my turbo has been on my car for about 3,000 miles. when the car is cold and i hit the gas slightly while idle i get the rod knock. i even had a certified mechanic verify this. so basically it's really there. Do I think it is because of the turbo? no. i'm not sure, but i think this problem might have existed before but I just ignored it. Of course once the car warms up you can not get it to make the knocking again. i already have mobil 1 in their since before the turbo and the car has 85,000 miles.
should I be worried? should I start to think about buying a new block? how soon until i'm screwed?
#62080, "RE: got sum rod knock" In response to Reply # 3
Originally posted by Uberingram
Originally posted by etx Most likely lifter tick. Once your oil heats up and thins out it quiets down.
i LOVE lifter tick...ppl go "whats the noise?" You might be a DSM owner if: 10 = If people recognize your car by the sound of it's lifter tick....
i don't mean to steal the thread, but can anyone describe exactly what lifter tick sounds like on our cars? right now i have what i thought was an exhaust leak around the turbo area, but it goes away after the car's warm. it's pretty noticeabble outside the car, and sounds like.. tick tick tick.. u get the idea, so i dunno, can that be lifter tick?.. never heard lifter tick although i know it's common on our cars.
sorry 'bout that.. to answer your question though, yeah, are u sure it is rod knock? i don't believe rod knock will "go away" once the engine's warm. anyway, if it is in fact rod knock, then i wouldn't drive the car much until it's fixed.. less damage to your crank
#62227, "RE: got sum rod knock" In response to Reply # 5
IF you have a slight rod knock, try changing the oil to a regular 20W50. The Mobil one might be too thin for your engine. Don't forget to change to a new oil filter too. This wouldn't hurt to try Plus if you get WalMart brand oil and filter it should only cost you about $11.
#62231, "RE: got sum rod knock" In response to Reply # 6
Hey 97eclipseRS start the car and listen to the valve cover closely. If it sounds like it coming from there then its lifter tick. It could be your injectors also, its normal for them to tick.
____________________________________________________ four nails four corners four riders and four horses
#62280, "RE: got sum rod knock" In response to Reply # 8
If it sounds like rod knock and not lifter tick, and it goes away once the car is warmed up, I'll bet you have a cracked piston ring land. My car did the exact same thing after I ran 13 psi on stock internals. It still ran great except for that noise that sounded like rod knock only when the car was cold. Once it warmed up, the noise was gone. If I were you, I'd do a compression test.
Matt 1995 Eclipse GS 2.0L, S16g Turbo, 8 Injectors, 26psi
1998 Eclipse GSX 2.3L Stroker, AEM EMS Converted to Speed Density, FP3065 Turbo, 35psi , and so on...
#62284, "RE: got sum rod knock" In response to Reply # 9 Dec-16-03 04:24 PM by 97eclipseRS
hmmm.. doesn't sound like rod knock. it sounds like an exhaust leak, but since it's like 25 degrees here now, i haven't felt like finding the leak. i was just wondering if lifter tick sounds anything like that. weird thing is, like i said, it goes away after it's running for like 1 min. i'll do a comp test anyway, but i highly doubt it's anything to do w/ the pistons/ring lands. i've drivin' about 4k miles with this sound at startup, and it runs better than ever and absolutely no blowby. there has never been any oil at all in the catchcan. the noise sounds like a "puff puff puff puff puff..." about as fast as the exhaust pulse.
EDIT: haha, i just realized that you were answering the question of the person that started the thread.. long day
#62288, "RE: got sum rod knock" In response to Reply # 10
If it was rod knock, it shouldnt get better as the engine heats up....it should actually get worse, and increase sound with increased engine RPM. Id say its lifter tick. or piston slap. is your engine rebuilt? get a mechanics stethoscope and listen on your engine, and see if the noise is oulder down near the block, or up at the head. that'll give you a general idea. 1999 Black C5 1997 Silver RS Wiseco 8.8:1 Pistons(back to low compression!) Eagle Rods T3/T4 Turbo Custom FMIC Greddy Exhaust 390's Most current 1/8th mile time: 8.3@90mph 2.015 60'(Nitto Drag radials, i suck)
#62300, "RE: got sum rod knock" In response to Reply # 11
You can use a long screwdriver. Place one end were you think the noise is coming and put the ear in the other end. You will hear the noise traveling trhough the screwdriver. This way you can isolate the noise. Try it on the head, the top of the block, in the bottom of the block and in the oil pan.
Stock Rebuild Block, Custom Turbo Kit: Custom 3" Downpipe, TEO4H Turbocharger : 10-12 psi, Starion Intercooler, Custom IC Piping, HKS By-pass, HKS AIC, (4) 330 cc extra injectors, Autometer Gauges
#62302, "RE: got sum rod knock" In response to Reply # 11
Originally posted by Nitrous_RS1997 If it was rod knock, it shouldnt get better as the engine heats up....it should actually get worse, and increase sound with increased engine RPM. Id say its lifter tick. or piston slap. is your engine rebuilt? get a mechanics stethoscope and listen on your engine, and see if the noise is oulder down near the block, or up at the head. that'll give you a general idea. 1999 Black C5 1997 Silver RS Wiseco 8.8:1 Pistons(back to low compression!) Eagle Rods T3/T4 Turbo Custom FMIC Greddy Exhaust 390's Most current 1/8th mile time: 8.3@90mph 2.015 60'(Nitto Drag radials, i suck)
You put it perfectly, I would def recommend a thicker oil and see if the noise thins. When the knock is at it's worst you can feel it pretty good in the clutch.
*Skrilla "Honest officer, I thought you were trying to race me" Talon: 1st 2.4L '97 Prelude '04 350Z
Originally posted by YourInMyMirror95GS dick teaser's should be rounded up and shot in the forehead
Originally posted by etx Good luck man! Project 'STFU Brian your talon is dead meat' should be on it's feet soon!
Originally posted by Dark0ne Thanks. Now excuse me while i fuck your sister.
#62314, "RE: got sum rod knock" In response to Reply # 6
Originally posted by TXrepresent IF you have a slight rod knock, try changing the oil to a regular 20W50. The Mobil one might be too thin for your engine. Don't forget to change to a new oil filter too. This wouldn't hurt to try Plus if you get WalMart brand oil and filter it should only cost you about $11.
Thicker oil may be a good idea, but i'm pretty sure once you've "trained" an engine for synthetic, as in you've run synthetics in it for a long time, you really can't go back...
It could be an old wive's tale though, only minus the "old wife".
Vandy
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Plus if you get WalMart brand oil and filter it should only cost you about $11.
