Leakdown tester homemade engine cylinder troubleshooting tool
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If you have a cylinder in the engine that is not as strong as the rest, and you have determined that it is getting spark, here's how to make a simple tool that may aid in locating the problem. This gives you some of the functionality of a leakdown tester. | If you have a cylinder in the engine that is not as strong as the rest, and you have determined that it is getting spark, here's how to make a simple tool that may aid in locating the problem. This gives you some of the functionality of a leakdown tester. | ||
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*If you hear air coming up through the carb (open the throttle) it may be a leaking intake valve. | *If you hear air coming up through the carb (open the throttle) it may be a leaking intake valve. | ||
*If you hear a hissing noise from the oil fill tube, or the dipstick tube, it may be a piston or piston ring problem. | *If you hear a hissing noise from the oil fill tube, or the dipstick tube, it may be a piston or piston ring problem. | ||
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This simple homemade device can save a lot of time in diagnosing a problem. Using a mechanic stethoscope can help in hearing the tell-tail hissing of a leaking valve at the exhaust manifold or header port, or at the intake manifold port. The sound transmits surprisingly well. | This simple homemade device can save a lot of time in diagnosing a problem. Using a mechanic stethoscope can help in hearing the tell-tail hissing of a leaking valve at the exhaust manifold or header port, or at the intake manifold port. The sound transmits surprisingly well. | ||
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