Leakdown tester homemade engine cylinder troubleshooting tool
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There is also a tool called a "differential cylinder pressure tester" (aka ''leakdown tester''), that operates on the same principles, but it regulates the pressure entering the cylinder, and monitors the pressure that remains, the balance being the amount of "leakdown". A GOOD healthy motor will leak less than 3~5%, more than about 10~15% is in need of repair, but as was stated above, you can listen to ''where'' it's leaking, so you know whether to go after head gaskets, valves or valve adjustment, or rings. | There is also a tool called a "differential cylinder pressure tester" (aka ''leakdown tester''), that operates on the same principles, but it regulates the pressure entering the cylinder, and monitors the pressure that remains, the balance being the amount of "leakdown". A GOOD healthy motor will leak less than 3~5%, more than about 10~15% is in need of repair, but as was stated above, you can listen to ''where'' it's leaking, so you know whether to go after head gaskets, valves or valve adjustment, or rings. | ||
| − | http://image.carcraft.com/f/8883467/116_0406_leak02_z.jpg | + | [http://image.carcraft.com/f/8883467/116_0406_leak02_z.jpg Leakdown tester] |
==Cooling system pressurizer== | ==Cooling system pressurizer== | ||
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*[http://www.carcraft.com/techarticles/116_0406_cylinder_leakdown_tester/index.html Car Craft article on using a leakdown tester] | *[http://www.carcraft.com/techarticles/116_0406_cylinder_leakdown_tester/index.html Car Craft article on using a leakdown tester] | ||
| + | * [http://www.instructables.com/id/Make-an-Auto-Radiator-Pressure-Tester/ Making a homemade cooling system pressure tester] | ||
[[Category:Engine]] | [[Category:Engine]] | ||
[[Category:Tools]] | [[Category:Tools]] | ||
[[Category:Troubleshooting]] | [[Category:Troubleshooting]] | ||
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