Hi guys, I am getting a little knocking sound coming from my engine. It only happens at light load between 2750-3500 rpm, never at idle and never at high RPM or WOT. As some of you may know I haven't had good luck with M20s and rod knock... but this doesn't sound like rod knock. Or maybe it is. That's why I have you guys!
I've been comparing it to what I remember of rod knock before my M20B28 blew up. First of all the B28 didn't drive for several weeks after the knocking started (I've put well over 100 miles on the car since the noise started). This also sounds a little lighter if that makes any sense. I tried to get a video but you can't hear the knock over wind noise while the B28's knock was very audible. Also it hasn't really hindered the engine's performance at all... it still sounds and drives great, although it does smell a little rich at times.
Now, I am leaning towards rod knock. I am working on getting a motor swap lined up. BUT, I would still like some more opinions. Discuss.
I've been comparing it to what I remember of rod knock before my M20B28 blew up. First of all the B28 didn't drive for several weeks after the knocking started (I've put well over 100 miles on the car since the noise started). This also sounds a little lighter if that makes any sense. I tried to get a video but you can't hear the knock over wind noise while the B28's knock was very audible. Also it hasn't really hindered the engine's performance at all... it still sounds and drives great, although it does smell a little rich at times.
Now, I am leaning towards rod knock. I am working on getting a motor swap lined up. BUT, I would still like some more opinions. Discuss.
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