Broken valve spring - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Zulu28 · 12-12-2018, 08:59 AM

Have not been here for awhile. 2014 Z28 with air. 95K miles daily driver. Broken intake valve spring #6 cylinder. Just started missing real bad. No codes, no check engine light. Did not drop the valve. Changed all 16 springs JIC. Runs like new again. FYI - probably a good idea to change them at regular intervals. Cheap insurance. I had a Katech torquer cam in my 2008 Z06 with 921 springs and changed them every 25K miles. Thought these would last for the life of the LS7 but apparently not.

2thousand2 · 12-12-2018, 09:27 AM

Good info thanks for sharing!

MX621 · 12-12-2018, 09:57 AM

95k miles, you may have the highest mile z/28. Any mods to the car? Care to share how ownership has been ( guess only matters if your the original owner ) ?

Juiced1 · 12-12-2018, 10:14 AM

The lift on the LS7 cam is pretty aggressive from the factory. Not to many see that kind of mileage though.

Zulu28 · 12-12-2018, 10:39 AM

Daily driver, 100 miles round trip to work and back home. Car has been great. Never tracked. Headers and a tune. More fun to drive than my Z06 with 545HP at the wheels. Original owner. Never redlined. Followed the 'severe' service schedule.

pat_t · 12-12-2018, 10:47 AM

95k miles! That's awesome. Good man and keep it up, these cars are meant to be driven. Hope to hear you cross the 100k mile mark in it.

I have a Lexus I'm determined to get past 250k miles, only halfway there so far

2SSRS@Gen5diy · 12-12-2018, 12:20 PM

Springs brake, fact of life we had it one one of the 2011 cars we have , car only had 57K when it happened, got a GMC with a 6.0 in it has 278K got it with 8 mi on it, still going strong, other then a CIA on it its still the way it came from the plant.

MrRaZ28 · 12-12-2018, 03:23 PM

HA! Guess that answers my question on the highest mileage Z28 in the country. You have me beat by 43k miles sir! I (as far as I know now) gladly take my 2nd place in line.

X77-69z28 · 12-12-2018, 05:41 PM

He's got me beat by over 94k! I gotta get out more!!

1970judge · 12-12-2018, 06:33 PM

Not unheard of. LS7 cam is aggressive. I've seen a few broken valve springs on higher mileage cars. My brother truck ground the came at 100k, then ran for another 150k. My little brother has the exact same truck, with 300k, no issues. We are a family that spins LS engines until they physically will not crank. Like anything in high production, sometimes a bad apple does not run its full LC.

In other news, this is still the coolest thread I have read on here in a really long time. 95k miles.

Supercup · 12-12-2018, 09:26 PM

94K - that is how it should be! A car that is enjoyed everyday. glad to hear it is back up and running for you.

Would be interested to know if you are still on your original rotors and how many sets of pads you have been through in 94K?

Thanks for posting.

joelster · 12-13-2018, 07:03 AM

90,000 miles and the valve guides are still in order. Makes you want to show all of the naysayers that say it needs to be addressed asap.

MX621 · 12-13-2018, 07:22 AM

Quote:

Originally Posted by joelster

90,000 miles and the valve guides are still in order. Makes you want to show all of the naysayers that say it needs to be addressed asap.

just because it hasn't dropped a valve doesn't mean the valves/guides are in spec. I'm curious to why the z/28 community thinks this isn't a issue? once my warranty is up, 1/2020 ill be pulling my heads to check. I hope your right.

zman1969 · 12-13-2018, 08:04 AM

wasn't this covered by GM 5/100? hows your car holding up with the miles? mine just rolled 9K gonna hate to see it get into 5 figures giggle

12-12-2018, 08:59 AM	#1
Zulu28 Drives: 2019 Camaro ZL1 Join Date: Jun 2015 Location: Nashville, TN. Posts: 27	Broken valve spring Have not been here for awhile. 2014 Z28 with air. 95K miles daily driver. Broken intake valve spring #6 cylinder. Just started missing real bad. No codes, no check engine light. Did not drop the valve. Changed all 16 springs JIC. Runs like new again. FYI - probably a good idea to change them at regular intervals. Cheap insurance. I had a Katech torquer cam in my 2008 Z06 with 921 springs and changed them every 25K miles. Thought these would last for the life of the LS7 but apparently not.

12-12-2018, 10:39 AM	#5
Zulu28 Drives: 2019 Camaro ZL1 Join Date: Jun 2015 Location: Nashville, TN. Posts: 27	Broken valve spring Daily driver, 100 miles round trip to work and back home. Car has been great. Never tracked. Headers and a tune. More fun to drive than my Z06 with 545HP at the wheels. Original owner. Never redlined. Followed the 'severe' service schedule.

12-12-2018, 05:41 PM	#9
X77-69z28 Drives: 69 Z/28, 70 Z28, 99SS, 15 Z/28 2018 Join Date: Sep 2016 Location: Long Island, NY Posts: 403	He's got me beat by over 94k! I gotta get out more!! __________________ Buddy 69 Z/28 burnished brown, m-21 owned since 1978 70Z/28 forest green M40 CE block PROJECT 99 SS hugger orange 6spd no t-tops 1 of 54 15 Z/28 white AC, radio

12-13-2018, 07:03 AM	#12
joelster Drives: '94 Z28+ '15 Z/28 Join Date: Jun 2009 Location: Cheektowaga, NY Posts: 1,280	90,000 miles and the valve guides are still in order. Makes you want to show all of the naysayers that say it needs to be addressed asap. __________________ 1973 Mach 1, 351C cruiser '15 Z/28 Red Hot, A/C 1980 Z28- resto-mod project 1979 Y84 Trans Am 1986 IROC-Z

12-13-2018, 08:04 AM	#14
zman1969 Drives: 1969 R/S Z28 302 m20 Endura Join Date: Sep 2009 Location: DFW Posts: 432	wasn't this covered by GM 5/100? hows your car holding up with the miles? mine just rolled 9K gonna hate to see it get into 5 figures giggle __________________ 1969 RS Z/28 302 1969 Firebird LS6-6 speed TA clone 2015 Zl1

12-12-2018, 09:27 AM	#2
2thousand2 Drives: 1997 Camaro SS Join Date: Jan 2010 Location: STL Posts: 106	Good info thanks for sharing!

12-12-2018, 09:57 AM	#3
MX621 Drives: 2014 z28 Join Date: Oct 2018 Location: DE Posts: 171	95k miles, you may have the highest mile z/28. Any mods to the car? Care to share how ownership has been ( guess only matters if your the original owner ) ?

12-12-2018, 10:14 AM	#4
Juiced1 Account Suspended Drives: 2012 2SS CAMARO 45th Join Date: Apr 2011 Location: St. Charles, IL Posts: 18,663	The lift on the LS7 cam is pretty aggressive from the factory. Not to many see that kind of mileage though.

12-12-2018, 10:47 AM	#6
pat_t Drives: . Join Date: Jun 2016 Location: . Posts: 589	95k miles! That's awesome. Good man and keep it up, these cars are meant to be driven. Hope to hear you cross the 100k mile mark in it. I have a Lexus I'm determined to get past 250k miles, only halfway there so far

12-12-2018, 12:20 PM	#7
2SSRS@Gen5diy Drives: 2014 Z/28 #82+#192, 18ZLE 66Nova Join Date: Oct 2008 Location: By the lake in AZ Posts: 15,719 View My Garage	Springs brake, fact of life we had it one one of the 2011 cars we have , car only had 57K when it happened, got a GMC with a 6.0 in it has 278K got it with 8 mi on it, still going strong, other then a CIA on it its still the way it came from the plant.

12-12-2018, 03:23 PM	#8
MrRaZ28 @MrRaZ28 Drives: 2014 Z28 #80 Join Date: Oct 2009 Location: Cincinnati, OH Posts: 590 View My Garage	HA! Guess that answers my question on the highest mileage Z28 in the country. You have me beat by 43k miles sir! I (as far as I know now) gladly take my 2nd place in line.

12-12-2018, 06:33 PM	#10
1970judge Drives: 2015 Z/28, 2007 HHR Join Date: Jan 2014 Location: Republic of Texas Posts: 1,148	Not unheard of. LS7 cam is aggressive. I've seen a few broken valve springs on higher mileage cars. My brother truck ground the came at 100k, then ran for another 150k. My little brother has the exact same truck, with 300k, no issues. We are a family that spins LS engines until they physically will not crank. Like anything in high production, sometimes a bad apple does not run its full LC. In other news, this is still the coolest thread I have read on here in a really long time. 95k miles.

12-12-2018, 09:26 PM	#11
Supercup Life Is Short Enjoy It! Drives: Original Owner 15 Z/28 #934 Join Date: Sep 2016 Location: S. Cal Posts: 891	94K - that is how it should be! A car that is enjoyed everyday. glad to hear it is back up and running for you. Would be interested to know if you are still on your original rotors and how many sets of pads you have been through in 94K? Thanks for posting.