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Bobcat Skidsteer Forums
General Bobcat Skidsteer Forum
Carbon Biuldup
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<blockquote data-quote="Brentf1965" data-source="post: 80758" data-attributes="member: 9663"><p>I have a '79 Bobcat 720 with the Wisconsin engine. The #4 cylinder has 90 psi of compression but has a large buildup of carbon on the spark plug. I R/R the plug, operated the Bobcat for an hour, removed same plug and found it with carbon buildup again. The other cylinders have between 70-90 psi with no buildup. Any thoughts? Remember this is a '79 without a rebuild to my knowledge.</p></blockquote><p></p>
[QUOTE="Brentf1965, post: 80758, member: 9663"] I have a '79 Bobcat 720 with the Wisconsin engine. The #4 cylinder has 90 psi of compression but has a large buildup of carbon on the spark plug. I R/R the plug, operated the Bobcat for an hour, removed same plug and found it with carbon buildup again. The other cylinders have between 70-90 psi with no buildup. Any thoughts? Remember this is a '79 without a rebuild to my knowledge. [/QUOTE]
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Carbon Biuldup
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