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Joined: Dec 2001
Posts: 30
Novice
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I have managed to free the piston by using petrol to flush out the metal particles, but the cyclinder is scratched. how much damage can be done before I have to rebore it. Most of the scratches don't actually look to bad. I really don't want to put the money into reboring.
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Joined: Jan 2002
Posts: 27
Novice
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Macca
I Cannot really suggest much because I cannot see the amount of damage done. However if the scratching is only minor You could avoid re - boring, By Trying to Re - Hone the cylinder with a cylinder Hone and fitting new piston rings. Check the piston to see if its scratched.
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Joined: Jun 2002
Posts: 14
Novice
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Macca, If scratching is minor, the piston may still work fine, you must be sure to remove all metal shavings from the chamber, try using a magnet.
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Joined: Jan 2002
Posts: 27
Novice
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Macca
Wash the whole engine block in Clean Kerosene and thoroughly dry with a dustless rag. Or if you have an air compressor blow it out until dry with compressed air. This should remove all traces of metal shavings or grindings.
[This message has been edited by Ben G (edited 16 June 2002).]
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Joined: Dec 2001
Posts: 30
Novice
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thanks Ben. so even if the cyclinder is scratched, it will still work but just not as well, right?
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Joined: Jun 2002
Posts: 14
Novice
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Macca, using an air commpressor is the best way to get the metal shavings out, if you do not have one you should definitely buy one, all mower mechanics need one.
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Joined: Jun 2002
Posts: 14
Novice
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Macca, the scratches will fill up with carbon over time anyway so minor scratches should not worry you. It will get better with time.
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