Is this motor junk


  #1  
Old 07-24-19, 04:33 PM
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Is this motor junk

Hi All, long story short, the oil drain plug blew out and I lost all of the oil before I knew it, motor stopped, I let it cool down and tried to turn it over, NOT! I poured some oil in the spark plug ,let it sit for a bit and turned it over with some effort by a putting a wrench on the nut under the starter housing, it eventually turned over nicely, put everything thing back together, added oil and it started right up and ran for about 30 seconds, a puff of smoke and it appeared to seize up again.
Any thoughts?
Geo
 
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Old 07-24-19, 04:52 PM
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Sounds like you toasted the bearings, May have also scored pistons,
 
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Old 07-24-19, 05:14 PM
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It would depend somewhat on the engine as far as investing the money to rebuild it.

If it's middle of the road box store stuff it's probably better to toss it. You would have rod and crank bearings, piston, rings, block/cylinder. The crank you may be able to clean the aluminum off and polish it if it didn't get too hot. Some of the upper engine may have been spared, but that's just a maybe. You have to get inside of it to say.
 
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Old 07-24-19, 07:59 PM
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Any online manuals for tearing this motor down?
Geo
 
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Old 07-24-19, 11:19 PM
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What motor is it? On most of them you pull off the oil sump cover and look inside and go from there. Often times that's enough to determine if it's worth fixing. If not, you pull the head(s) and piston(s) and inspect further.
 
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Old 07-25-19, 05:32 AM
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Did I miss something? You never told us what engine you have.
 
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Old 07-25-19, 06:16 AM
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Engine info...................... 123K12-0134-E1 04092057
 
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Last edited by Geochurchi; 07-25-19 at 06:38 AM.
  #8  
Old 07-25-19, 07:18 PM
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No, that engine isn't worth the effort and money. Just a cheap push mower engine with an aluminum cylinder that almost surely is galled and scored and the journal bearing surfaces are just aluminum too, probably galled too. If it was a commercial grade engine or a big riding mower engine it might warrant a look, but not this unless you're just intent on learning and seeing what went wrong.
 
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Old 07-26-19, 05:35 AM
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Thanks Cheese, I have spare time so I think Iíll pull it apart just to have a look.
Geo
 
 

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