Don't think you need a 3-bolt cam? - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

SNSSTR · 01-14-2014, 11:23 PM

Don't think you need a 3-bolt cam? Think again...the following damage occurred at idle while the car was warming up. I will be honest and say that the lifters did grind the cam lobes hard due to improper oil...shouldn't have been running Mobil 1. I know that now.

Pictures are self-explanatory.

mikeyg36 · 01-14-2014, 11:41 PM

mrimpala02 · 01-15-2014, 12:44 AM

What oil do most recommend? My turner replaced oil with Mobile 1 syn when cam install was done. They also run the same oil on 700+ hp builds. Hmmm ....?

Rhino79 · 01-15-2014, 03:34 AM

The mobile 1 is fine, but there may have been debris on the cam from install, or the cam core was not the 8620 hardened version. We use Mobil on a lot of our builds, but we prelube the cam with non synthetic for install.

grocerygetter · 01-15-2014, 08:08 AM

yeah...and let's say you did have a 3bolt...somthing caused the resistance that sheered the pin and bolt. That would have still been there and still damaged valve train and what not.
Sorry to hear about that man.

DesertCamaro · 01-15-2014, 08:19 AM

Oh boy, that's heartbreaking. I just pulled the AMC 401 out of my buddy's CJ over the weekend. PO swapped in pistons that were too tall, and 5 of the 8 hit the head and were all cracked.

Never a good feeling to open a motor and see that.

SNSSTR · 01-15-2014, 08:23 AM

Quote:

Originally Posted by grocerygetter

yeah...and let's say you did have a 3bolt...somthing caused the resistance that sheered the pin and bolt. That would have still been there and still damaged valve train and what not.
Sorry to hear about that man.

Not necessarily, pin may have sheared on its own accord possibly from racing it or cold temps, who knows. But I do understand what you're getting at with that statement and it's kinda like "what do you want to be the weakest link" it will always be something...just a matter of what it is I guess.

Bo White · 01-15-2014, 08:24 AM

Yep, the pin is only there for indexing purposes only. The big bolt and high torque value is what keeps the sprocket stationary. Early on some single bolts failed because the pin was too long and wasn't allowing the bolt a true torque.

ROD_SS · 01-15-2014, 08:29 AM

Subscribing because I want a cam in my future. Curious to find out what went wrong

grocerygetter · 01-15-2014, 08:31 AM

Quote:

Originally Posted by Bo White

Yep, the pin is only there for indexing purposes only. The big bolt and high torque value is what keeps the sprocket stationary. Early on some single bolts failed because the pin was too long and wasn't allowing the bolt a true torque.

I heard that as well. But those were old cam cores and that was a while back in one bolt design. Also read about the non-hardened cams having isues with that and wear overall.
So that brings up a good question...what are we looking at? Which motor, which cam, mileage?

SNSSTR · 01-15-2014, 09:11 AM

Well, it's an LS3, cam was put in at 12,000 miles and car now has 20,000 miles. Cam is 6 months old. Comp Cam specs are 219/235 .607/.619 113LSA. Not sure what material it was made out of.

The guy tearing it apart also said there was some valve float. Apparently the Lunati springs didn't hold. Also had trunion upgrade installed at the time of cam install.

Kelly@PCMofNC · 01-15-2014, 10:53 AM

Man that sucks! Those valves look like they're just swaying in the wind!

10aSSee D · 01-15-2014, 11:10 AM

ADM just did my build and my cam was trashed as well, you could see the wear on the lobes and that cam had about 4 thousand miles on it. I think the metal was soft, it was a comp cam. ADM told me to run Mobil 1 15w50 in mine, it has a lot of zinc in it.

woodside783 · 01-15-2014, 11:22 AM

Motor oil would have nothing to do with this accident I used 10w30

Tommy Boy

01-14-2014, 11:23 PM	#1
SNSSTR All About That Speed Drives: 2010 Camaro 2SS/RS Join Date: Mar 2013 Location: Memphis Posts: 1,181	Don't think you need a 3-bolt cam? Don't think you need a 3-bolt cam? Think again...the following damage occurred at idle while the car was warming up. I will be honest and say that the lifters did grind the cam lobes hard due to improper oil...shouldn't have been running Mobil 1. I know that now. Pictures are self-explanatory. __________________ 2010 SS M6 \| 416 CI \| H/C/I \| GPI TUNED \| SNSSTR

01-15-2014, 12:44 AM	#3
mrimpala02 Drives: Black 2SS RS w/White Stripes Join Date: Mar 2011 Location: Katy, TX Posts: 775	What oil do most recommend? My turner replaced oil with Mobile 1 syn when cam install was done. They also run the same oil on 700+ hp builds. Hmmm ....? __________________ 2010 2SS/RS "ChriSStine": Pat G Custom Turbo CamMotion Camshaft \| AGP TT BB Garrett 62/65's \| AGP/Fore Triple Pumps \| ID1700X Injectors \| Alky Control Twin Nozzle Meth \| Custom 3" Exhaust \| 3.27 gear set w/ Tru Trac \| McLeod Twin RXT \| Barton Short Throw Shifter \| 6th Gen ZL1 Wheels \| BMR 1.4" drop springs \| Pfadt rear trailing arms & tie rods \| Installed by Me & Tuned by Pat G

01-15-2014, 08:08 AM	#5
grocerygetter instigator Drives: 2020 6.2 Trail Boss, 2022 XC90 Join Date: Jan 2010 Location: 72034 Posts: 3,979 View My Garage	yeah...and let's say you did have a 3bolt...somthing caused the resistance that sheered the pin and bolt. That would have still been there and still damaged valve train and what not. Sorry to hear about that man. __________________ -John S.

01-15-2014, 08:19 AM	#6
DesertCamaro Drives: Fast Join Date: Mar 2011 Location: Phoenix, AZ Posts: 785	Oh boy, that's heartbreaking. I just pulled the AMC 401 out of my buddy's CJ over the weekend. PO swapped in pistons that were too tall, and 5 of the 8 hit the head and were all cracked. Never a good feeling to open a motor and see that. __________________ 2014 SS

01-15-2014, 08:24 AM	#8
Bo White Drives: 2015 Summit White 2SS 1LE Join Date: Feb 2012 Location: Vance Alabama Posts: 8,019	Yep, the pin is only there for indexing purposes only. The big bolt and high torque value is what keeps the sprocket stationary. Early on some single bolts failed because the pin was too long and wasn't allowing the bolt a true torque. __________________ Retired wanna be cylinder head porter 2015 2SS 1LE Clutch reservoir, Vararam DRX, ported TB, TSP 2" headers, MGW shifter Totalled: 2010 1SS Wilkes Performance/Eagle 416 shortblock, TSP custom valvetrain, PRC 260 heads, Edelbrock Pro Flo 102, th400 swap, 8" PTC 5500 stall= 535/435 at the wheels tuned Gen 3 Performance and Dyno 10.97 @ 124 full weight in 3100 DA CamaroFest X

01-14-2014, 11:41 PM	#2
mikeyg36 Drives: 2015 Z/28 #533 Join Date: Jul 2012 Location: NY Posts: 6,731

01-15-2014, 03:34 AM	#4
Rhino79 Drives: 2010 Camaro SS L99/Auto Join Date: Jul 2011 Location: Cabot, AR Posts: 2,827 View My Garage	The mobile 1 is fine, but there may have been debris on the cam from install, or the cam core was not the 8620 hardened version. We use Mobil on a lot of our builds, but we prelube the cam with non synthetic for install.

01-15-2014, 08:29 AM	#9
ROD_SS Drives: 2013 1SS Camaro and a truck Join Date: Apr 2011 Location: San Antonio,TX Posts: 1,081	Subscribing because I want a cam in my future. Curious to find out what went wrong __________________ ADM tuned (465 rwhp / 442 torque) Mods- CAI, kooks long tube headers, & ADM stage 2 cam

01-15-2014, 09:11 AM	#11
SNSSTR All About That Speed Drives: 2010 Camaro 2SS/RS Join Date: Mar 2013 Location: Memphis Posts: 1,181	Well, it's an LS3, cam was put in at 12,000 miles and car now has 20,000 miles. Cam is 6 months old. Comp Cam specs are 219/235 .607/.619 113LSA. Not sure what material it was made out of. The guy tearing it apart also said there was some valve float. Apparently the Lunati springs didn't hold. Also had trunion upgrade installed at the time of cam install. __________________ 2010 SS M6 \| 416 CI \| H/C/I \| GPI TUNED \| SNSSTR

01-15-2014, 10:53 AM	#12
Kelly@PCMofNC Drives: 2010 RS/SS Join Date: Dec 2010 Location: Mooresville, NC Posts: 959	Man that sucks! Those valves look like they're just swaying in the wind!

01-15-2014, 11:10 AM	#13
10aSSee D Drives: Silver 2010 SS Camaro Join Date: Jul 2009 Location: TN Posts: 2,562	ADM just did my build and my cam was trashed as well, you could see the wear on the lobes and that cam had about 4 thousand miles on it. I think the metal was soft, it was a comp cam. ADM told me to run Mobil 1 15w50 in mine, it has a lot of zinc in it. __________________ MODS: ADM built 417, 2.9L Whipple with 3.250 pulley, ADM ported and polished LSA heads,ADM stage3 cam,ADM LSA belt drive system,ADM CAI race scoop, ADM dual fuel pumps, ID 850's, BMR full suspension, Gforce 9 inch kit with 3.5 inch driveshaft, Street Slayer twin carbon clutch, Lingenfelter oil seperator. Tuned by built by ADM Performance, 763rwhp,705rwtq

01-15-2014, 11:22 AM	#14
woodside783 Casey Woodside Drives: a very fun car Join Date: Jun 2010 Location: Tn Posts: 1,906	Motor oil would have nothing to do with this accident I used 10w30 Tommy Boy __________________ Instagram @caseywoodside http://youtu.be/CSc9aPh_X_w