You are browsing camaro5 
 |
|
06-18-2020, 03:51 PM
|
#1 |
 Drives: 67 C10 SWB, 08 Z06, 01 F150 Join Date: Jun 2020
Location: Alabama
Posts: 18
|
Scuff on Cylinder Wall - how bad?
Hey guys, I wanted to run this past you. I have an L99 block and I took the heads off and found this small scuff on the side wall. It's not big enough for my fingernail to catch on it, but when I run my finger over it I can just slightly feel it. Does this mean I should completely disassemble and rebuild? Should I let it go and just continue with my build? I am going to take it to a local machine shop today or tomorrow to see what they think, but wanted to ask you guys.
Thanks in advance, ZSH |
|
|
|
06-18-2020, 06:04 PM
|
#2 |
|
Account Suspended
|
A "scuff" would mean it did not wear the metal off there, it could be a carbon
deposit. When you scuff the floor with your shoes, you leave rubber behind that can be cleaned off the floor. If that is a scuff, it's probably okay. If it took metal off by scraping, then not really a good thing. No cylinder wall is going to be spotless after there are some miles on it. Looks like it's where the ring ends meet up, for one of the compression or oil rings. |
|
|
|
|
06-18-2020, 06:09 PM
|
#3 |
|
Drives: 67 C10 SWB, 08 Z06, 01 F150 Join Date: Jun 2020
Location: Alabama
Posts: 18
|
ah, it did take a little of the metal off, but not enough for my finger nail to catch on. I can feel the slightest valley though. What would you do? Not looking to spend a lot of money, but want a semi reliable L99 motor.
|
|
|
|
|
06-18-2020, 07:07 PM
|
#4 |
    
|
I'd put it together and run it.
__________________
745RWHP/634RWTQ on 93 @ 10psi
806/676 on E85 @ 10psi  COTW 9/8/14 |
|
|
|
|
06-18-2020, 07:56 PM
|
#5 | |
      
Drives: 2010 CGM 2SS/RS LS3 Swapped A6 Join Date: Sep 2016
Location: Spring Hill, FL
Posts: 4,578
|
Quote:
__________________
2010 CGM Camaro 2SS LS3 Swapped A6 - GPI LS3 SS1 .647/.638, (224/237, 112 +4, 7º overlap) on CamMotion 8620 core, BTR Platinum .660" Dual Spring kit w/titanium retainers, CHE bronze trunnion upgrade, stock heads milled @ .015, Melling HV 10296 oil pump, TSP 1-7/8" long tube headers (W/Catless Off-road Pipes), Corsa Xtreme 3" Catback, GPI Ported/Rod Mod Intake, Stage 2 Ported Throttle Body, Vararam OTR CAI, Mike Norris Gen 2 catch can + GM 1LE clean side separator, 160º thermostat - Megan Racing adjustable coilovers (lowered 1.75"), MRR M017 10/11" wheels-Tuned by Ryan @ GPI
|
|
|
|
|
|
06-18-2020, 09:01 PM
|
#6 |
|
Drives: 67 C10 SWB, 08 Z06, 01 F150 Join Date: Jun 2020
Location: Alabama
Posts: 18
|
You guys think I should be able to get like 10k miles out of it if all else goes well? No piston slap or crazy engine oil burning? This won't be for a track truck, just daily driver/get on it every now and then.
|
|
|
|
|
06-18-2020, 09:50 PM
|
#7 |
|
Account Suspended
|
How many miles are on it, NOW? I can still see the honing cross-hatch pattern on the
walls. That's how fine the process is now days. I don't think that will cause any issues. If you do a compression test, and it's good, then you're good. Like I said, it looks like where one of ring ends meet up. |
|
|
|
|
06-19-2020, 07:42 AM
|
#8 |
Drives: 2011 Camaro 2SS LS3 Whipple Join Date: May 2019
Location: Connecticut
Posts: 1,925
|
Hard to say. I had a chevy 350 with a line in the wall I could catch a fingernail on. I didn't want to bore it so I honed it, could still feel the line. I ran it for another 50k miles. I did have to change that plug again though. Looks like the very start of a problem possibly but it will be fine for quite some time I'm sure.
__________________
Whipple 2.9 CAI ID1050x injectors ZL1 Pump JRE FPCM JMS Voltage booster JRE Rough Idle blower cam BTR .660 springs CHE trunnion kit 1 7/8 Speed Engineering Borla Atak JRE scoop 1.5" lowering springs BMR trailing arms and toe links Cradle inserts 704WHP 603WTQ 93 octane
|
|
|
|
|
06-19-2020, 11:10 AM
|
#9 |
Drives: 2015 1LE Join Date: Oct 2015
Location: Cleveland, OH
Posts: 1,485
|
Its fine,
__________________
2015 1LE, TSP 225/236 113+3, VMAX Throttle Body, CAI with race scoop, GPI Ported Intake, Land Speed Stage 2 Heads, 1-7/8 headers, NPP exhaust, 25% Fluidampr, LT1-S Monster Clutch, 485 RWHP & 444 TQ
 |
|
|
|
|
06-19-2020, 12:22 PM
|
#10 |
Drives: 2010 Camaro 2SS/RS ABM 6M Join Date: Jul 2017
Location: Kansas
Posts: 617
|
It wouldn't hurt to do a compression test, but from the looks, and the fact it isn't catching your nail...I would personally run it (unless aforementioned comp test fails)
__________________
2010 ABM 2SS/RS LS3 6 Speed -- Rotofab CAI | Speed Engineering 1 7/8" Longtubes w/ cat Delete | Magnaflow competition catback | TSP 231/246 cam| TSP/PAC .660" Spring Kit | TSP CNC Ported Heads | Bo White PTB | GPI Ported/RM Intake | 3.91's | BC Catch Can | MGW Shifter | BMR 1" Drop Springs | BMR Trailing arms/Toe Rods/Rear UCA Bushings | Pegasus Subframe Mounts
 |
|
|
|
|
06-19-2020, 04:28 PM
|
#11 |
 
Drives: 2015 Summit White 2SS 1LE Join Date: Feb 2012
Location: Vance Alabama
Posts: 8,020
|
Send it. One of mine is 100 times worse
|
|
|
|
|
06-20-2020, 12:24 AM
|
#12 |
|
GrINned & JUICEd
Drives: 15STI, 10Expy, 10 2SS/RS M6, 47KB1 Join Date: Nov 2009
Location: Pittsburgh, PA
Posts: 1,247
|
Run it. In the middle of the cylinder wall and not catching a nail. Looks like the motor is not installed. If so, could pull the piston and check the rings if you really wanted to, I wouldn't.
__________________
GPI SS3 Cam & stuff,N.O. Plate(dedicated fuel tank,progressive,fuel hose upgrade,remote opener,heater,console switches),LNC2000,CTAP,ARH 1 7/8" LTs/gutted cats/X pipe/mufflers,Jet Hot coated LTs,GPI HPT Tune,CAI, Scoop,Rx Catch Can,Gates heater hose relocation, Remote clutch & auto brake res,Metco loop,Momentum Tunnel Brace,TSW Nurb 18",555 & 05,Pfadt trailing arms & toe rods,Autometer WB,Fesler Pillar Pod,LED strips (int),Lloyds floor & trunk mats,LED DRL/front turn & license plate,DRL harness,VLEDs tail lights,Plasticoat Bowties. Ord: Oct 5, 2009 Rec: Nov 19, 2009 13.17@112.6 stock
|
|
|
|
|
06-20-2020, 01:39 AM
|
#13 |
|
Drives: 2010 CGM 2SS/RS LS3 Swapped A6 Join Date: Sep 2016
Location: Spring Hill, FL
Posts: 4,578
|
ZSH, do you know the miles on that block? I am just curious since it still seems to have nice cross hatching.
__________________
2010 CGM Camaro 2SS LS3 Swapped A6 - GPI LS3 SS1 .647/.638, (224/237, 112 +4, 7º overlap) on CamMotion 8620 core, BTR Platinum .660" Dual Spring kit w/titanium retainers, CHE bronze trunnion upgrade, stock heads milled @ .015, Melling HV 10296 oil pump, TSP 1-7/8" long tube headers (W/Catless Off-road Pipes), Corsa Xtreme 3" Catback, GPI Ported/Rod Mod Intake, Stage 2 Ported Throttle Body, Vararam OTR CAI, Mike Norris Gen 2 catch can + GM 1LE clean side separator, 160º thermostat - Megan Racing adjustable coilovers (lowered 1.75"), MRR M017 10/11" wheels-Tuned by Ryan @ GPI
|
|
|
|
|
06-20-2020, 07:12 AM
|
#14 |
|
old school chevy rodder
Drives: 2013 2SS/RS Manual,DM exhaust,CRT Join Date: Jul 2012
Location: Oregon
Posts: 5,587
|
Looks good that's nothing...
__________________
 2021 Wild Cherry ZL1 A10, Sunroof, Data, Carbon, Nav, RotoFab Dry CAI, Elite x2, Borla ATK, Driveshaft shop |
|
|
|
|
|
|
|
 |
|
|
