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Generators & Electric Motors General Discussion Antique Generators and Old Electric Motors: Questions and answers about restoring and showing old power generation systems.

Generators & Electric Motors General Discussion

Generator Oil Change Intervals 3600 RPM Gas


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  #31  
Old 01-22-2015, 09:01:20 AM
Hummer Hummer is offline
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Default Re: Generator Oil Change Intervals 3600 RPM Gas

Latest update. Just found out that I am to be a father of a MEP802a that I won on a gov't auction and I go to pick her up at Ft. Bragg next Monday if all goes well. Only has 254 hours on her.

It was made by Libby Corp and I was able to contact a engineering type who was there when it was built and he said they run Rotella T1 30 wt in all their diesels. In their in house testing generators are run for 6000 hours and pulled down to measure any wear.

Also did some more research and confirmed Pegasuspinto's warning about the reduction of zinc additives in newer motor oils and found that Wynn's Friction Proofing has zinc.

On some engine testing I had 30HD in one was putting out 58 cycles. I added 2 ounces of Wynn's to it (2.5 qts) and did nothing else and cycles came up to 60 and stayed there. On another engine with low cycles I put in 1 ounce for .80 qt and cycles went high. Drained oil and replaced it and cycles went 60 and stayed there. Of course it did not remove all the Wynns so there is just a tad in it now.

I will run the mep and get used to her quirks and then maybe add a ounce of Wynn's and see if there is any difference.

Wynns Friction Proofing is hard to find at dealers these days. I went to their website and looked up local distributors. Before I could buy from them I found 3 bottles of it on fleabay and got them shipped to me so I have enough for many years. They are the same packaging as the bottle I already have.

I now have installed magnets on several of my generator's drain plugs and as Doc says they will pick up some stuff.

Doc how many hours on the moly generator now?
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  #32  
Old 01-24-2015, 09:20:48 AM
armandh armandh is offline
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Default Re: Generator Oil Change Intervals 3600 RPM Gas

the rise in HZ might be due to the salubrious effect on the governor,
in it's tug-of-war with the throttle opening spring,
rather than over all output at a given throttle setting.
[more slippery less able to pull closed?]
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  #33  
Old 10-13-2018, 09:27:29 AM
Hummer Hummer is offline
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Default Re: Generator Oil Change Intervals 3600 RPM Gas

FWIW I just found a half pound of small micron (1.5) molybdenum di on Amazon for 55.00. A half pound should last 10 years. I run moly in everything as oil filters will pass up to 5 microns so 1.5 moly is a go.

I have taken oil filters apart and there is no moly build up in them at all.

I pulled my Powerback out yesterday, Put a 3000W load on it and ran it 3 hr 50 minutes on a hair over 2 gallons of non ethenol. The oil stick does not show any use.
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  #34  
Old 10-17-2018, 05:34:02 PM
csareb csareb is offline
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Default Re: Generator Oil Change Intervals 3600 RPM Gas

Quote:
Originally Posted by Hummer View Post
FWIW I just found a half pound of small micron (1.5) molybdenum di on Amazon for 55.00. A half pound should last 10 years. I run moly in everything as oil filters will pass up to 5 microns so 1.5 moly is a go.

I have taken oil filters apart and there is no moly build up in them at all.

I pulled my Powerback out yesterday, Put a 3000W load on it and ran it 3 hr 50 minutes on a hair over 2 gallons of non ethenol. The oil stick does not show any use.
a little under 4 hours on 2 gallons is a bit thirsty, but then those engines arent exactly known for being fuel efficient. still might want to check air filter, and thouroughly clean the carb, and you should be able to get close to 2.5 hours per gallon with that engine. check the governor too, it should be putting out 59.99 to 60.01 hz with a 3000w load (1500w on each 120v leg) if your rpms are high it would explain the larger fuel consumption.

that said, I run moly in everything as well, and have had good results.

(on a side note I get almost 4 hrs per gallon @ 50% load on a eb6500/gx390 with moly powder treatment and synthetic oil and around 3 hrs 45 minutes per gallon @ 50% load running bargain store 15w-40 with moly powder added)
of course the engine isn't exactly stock. its been upgraded with an aftermarket air cleaner, stainless steel short header with a 1.25" open end, attached to 6 ft of 1.25" flex pipe, which feeds a tractor muffler via a 1.25" to 1.5" pipe coupler. very quiet. the carb is genuine Honda, but was overbored 3mm larger by a carting shop, honed to 3000 grit, and jets drilled for optimal mixture. thinner head gasket to increase compression, and e3 3.54 spark plug.)

(attached is a pic of the exhaust stack complete with rainguard flapper)

as for the topic, I change oil every 48 hours for the first 500 hours, then every 96-100 hours after that.
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  #35  
Old 10-18-2018, 03:00:23 PM
Railroads Railroads is offline
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Default Re: Generator Oil Change Intervals 3600 RPM Gas

I've thought about this subject a lot and always just come back to using the manufacturers recommendation for oil.

I did run across this stuff being tested on a chonda on youtube. https://www.youtube.com/watch?v=9zaTemRdDpI

The original slick 50 is no longer available and the inventor has never sold the original formula. https://www.youtube.com/watch?v=CAt-tJa9P_s The stuff was quite popular in New Zealand for use in propane burning engines back in the day from what I've read.

I've seen several mention using Archoil Friction Modifiers along with some of the moly treatment in small engines. Don't know a lot about this stuff but wonder if it works any better than straight oil?

Me, I live in a area that gets quite hot in the summer months so I was using Super Tech 15w40 in my Tecumseh HM80 genset. In the winter I was switching to 10w-30 for colder weather.

Never had any trouble with that setup. When I use regular 10w-30 and not the diesel rated stuff I tend to use either motor honey or Lukas oil stabilizer in hot weather or for engines that burn oil a lot.

Robert
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  #36  
Old 11-14-2018, 02:28:05 PM
scoops scoops is offline
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Default Re: Generator Oil Change Intervals 3600 RPM Gas

There are you-tube videos that compare friction modifiers against straight oil.

It all comes down to the testing process, but what what I have seen there are a few products that do show less wear with the additive.
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  #37  
Old 11-14-2018, 03:22:08 PM
Railroads Railroads is offline
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Default Re: Generator Oil Change Intervals 3600 RPM Gas

My 4KW 8HP Tecumseh has a 1 gallon tank and with 260 watt load I ran 2 hours per gallon. Not efficient for sure. Got another gen coming that has a 10HP Tecumseh and is supposed to run 5 hours. I am doubtful on those numbers.

Robert
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  #38  
Old 11-14-2018, 10:18:33 PM
Ken Karrow Ken Karrow is online now
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Default Re: Generator Oil Change Intervals 3600 RPM Gas

Update on magnets, had a unit that plugs were 1/8" npt. Found magnets on Amazon 4 mm x 10mm hot dog shape. #22 drill is just right to drill plug.
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  #39  
Old 11-14-2018, 10:26:44 PM
Newoldstock Newoldstock is offline
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Default Re: Generator Oil Change Intervals 3600 RPM Gas

The thing about zinc and additives like it is they coat the surface of the metal and only come into play when you have no oil wedge between your moving parts.

When everything is working correctly metal never contacts metal. Wear, most of it is caused by the lapping of metal by dirt and the polish action of the lubricant. Its hard to avoid these things.

Zinc and anti friction additives are most useful at start up when metal touches metal. They say (those guys that say stuff about this and that) that most friction wear comes from cold starts.

Solution: never start your engine unless you need to?
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Old 11-15-2018, 11:09:52 AM
Thaumaturge Thaumaturge is offline
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Default Re: Generator Oil Change Intervals 3600 RPM Gas

NOS... Moly treated tear down @ 4000 hours. No joke. (Impressed me!) https://drive.google.com/folderview?...EJjaUItWlpqQkk
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