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Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
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Re: how low can compression be before engine wont run..
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Sun, 14 November 2004 08:52
 
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8:1 should still give you decent cranking pressure..
even with a big cam i'd be surprised if it went below 140psi for a fresh motor..
basically there is something wrong with either the piston rings not sealing (unlikely) or there is something wrong with the valves, ie timing or not closing etc etc...
measure twice cut once 
basically, start from scratch. manually measure cam timing.. notches is not good enough.. manually check that valves are closing properly etc (connect up air to the spark plug hole with both valves closed)
oh.. did you do the compression test at WOT???
Cya, Stewart
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| | Subject | Poster | Date |
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how low can compression be before engine wont run..
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people100 | Sun, 14 November 2004 07:39 |
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Re: how low can compression be before engine wont run..
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oldcorollas | Sun, 14 November 2004 07:43 |
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Re: how low can compression be before engine wont run..
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people100 | Sun, 14 November 2004 07:56 |
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Re: how low can compression be before engine wont run..
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oldcorollas | Sun, 14 November 2004 08:52 |
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Re: how low can compression be before engine wont run..
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oldcorollas | Tue, 16 November 2004 09:21 |
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Re: how low can compression be before engine wont run..
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munki | Sun, 14 November 2004 09:38 |
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Re: how low can compression be before engine wont run..
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people100 | Sun, 14 November 2004 09:44 |
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Re: how low can compression be before engine wont run..
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clubagreenie | Sun, 14 November 2004 10:28 |
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Re: how low can compression be before engine wont run..
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barned01 | Sun, 14 November 2004 11:41 |
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Re: how low can compression be before engine wont run..
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pheonix83 | Mon, 15 November 2004 07:43 |
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Re: how low can compression be before engine wont run..
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people100 | Mon, 15 November 2004 08:49 |
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Re: how low can compression be before engine wont run..
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allencr | Mon, 15 November 2004 16:21 |
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Re: how low can compression be before engine wont run..
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people100 | Tue, 16 November 2004 08:18 |
