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General Minitrail Talk
Tech Area
1975 CT 70 compression issue
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<blockquote data-quote="69ST" data-source="post: 92814" data-attributes="member: 5"><p>Sounds like rusted cylinder walls, rings and at least one valve & seat. I wouldn't expect anything but a top end rebuild to get this motor running properly but, you've got nothing to lose by trying the Mystery Oil, a little gasoline down the plug hole and seeing if it'll fire. I've successfully rebuilt many of these engines with cylinders that looked like they were used for saltwater storage. As long as the lower end isn't rusted, they rarely are, there's not all that much in terms of parts or work, needed to rebuild the upper end back to tip-top specs, even if it looks horrible.</p></blockquote><p></p>
[QUOTE="69ST, post: 92814, member: 5"] Sounds like rusted cylinder walls, rings and at least one valve & seat. I wouldn't expect anything but a top end rebuild to get this motor running properly but, you've got nothing to lose by trying the Mystery Oil, a little gasoline down the plug hole and seeing if it'll fire. I've successfully rebuilt many of these engines with cylinders that looked like they were used for saltwater storage. As long as the lower end isn't rusted, they rarely are, there's not all that much in terms of parts or work, needed to rebuild the upper end back to tip-top specs, even if it looks horrible. [/QUOTE]
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1975 CT 70 compression issue
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