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Carb screw damage to piston & cylinder head.


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#16 TGaffney OFFLINE  

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Posted May 29, 2017 - 05:27 AM

I checked the compression yesterday was right around 60 PSI "dry" and only went up a few pounds with a squirt of oil.  I read that 60 is about right due to the compression release feature.  Is that correct?

 

Also - I did see/hear at least one bolt/screw in the muffler.



#17 Husky OFFLINE  

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Posted May 29, 2017 - 03:38 PM

If it runs well I'd leave it alone. It seems that your inspections went well.
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#18 TGaffney OFFLINE  

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Posted May 29, 2017 - 03:46 PM

Yes - the tractor fires right up and seems to run fine - so I will probably sit tight for now.  A forum member has a cylinder head available so I am going to pick that up as a back up for down the road.



#19 nsengineer OFFLINE  

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Posted May 31, 2017 - 12:02 AM

I had that happen to me on a little two stroke snow blower with tecumseh engine. Mine did not fare as well. Something mush have jammed up and the rod went through the block. Was blowing snow and all of the sudden started rattling and spit pieces all over the driveway. I think it should run fine as long as everything is out of the engine and into the exhaust or muffler. I also would be more concerned about piston than head but I would prob just run it as well.
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#20 Cvans ONLINE  

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Posted May 31, 2017 - 08:00 AM

The odds are that the engine will run just fine. I purchased a large garden tractor once that was only running on one cylinder. The screw was stuck under the exhaust valve. Put it back together and it has been running fine for years. The head and piston looked like yours and it didn't seem to have hurt anything. 


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