Posted by RAB on October 29, 2008 at 10:38:51 from (64.12.117.74):
In Reply to: Re: hard to start posted by old on October 29, 2008 at 07:38:56:
Old is right. You may have replaced all good parts. You need to diagnose the fault. Check the spark while cranking, check the plugs to see if fuel is available at the cylinders. I disagree on needing 90 psi to start, although a compression test could show a leaking valve which would increase starting problems.
You don't tell if it burns oil - worn bores What oil? If it is non detergent it may have stuck rings. Spark can be superb, but if it is at the wrong time......
Could be something as simple as an air leak into the inlet manifold. Without proper details, who knows where to start looking. RAB
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Today's Featured Article - Engine Valves - Some Helpful Information - by Staff. Intake - On the intake stroke the piston moves doward, sucking in carburized fuel through the open intake valve. Exhaust valve is closed. Compression - With both the intake and exhaust valves closed, the pistons upward stroke compresses or squeezes the fuel into the combustion chamber. Firing - Ignited by the spark, the compressed fuel explodes and forces the piston downward on its power stroke. Intake and exhaust valves are closed. Exhaust valves and seats are exp
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