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tpunx99GSX · 01-10-2009

Ok so im still trying to figure out this Rattle. Its more of a knock so ill call it that.
The car idles PERFECT. No obsurd sounds, no shaking, really no problems.
If i rev the car to just about 2.5k rpm it makes a knocking sound, i listen really closely and it sounds like its coming from cylinder 4.
If this was rod knock, would it be only happening at 2.5k and above? Or would it affect idle?
Is there any tests to check for rod knock? Can i take off the oil pan and be able to wiggle the piston or something? Im really freakin confused, and if this is in fact rod knock, im parting out the car. But it would really like to sell this as a whole and be done with it.
Just a few notes:
New timing belt, New revised lifters bled etc, new clutch, new head gasket.
Thanks in advance. Ill try and capture the sound on video and post it.

01-10-2009	#1
tpunx99GSX Tournaments Won: 3 Join Date: Oct 2003 Location: Maple Grove, MN Drives: Lancer and Durango Posts: 7,017	Rod Knock? Ok so im still trying to figure out this Rattle. Its more of a knock so ill call it that. The car idles PERFECT. No obsurd sounds, no shaking, really no problems. If i rev the car to just about 2.5k rpm it makes a knocking sound, i listen really closely and it sounds like its coming from cylinder 4. If this was rod knock, would it be only happening at 2.5k and above? Or would it affect idle? Is there any tests to check for rod knock? Can i take off the oil pan and be able to wiggle the piston or something? Im really freakin confused, and if this is in fact rod knock, im parting out the car. But it would really like to sell this as a whole and be done with it. Just a few notes: New timing belt, New revised lifters bled etc, new clutch, new head gasket. Thanks in advance. Ill try and capture the sound on video and post it. __________________ Scientific theories are the most reliable, rigorous, and comprehensive form of scientific knowledge. This is significantly different from the common usage of the word "theory", which implies that something is a conjecture, hypothesis, or guess.