cat 3126/2 MB3500/Titan/RX400H/17 Ridgeline
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#4608846 - 12/19/17 10:10 PM Re: Onan 8000/ kubota - 160+ hours 10K miles [Re: UncleDave]
Colt45ws Offline


Registered: 08/15/06
Posts: 9638
Loc: Central Washington
Youll have issues with the gen head bearings/brushes, etc before this motor wears out.
I see its a little D722. Is it one of those setups where they have the diesel running at governed RPM of 3000 and a serpentine belt to overdrive the generator to 3600RPM?
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2002 Ford Crown Vic PI 207k, Ex-Kootenai County, ID Unit #42
Down for engine swap
2003 Ford Crown Vic PI 75k
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#4608848 - 12/19/17 10:13 PM Re: Onan 8000/ kubota - 160+ hours 10K miles [Re: UncleDave]
UncleDave Offline


Registered: 06/02/14
Posts: 1636
Loc: Ca.
Its a brushless design (unlike my powertech 8K I just redid the electrical end at 2K hours)

No- Its a variable RPM inverter unit that never runs 3600 RPM more like 1800 to 2500 Rpm when it runs.

after having multiple gasoline units die from simply being worn out Im curious to see what the multiplier really is on the kubota.


UD


Edited by UncleDave (12/19/17 10:16 PM)
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Uncle Dave
Cat 3126/2 MB3500/Titan/RX400H/17 Ridgeline
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#4608851 - 12/19/17 10:18 PM Re: Onan 8000/ kubota - 160+ hours 10K miles [Re: UncleDave]
Linctex Offline


Registered: 12/31/16
Posts: 6148
Loc: Waco, TX
I know of a D905 Kubota spinning a Marathon 6.5Kw in a Terex/Amida at a very remote signals location for the US D.O.D - It runs almost 24/7/365 at 1800 and the last time I saw the hobbs meter (several years ago) it said 24,780 hours. As far as I know, it's still doing it's thing.
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#4608854 - 12/19/17 10:19 PM Re: Onan 8000/ kubota - 160+ hours 10K miles [Re: UncleDave]
Linctex Offline


Registered: 12/31/16
Posts: 6148
Loc: Waco, TX
Oh, and judging by this UOA, I'd try for 1000 hours for the next OCI.
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"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."

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#4608859 - 12/19/17 10:23 PM Re: Onan 8000/ kubota - 160+ hours 10K miles [Re: UncleDave]
Rand Offline


Registered: 08/20/03
Posts: 12639
Loc: NE,Ohio
What was the time of the OCI? (duration)

I think you could easily extend 50% all things being equal
(seasons/weather,load etc)
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#4608860 - 12/19/17 10:25 PM Re: Onan 8000/ kubota - 160+ hours 10K miles [Re: UncleDave]
UncleDave Offline


Registered: 06/02/14
Posts: 1636
Loc: Ca.

Run time on oil was 169 hours as it Noted at the top right of the report.


UD
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Uncle Dave
Cat 3126/2 MB3500/Titan/RX400H/17 Ridgeline
700HP V10/ 725HP BBC/ Raptor 700/ KFX450/ YZ250/Onan 8K/ Cat3011C

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#4608901 - 12/19/17 11:40 PM Re: Onan 8000/ kubota - 160+ hours 10K miles [Re: UncleDave]
DoubleWasp Offline


Registered: 05/21/12
Posts: 5236
Loc: Fort Lauderdale, FL
There's no evidence the engine ran. That could be a VOA.

Just test every 200 hours.
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#4608902 - 12/19/17 11:43 PM Re: Onan 8000/ kubota - 160+ hours 10K miles [Re: UncleDave]
UncleDave Offline


Registered: 06/02/14
Posts: 1636
Loc: Ca.
haha - nope.

I wouldn't pay for a uoa on virgin oil.

I have multiple of these very expensive combos at work and don't wish to put more man hours in than I need to.



UD


Edited by UncleDave (12/19/17 11:54 PM)
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Uncle Dave
Cat 3126/2 MB3500/Titan/RX400H/17 Ridgeline
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#4608907 - 12/20/17 12:10 AM Re: Onan 8000/ kubota - 160+ hours 10K miles [Re: UncleDave]
Colt45ws Offline


Registered: 08/15/06
Posts: 9638
Loc: Central Washington
Agree with Linctex on the 1k hour. That looks like it would work out to about once a year for you.
_________________________
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2002 Ford Crown Vic PI 207k, Ex-Kootenai County, ID Unit #42
Down for engine swap
2003 Ford Crown Vic PI 75k
Castrol EDGE HM 5W30, Fram XG2

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#4608911 - 12/20/17 12:16 AM Re: Onan 8000/ kubota - 160+ hours 10K miles [Re: Colt45ws]
UncleDave Offline


Registered: 06/02/14
Posts: 1636
Loc: Ca.
Originally Posted By: Colt45ws
Agree with Linctex on the 1k hour. That looks like it would work out to about once a year for you.



That would be an awesome interval if it holds up. I really never hoped it could be more than 250-350. 500 was a dream.

The sump is relatively tiny - 3 quarts.

Well see how that data pans out and Ill add genset 2 and 3 fairly soon.

hardcore Bitoggers still haven't asked the question yet.





UD
_________________________
Uncle Dave
Cat 3126/2 MB3500/Titan/RX400H/17 Ridgeline
700HP V10/ 725HP BBC/ Raptor 700/ KFX450/ YZ250/Onan 8K/ Cat3011C

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#4608912 - 12/20/17 12:38 AM Re: Onan 8000/ kubota - 160+ hours 10K miles [Re: UncleDave]
Colt45ws Offline


Registered: 08/15/06
Posts: 9638
Loc: Central Washington
Which question is that? Why a synthetic SN oil and not a diesel oil?
_________________________
-Colton
2002 Ford Crown Vic PI 207k, Ex-Kootenai County, ID Unit #42
Down for engine swap
2003 Ford Crown Vic PI 75k
Castrol EDGE HM 5W30, Fram XG2

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#4608921 - 12/20/17 01:33 AM Re: Onan 8000/ kubota - 160+ hours 10K miles [Re: Colt45ws]
Garak Offline


Registered: 12/05/09
Posts: 24574
Loc: Regina, Saskatchewan, Canada
He'll have to answer why he specifically chose this product, but it is suitable for diesel engines. It just is a little overkill in the SA department for CJ-4 or CK-4. You'd probably see a CF on the back of the jug, and the B4 part of the A3/B4 is rather robust.
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2008 Infiniti G37 - Shell ROTELLA T6 Multi-Vehicle 5w-30, NAPA Gold 7356
1984 F-150 4.9L - Quaker State GB 10w-30, Wix 51515

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#4608975 - 12/20/17 05:29 AM Re: Onan 8000/ kubota - 160+ hours 10K miles [Re: UncleDave]
dnewton3 Offline



Registered: 05/14/07
Posts: 7389
Loc: Indianapolis, IN
1) UOA is stellar; very low wear, low contamination, other characteristics all in fine shape
2) why a non-diesel engine oil? (apparently it's working fine, but the risk is that if you would have an unforeseen issue, the warranty may well be denied)
3) 500 hours is a MIN given this performance; 1000 hours not out of the question



Edited by dnewton3 (12/20/17 05:29 AM)
_________________________
The act of preventative maintenance, in and of itself, is FAR MORE important than brand/grade/base choices among lubes and filters.
- under maintaining something is akin to abuse/neglect; that can kill equipment by shortening the lifespan
- over maintaining something has never been proven to be anything but a waste of time and money

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