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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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  #41  
Old 11-15-2018, 03:32:07 PM
Tim0477 Tim0477 is offline
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Default Re: Generator Oil Change Intervals 3600 RPM Gas

What was the reason for the tear down at 4k? Some other part than the engine give up the ghost? Cam finally wiped out?

Tim
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  #42  
Old 11-15-2018, 06:23:41 PM
Thaumaturge Thaumaturge is offline
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Default Re: Generator Oil Change Intervals 3600 RPM Gas

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Originally Posted by Tim0477 View Post
What was the reason for the tear down at 4k? Some other part than the engine give up the ghost? Cam finally wiped out?

Tim
Sorta. Cam was actually cast, but rivet on decompression pall worked loose alowing pall sideways movement... where it beat the crap out of cam drive gear on crank. Damage to gear enough to bind between crank and cam. Only damage to engine, but sufficient to DOA it. Wasn't a problem for other use as I had several brand new straight cranks. But trashed gen taper crank. So have good non-gen motor.
Doc
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  #43  
Old 11-17-2018, 07:15:53 PM
Newoldstock Newoldstock is offline
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Default Re: Generator Oil Change Intervals 3600 RPM Gas

Hmm....
I find it hard to believe.
Everything just looks too clean.
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  #44  
Old 11-18-2018, 12:46:52 AM
Thaumaturge Thaumaturge is offline
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Default Re: Generator Oil Change Intervals 3600 RPM Gas

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Originally Posted by Newoldstock View Post
Hmm....
I find it hard to believe.
Everything just looks too clean.
Believe what you will. Internal condition is reason why I took pictures.
Doc
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  #45  
Old 11-18-2018, 12:50:31 PM
Newoldstock Newoldstock is offline
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Default Re: Generator Oil Change Intervals 3600 RPM Gas

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Originally Posted by Thaumaturge View Post
Believe what you will. Internal condition is reason why I took pictures.
Doc
Worth further investigation.
I will look for that stuff and try it.

What is the exact name of the product?
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  #46  
Old 11-18-2018, 01:17:17 PM
Thaumaturge Thaumaturge is offline
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Default Re: Generator Oil Change Intervals 3600 RPM Gas

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Originally Posted by Newoldstock View Post
Worth further investigation.
I will look for that stuff and try it.

What is the exact name of the product?
Pure molybdenum disulfide powder. (The "moly" in "moly grease") One time treatment is one rounded teaspoon mixed with third oil change. Combined with drainplug magnets cleaned every oil change. Oil change at least every 100 hours runtime.

https://www.amazon.com/Molybdenum-Di...enum+disulfide

Doc
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  #47  
Old 11-18-2018, 08:27:25 PM
Newoldstock Newoldstock is offline
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Default Re: Generator Oil Change Intervals 3600 RPM Gas

Worth trying!

reminds me....

I remember you used to be able to see the graphite powder in some oils.
Grand Pri brand snow machine oil had to be shaken well to keep it in suspension and over time you could see the black layer in the bottom of a gas can.
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  #48  
Old 11-28-2018, 05:39:46 PM
Thaumaturge Thaumaturge is offline
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Default Re: Generator Oil Change Intervals 3600 RPM Gas

Have now also uploaded pics of crank gear and loose cam decompression pall which explains what killed engine. You can clearly see damage to cam drive gear.
Doc
https://drive.google.com/folderview?...EJjaUItWlpqQkk
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Old 11-28-2018, 11:37:24 PM
turtmaster turtmaster is offline
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Default Re: Generator Oil Change Intervals 3600 RPM Gas

Hmm, I don't see any of the new pictures.
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  #50  
Old 11-29-2018, 12:23:12 AM
Thaumaturge Thaumaturge is offline
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Default Re: Generator Oil Change Intervals 3600 RPM Gas

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Hmm, I don't see any of the new pictures.
Just checked, link sharing is enabled. Should see total of ten pics. One shows crank end, one shows me holding cam with loose decompression pall that did damage to engine. (Reason for teardown.) I probably ought to just upload all pics I took during teardown.
Doc

Update: Okay I uploaded ALL pics I took during teardown. The good, the bad, the redundant and the ugly. (I tossed a couple in the bit vapor bin, due to being too blurry.)
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Last edited by Thaumaturge; 11-29-2018 at 01:08:33 AM.
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