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Lack of compression - ECHO Toyota Cars & Trucks

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This is a very vague question, however likely causes for lack of compression in reference to a piston/cylinder arangement are worn rings/ cracked block/ blown head gasket. Please provide more details!



Posted on Jul 21, 2008


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I don't know this engine in detail, but we can make a few general statements. In that type of engine, lack of power can be caused by

- a bad spark (check spark plugs for gap and fouling, measure coil resistances, check plug leads)
- lack of fuel (weak fuel pump, blocked filter, blocked jets in carby)
- engine timing off spec (use a timing light to check this)
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