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You bring the cylinder to be tested to TDC and connect the test guage. You apply the pressure and see if it holds. If it does not, you listen for air in the intake to see if the intake valves are bad, the exhaust to see if the exhaust valve is bad, the dip stick tube to see if the rings are bad and you look at the coolant in the radiator to check for bubbles to see if the head is bad or has a gasket leak.
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How do you check for bent valves in a Ford Focus?
Use a leak-down tester in the suspect cylinder to see if the valve is sealing.
How much compression is good for a Briggs and Stratton 11hp vertical engine?
Leak down test : Uses 70lbs pressure to test for leaks around valves and cylinders.
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Overheating or coolant leak.
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How do you check for a vacuum leak on your Hyundai accent 1997?
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My 1998 K2500 Suburban is in overall great shape. I keep it maintained very well. When the air conditioner R134 charge leaked down, I tried extensively, but could not find the leak. Turned out to only be the schrader valves on the compressor (both high and low pressure lines). Didn't replace the valves. Just re-gassed the system and screwed on red and blue plastic caps which have "O" rings in them. No more problems. That has been about two or three months ago and the A/C works fantastically.
