Quote:
Originally Posted by jkubica
Hi
Thank you!
Please be so kind as to explain the "quick test" a little more. What does it mean if the sound goes away at 1600-1900 rpm? And why would that happen?
Also, does an injector with internal leaks - have a distinctive sound?
Regards,
Joseph
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As the RPM come up, the marginal injector(s) get more fuel - helping to quite the nailing. Idle and just above idle is where nailing will be easiest to hear.
I don't really think an internal leak/dribble will sound very different than a low pop pressure - IE: they both tend to nail BUT there might be some 'old timers' here who know how to tell them apart.....?