Why do I lose compression past the spark plug threads?
Why do I lose compression past the spark plug threads?
Using teflon tape on the threads stops the leak. It does this a bit on the other cylinders as well but not nearly as much. Another strange thing is that the compression on cylinder #4 is higher when the motor is cold and decreases about 25-30 psi when the motor is warm. Maybe the plug hole expanding and allowing more air to escape?
What are the differences between PCM and coil on plug ignition?
PCM controlled ground (dwell) 2 wire coils Ignition coil dwell done by PCM Offers more available tests 2 wire coils Direct access to coil primary allows for measurement of primary resistance 2 wire coils Some coils allow for measurement of secondary resistance 2 wire coils Many coils place a diode between the primary and
Where was coil on plug ignition presented at?
Presented at 2011 Fall ICAIA conference, Ranken Technical College, St. Louis This Article is brought to you for free and open access by the Department of Automotive Technology at OpenSIUC. It has been accepted for inclusion
How many plugs does a hemi coil fire?
2 styles of coils that fire 2 plugs “Hemi” V-8 2 wire coils Often one or more external capacitors are utilized Typical rating under 1 microfarad 477 nano Farads 2 wire coils: access to primary voltage Secondary
Why does my ignition coil interrupt my spark plugs?
The exact mechanism depends on if you have a ‘conventional’ system with a distributor, a more modern distributor-less system, or the newest coil-on-lug system, Advance Auto Parts explains. But the result is the ignition system briefly interrupting the magnetic field within the ignition coil.
Using teflon tape on the threads stops the leak. It does this a bit on the other cylinders as well but not nearly as much. Another strange thing is that the compression on cylinder #4 is higher when the motor is cold and decreases about 25-30 psi when the motor is warm. Maybe the plug hole expanding and allowing more air to escape?
What happens if one of the spark plugs fails?
No jumping current, no spark. Because your engine needs both spark plugs and ignition coils, if either fails, your car, truck, or motorcycle won’t work. But diagnosing which one’s the problem can be tricky.
