Nicks Official Motor Report
Le Mans Master
Joined: Aug 2005
Posts: 5,130
Likes: 3
From: Winter Park FL
dude rule out other **** before you do that....clutch and headers for one
maybe pull the inspection cover for the clutch and take a peak
smoke 10 cigarettes at ones and blow lots of smoke into your engine bay see if theres a leak on your headers somewhere....im in bottom end ****ed denial sorry
maybe pull the inspection cover for the clutch and take a peak
smoke 10 cigarettes at ones and blow lots of smoke into your engine bay see if theres a leak on your headers somewhere....im in bottom end ****ed denial sorry
Metal in the oil would hint at what? Bearings? Maybe tomorrow if its not snowing I'll drain the oil and see what I see.
Le Mans Master
Joined: Aug 2005
Posts: 5,130
Likes: 3
From: Winter Park FL
Team Owner
Joined: Feb 2001
Posts: 27,254
Likes: 137
From: Short Hills, NJ
Doesn't make sense that it would just suddenly start doing that with nothing else being bent or broken/no other symptons but hey, anything is possible.
If so, that would also likely mean that once you put it all back together and tighten it all back down that the noise will be gone too.
Le Mans Master
Joined: Sep 2006
Posts: 9,112
Likes: 167
From: PA
Hell after the compression test give that a shot for ****s and giggles..... can't hurt much more IMO. I forget what do the roller rockers get torqued down to is it 35ftlbs?
Thread Starter
Le Mans Master
Joined: Aug 2007
Posts: 6,475
Likes: 297
From: Orange Park FL
Le Mans Master
Joined: Aug 2005
Posts: 5,130
Likes: 3
From: Winter Park FL
Next chance I get I'll drain the oil and see if theres any metal in there.
After that I'm guessing the heads have to come off next to check the lifters. Now when I pull the heads should I drain all the coolant beforehand? I hear pulling hte heads is easier if you remove the water pump so I guess I have to drain it all. Maybe I can get an electric water pump while I'm at it.
Melting Slicks
Joined: Oct 2007
Posts: 2,464
Likes: 2
From: Cedarburg, WI
After I tightened everythig back down I did. It idles smooth at 1k rpms. I had my ear to the motor trying to listen to where the noise was coming from. After everything looking fine I though I'd hear something from somewhere else. The noise is clearly loudest under the valve covers. It sounds like a metal object tapping another metal object.
Next chance I get I'll drain the oil and see if theres any metal in there.
After that I'm guessing the heads have to come off next to check the lifters. Now when I pull the heads should I drain all the coolant beforehand? I hear pulling hte heads is easier if you remove the water pump so I guess I have to drain it all. Maybe I can get an electric water pump while I'm at it.
Next chance I get I'll drain the oil and see if theres any metal in there.
After that I'm guessing the heads have to come off next to check the lifters. Now when I pull the heads should I drain all the coolant beforehand? I hear pulling hte heads is easier if you remove the water pump so I guess I have to drain it all. Maybe I can get an electric water pump while I'm at it.
Melting Slicks
Joined: Jan 2008
Posts: 2,394
Likes: 0
From: Goldsboro NC
nick try pulling the valve covers again....and have someone turn the motor over with your coil packs unplugged....watch all rockers move....try to see if they all move evenly...that might help identify if you have a ailing lifter and wayyyy easier than pullin the heads.....then drain your oil that you have 100 miles on and check that...make sure you have a magnet handy...stick it in the oil stream as its draining see what you find
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Le Mans Master
Joined: Aug 2005
Posts: 5,130
Likes: 3
From: Winter Park FL
nick try pulling the valve covers again....and have someone turn the motor over with your coil packs unplugged....watch all rockers move....try to see if they all move evenly...that might help identify if you have a ailing lifter and wayyyy easier than pullin the heads.....then drain your oil that you have 100 miles on and check that...make sure you have a magnet handy...stick it in the oil stream as its draining see what you find
Literally 100 miles. Should be easy to spot some metal in that.
Drifting
Joined: Jun 2006
Posts: 1,702
Likes: 1
As I posted in the clutch has been installed thread - "lifter" and I am still leaning in that direction.Based on all the visual inspection of the up top valve train (springs,rockers,and push rods)that appears to be the only up top components left to be checked.Of course if the leak down (compression)check proves to be suspect,then obviously that means the motor needs a rebuild....hopefully that is not the case.
Come on everyones doing it!
Drifting
Joined: Jun 2006
Posts: 1,702
Likes: 1
Yeah,Nick you would be one bad azz dude! 
Le Mans Master
Joined: Aug 2005
Posts: 5,130
Likes: 3
From: Winter Park FL
As I posted in the clutch has been installed thread - "lifter" and I am still leaning in that direction.Based on all the visual inspection of the up top valve train (springs,rockers,and push rods)that appears to be the only up top components left to be checked.Of course if the leak down (compression)check proves to be suspect,then obviously that means the motor needs a rebuild....hopefully that is not the case.
Thread Starter
Le Mans Master
Joined: Aug 2007
Posts: 6,475
Likes: 297
From: Orange Park FL
After I tightened everythig back down I did. It idles smooth at 1k rpms. I had my ear to the motor trying to listen to where the noise was coming from. After everything looking fine I though I'd hear something from somewhere else. The noise is clearly loudest under the valve covers. It sounds like a metal object tapping another metal object.
Next chance I get I'll drain the oil and see if theres any metal in there.
After that I'm guessing the heads have to come off next to check the lifters. Now when I pull the heads should I drain all the coolant beforehand? I hear pulling hte heads is easier if you remove the water pump so I guess I have to drain it all. Maybe I can get an electric water pump while I'm at it.
Next chance I get I'll drain the oil and see if theres any metal in there.
After that I'm guessing the heads have to come off next to check the lifters. Now when I pull the heads should I drain all the coolant beforehand? I hear pulling hte heads is easier if you remove the water pump so I guess I have to drain it all. Maybe I can get an electric water pump while I'm at it.
Le Mans Master
Joined: Aug 2005
Posts: 5,130
Likes: 3
From: Winter Park FL
Racer
Joined: Feb 2007
Posts: 328
Likes: 0
From: Orange County California
I'd put money on it being a lifter. We have had a few LS based motors in the dealership here recently (I'm a GM tech) with a sound just like you're describing and every time it turned out to be a bad lifter except once it was a broken rocker. I know how you feel, we couldn't decide if we should pull the heads or pull the trans and look for a cracked flexplate. If it is a shot lifter you will probably need a cam as well. Might just be an opportunity to go bigger!
Le Mans Master
Joined: Aug 2005
Posts: 5,130
Likes: 3
From: Winter Park FL
http://www.youtube.com/watch?v=eLdMNqgIfSo
That is the EXACT noise coming from my motor.
Gotta be lifter, can't see how it can be anything in the bottom end now.
Now I just have to decide on whether or not I want to tackle this myself. Any input on this project? Writeups or anything?
Valve lash? Anything I gotta do or just torque the rockers to spec?
That is the EXACT noise coming from my motor.
Gotta be lifter, can't see how it can be anything in the bottom end now.
Now I just have to decide on whether or not I want to tackle this myself. Any input on this project? Writeups or anything?
Valve lash? Anything I gotta do or just torque the rockers to spec?
Last edited by nickolbag; Feb 19, 2009 at 09:12 PM.
Thread Starter
Le Mans Master
Joined: Aug 2007
Posts: 6,475
Likes: 297
From: Orange Park FL
http://www.youtube.com/watch?v=eLdMNqgIfSo
That is the EXACT noise coming from my motor.
Gotta be lifter, can't see how it can be anything in the bottom end now.
Now I just have to decide on whether or not I want to tackle this myself. Any input on this project? Writeups or anything?
Valve lash? Anything I gotta do or just torque the rockers to spec?
That is the EXACT noise coming from my motor.
Gotta be lifter, can't see how it can be anything in the bottom end now.
Now I just have to decide on whether or not I want to tackle this myself. Any input on this project? Writeups or anything?
Valve lash? Anything I gotta do or just torque the rockers to spec?
Do it yourself Nick, then you learn how everything really works ! Just do it on the weekend. I can't take calls at work !
Pitt