Post by
themadscientist »
https://forums.nicoclub.com/themadscientist-u2806.html
Fri Nov 19, 2004 8:27 am
Close your eyes and ignore the shaking and listen to it. Does it sound like it is running properly? If it does sound right but is shaking you have a busted motor mount and the engine is just shaking because one side is not attached to the mount anymore. That is easy enough to confirm by grabbing the engine and rocking it from side to side. Now if it sounds screwy you likely have a dead cylinder. With the engine running start at #1 and pull the plug wire, CAREFUL! that can hurt if the wire is bad and the coil fires though you! If the engine runs worse plug the wire back in, that cylinder is ok. pull them all one-by-one. You are looking for a cylinder that when you yank the plug wire the engine's idle does not change, that's a dead one. pull the plug on that cylinder, plug it into the wire and lay it on it's side on the engine somewhere where it can ground out. Have a freind or an enemy or a leather-clad guy wrapped in saran wrap crank the engine. If the plug sparks it's good, well good enough. If it fires but seems weak observe a known good cylinder's plug fire and compare. If the plug is wet and black when you pull it out it ain't firing. If the plug is strong but clean or white listen to the injector on that cylinder, you should hear the clicking of the pintle solenoid. If you are getting no fuel you likely have a dirty or failed injector.