Post by
nissanfreak12 »
https://forums.nicoclub.com/nissanfreak12-u177688.html
Tue Dec 22, 2015 8:59 pm
That doesn't sound like a lifter, truthfully. Too slow for a lifter.
If you want to find out, unplug injector one at a time. If the noise goes away, its rod knock in that cylinder. If it stays after you unplug everyone of the injectors, then its a collapsed lifter, and a bad one at that.
That is the easiest way to find if you have rod knock, it will essentially make a dead cylinder. Doing it that way there will not be a combustion in that chamber, which will not create a "knock" noise.