Is my bottom end needing replace?
09-14-2007, 04:39 PM
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Is my bottom end needing replace? 1997 vette 40,000 miles,Patriot heads&cam(64cc),kooks,stock bottom end. This is there I stand right now. I have a ping or detonation noise I think. Noise starts as soon as car starts. Noise varys by throttle (93octgas) pulling hills in higher gear makes noise alot worst.Had car dyno in Aug. Did 405rwhp/385rwtor. But, had alot of oil in the intake, and now I have excessive oil blowby. Car smokes(blue) but not all the time. And has this DAM NOISE at all speeds & gears. When car was dyno it was 50% lean (not good). Got this car on the last day of may. car was running lean for sometime 2-3 yrs or 7,000 miles. Could the noise,pinging be due to carbon buildup in cylinders? I am at the point where I think I may need a new bottom end! PLEASE HELP!!!!! if u can thanx..........
09-14-2007, 04:48 PM
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Have you looked into your Knock sensors and O2 ? You might have the engine tested for compression or better yet, have a Leak Down test done.
If you have carbon build up. many have had success with Seaform, you can find a Sticky in one of the forum.
If you have carbon build up. many have had success with Seaform, you can find a Sticky in one of the forum.
09-15-2007, 11:08 PM
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Originally Posted by todbusa
Not to be a dumbass but, what are knock sensors. Are they on a 97 ls1 if so where should I look for them. thanxs.
09-16-2007, 11:07 AM
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So, A (knock) the sensors would tell me? Right! As in what kind of knock(crankshaft,connecting rods,lifters,etc) Cuz, right now I have no codes..... I still think its in the heads, But would that cuz smoking, oil blowby, and this noise I still hear? Oil blowby is worst on right side, left side suck more on top of the heads.
