New Caprice - Discussion forums

The worldwide owner-to-owner online support system for the Chevrolet Caprice PPV
It is currently Mon Jun 25, 2018 3:02 am

All times are UTC [ DST ]




Post new topic Reply to topic  [ 15 posts ]  Go to page 1, 2  Next
Author Message
 Post subject: Spark plug torque specs?
PostPosted: Wed Oct 25, 2017 6:53 pm 
Offline

Joined: Sun Sep 10, 2017 3:10 pm
Posts: 20
Hey guys, anyone know what the spark plug torque down recommendations are for the l77? Just bought ngk iridium IX's. Car only has 69k on the odometer, but we know how they're idled..... So I wanna go ahead and swap them tonight. Advice would be greatly appreciated. It's now my only car and I drive around 60 miles daily.


Top
 Profile  
 
PostPosted: Wed Oct 25, 2017 7:04 pm 
Offline

Joined: Mon Jul 29, 2013 6:44 am
Posts: 1311
Location: Azusa,CA
15 foot lbs. seems to be the consensus from a couple sources.

That is if you can actually get a torque wrench in there!

_________________
Steve Walker
Azusa, CA
'11 PPV 9C3 Huron White


Top
 Profile  
 
PostPosted: Wed Oct 25, 2017 7:08 pm 
Offline

Joined: Sun Sep 10, 2017 3:10 pm
Posts: 20
Do you think it matters? I never torqued my other cars. I'm just really careful with this one becauseI love it so much. And I NEED it.


Top
 Profile  
 
PostPosted: Wed Oct 25, 2017 7:12 pm 
Offline

Joined: Sun Sep 10, 2017 3:10 pm
Posts: 20
And no I won't be able to get one down there, so I assume it doesn't matter lol


Top
 Profile  
 
PostPosted: Wed Oct 25, 2017 7:25 pm 
Offline

Joined: Mon Jul 29, 2013 6:44 am
Posts: 1311
Location: Azusa,CA
Yes it will matter to a degree. We got aluminum heads so overtorque can lead to damage. Do the easily accessible ones first with a torque wrench to get the feel for the correct setting. Then just try to get close on the harder ones.

_________________
Steve Walker
Azusa, CA
'11 PPV 9C3 Huron White


Top
 Profile  
 
PostPosted: Wed Oct 25, 2017 8:58 pm 
Offline

Joined: Sun Aug 09, 2015 5:55 pm
Posts: 294
smwalker wrote:
15 foot lbs. seems to be the consensus from a couple sources.

That is if you can actually get a torque wrench in there!


smwalker wrote:
Yes it will matter to a degree. We got aluminum heads so overtorque can lead to damage. Do the easily accessible ones first with a torque wrench to get the feel for the correct setting. Then just try to get close on the harder ones.


15 lbs is for a new head. All subsequent installations get 11 lbs. You can easily get a torque wrench on all of the plugs. For future reference:
http://www.ls1howto.com/index.php?category=1


Top
 Profile  
 
PostPosted: Thu Oct 26, 2017 3:12 am 
Offline

Joined: Sun Sep 10, 2017 3:10 pm
Posts: 20
Thanks Steve, you're always a great help.


Top
 Profile  
 
PostPosted: Thu Oct 26, 2017 1:42 pm 
Offline

Joined: Sat Feb 07, 2015 8:31 pm
Posts: 1600
Location: Pearland, Texas
Since you have differing metals working together there, I find using anti-seize is more important than using a torque wrench. It helps prevent galled threads and stuck plugs.

_________________
Gene Beaird,
Pearland, Texas
2012 Caprice 9C1
1992 B4C 1LE Camaro
2010 Tahoe PPV (her car)
1995 DGGM Impala SS
1996 BBB Impala SS (11-second DD)
1985 Firebird - 310 LS1 C Prepared autocross car.
And some others
Do YOU have my SPID?


Top
 Profile  
 
PostPosted: Thu Oct 26, 2017 6:39 pm 
Offline

Joined: Mon Jul 29, 2013 6:44 am
Posts: 1311
Location: Azusa,CA
kevink wrote:

15 lbs is for a new head. All subsequent installations get 11 lbs. You can easily get a torque wrench on all of the plugs. For future reference:
http://www.ls1howto.com/index.php?category=1


I read that but it did not jive with the service manual. They talk about a lower torque for reinstalling the same plugs.

Image


Why would it be lower for send set of plugs? Threads get weaker?

_________________
Steve Walker
Azusa, CA
'11 PPV 9C3 Huron White


Top
 Profile  
 
PostPosted: Thu Oct 26, 2017 6:43 pm 
Offline

Joined: Mon Jul 29, 2013 6:44 am
Posts: 1311
Location: Azusa,CA
CrashTestDummy wrote:
Since you have differing metals working together there, I find using anti-seize is more important than using a torque wrench. It helps prevent galled threads and stuck plugs.


Make sure and use it sparingly though. Little goes a long way and keep in mind it does effect the torque specs. No factory service manual recommends the use of it. But it does seem to help at time of removal. Make sure and get the correct kind if you are going to use a little bit of it on the threads only.

_________________
Steve Walker
Azusa, CA
'11 PPV 9C3 Huron White


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 15 posts ]  Go to page 1, 2  Next

All times are UTC [ DST ]


Who is online

Users browsing this forum: No registered users and 7 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Group