How can you tell the ignition timing of a spark plug?
Ignition timing is directly responsible for the heat in the combustion chamber and therefore the color of the plug’s ground strap and the color of the first few threads on the outside of the plug. The ignition timing can be checked by looking at the color of the plug’s ground strap and the position of the “blue line” on the strap.
How can I get my spark plugs to read the same time?
If you ignition system has the capability of adjusting the timing of each cylinder independently (ICT) then you can use that feature to have the blue line in the same position on all the plugs. First, adjust the basic timing to get as many of the plugs to have the blue line just at the sharp bend in the strap.
What should the ring on the spark plug look like?
Normally aspirated cars should have a light gray or tan hydrocarbon ring or as some call it a “fuel ring” all the way up inside around the third area closest to the point where the porcelain is attached to the metal jacket of the plug. The actual color may depend on type of fuel you use.
What to do when your engine has no spark?
Insert a spark plug tester into the plug boot and ground it on a piece of metal on the engine. Finally, Have someone crank the engine and watch for spark. Remove one of the coils from the spark plug. Use an extra spark plug. A spark plug tester. Or even a screwdriver in the end of the coil.
How can I tell if my spark plugs have slipped?
Forget you can check for spark with the timing light cranking, and see the cam has in fact slipped. Pull the distributor, unless you learn how to re-time it from scratch. Fail to see if the Cam is actually spinning! LOOK! Fail to look for shorted spark plugs all 4 or 6 of them. for Fouled but they should look GOOD.
Where do I connect the spark plug for my OMC 60 degree V6?
Once you have verified the timing pointer using a piston stop tool (or a dial indicator), connect all spark plug wires to a spark gap tester, and connect a remote starter to the engine and a timing light to the No.1 spark plug wire.
Insert a spark plug tester into the plug boot and ground it on a piece of metal on the engine. Finally, Have someone crank the engine and watch for spark. Remove one of the coils from the spark plug. Use an extra spark plug. A spark plug tester. Or even a screwdriver in the end of the coil.
Is there a diagnostic code for no spark?
A high fail rate Igniter and VR sender. (likes to fail hot or random cut outs) However 89/90 ECU does monitor spark! DTC 41. (diagnostic trouble codes) Crank engine with Diagnostic jumper (fuse) in place for 5 seconds, see if code 41 throws.