piston slap *WTF*
01-28-2008, 05:23 PM
#1
Teching In
Thread Starter
Join Date: Jan 2008
Posts: 25
Likes: 0
Received 0 Likes
on
0 Posts
piston slap *WTF* so my car was makeing a tapping, knocking sound on cold starts and the noise would fade off as the engine would get warm. i checked the oil no problems there and the car has low miles so i just couldnt belave it had a bearing issue. my one buddy is a gm tech and told me the ls1 has a problem with piston slap. is this true. and if it is have any of u had any issues with this before and if i do have piston slap does that mean its time to tear her down and rebuild.... thanks
01-28-2008, 05:26 PM
#2
TECH Fanatic
iTrader: (9)
Join Date: Jan 2006
Location: Savannah, GA
Posts: 1,562
Likes: 0
Received 0 Likes
on
0 Posts
yes thats normal. what you are hearing is it a ticking? all of them do it. nothing to worry about. unless it isnt stock than you need to check your piston to valve Clarence
01-28-2008, 05:33 PM
#5
TECH Fanatic
iTrader: (15)
Join Date: Dec 2005
Location: _Nor caL_ (Bay areA)
Posts: 1,588
Likes: 0
Received 0 Likes
on
0 Posts
my car does it do! i hate it! i can really hear it with cutout closed. It compleatly goes away once car is warm..but it annoys me when car is cold. people think its something wrong with my car. i tell them naw its normal. its called piston slap. and they look at me like i just called them an ******** or something..lol.. why do they do this?
Trending Topics
01-28-2008, 05:38 PM
#9
TECH Fanatic
iTrader: (9)
Join Date: Jan 2006
Location: Savannah, GA
Posts: 1,562
Likes: 0
Received 0 Likes
on
0 Posts
what helps out with alot of people is change to royal purple 5w30 it almost eliminates. i dont have it. but iv ran RP since i had it.
there is a thread on this to just search for it.
but try that and see if that helps
there is a thread on this to just search for it.
but try that and see if that helps
01-28-2008, 10:56 PM
#17
Staging Lane
Join Date: Oct 2006
Location: Iowa
Posts: 83
Likes: 0
Received 0 Likes
on
0 Posts
I have a 99' FRC Vette that has had a problem similar to this from the day I bought it. I have been told by numerous people that the LS1 just sounds like that and not to worry about it, but I haven't been able to stop worrying about it since day one.
Mine is a very light ticking noise. It's like a baseball card in the spokes of a bicycle. The intesity of the ticking increases and falls with RPM. It's never got louder, it's never got quieter. I've owned the car over a year now, and it's done it the entire time. It dyno'd at 312rwhp(SAE) with only B&B Route 66 exhaust. I'm about to the point where I'm going to bring it to a local Chevy dealer and see what they think, I just don't know.
How does one come to a final decision of whether or not this is a HUGE problem without tearing down the entire motor to carefully inspect every single part?
Mine is a very light ticking noise. It's like a baseball card in the spokes of a bicycle. The intesity of the ticking increases and falls with RPM. It's never got louder, it's never got quieter. I've owned the car over a year now, and it's done it the entire time. It dyno'd at 312rwhp(SAE) with only B&B Route 66 exhaust. I'm about to the point where I'm going to bring it to a local Chevy dealer and see what they think, I just don't know.
How does one come to a final decision of whether or not this is a HUGE problem without tearing down the entire motor to carefully inspect every single part?
01-29-2008, 12:13 AM
#20
11 Second Club
iTrader: (3)
Join Date: Jul 2005
Location: Daytona Beach, Fl / Stuart, Fl
Posts: 215
Likes: 0
Received 0 Likes
on
0 Posts
Lifter?? That what i thought mine was, and i just noticed it in the last month, but i'm doing heads and cam soon so i didn't worry bout it