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Username Post: Spark plug torque        (Topic#354838)
YOUNG57 
Frequent Contributor
Posts: 1141

Loc: Tennessee
Reg: 12-06-10
01-14-19 09:42 AM - Post#2757327    

What is the tightening torque on LS 5.3 spark plugs?



 
Lead sled 
Frequent Contributor
Posts: 1948
Lead sled
Age: 59
Loc: Walton,NY.
Reg: 11-04-09
01-16-19 09:20 AM - Post#2757534    
    In response to YOUNG57

The GM service manual calls for 11-13 ft lbs. I JUST GOOGLED IT

Late yr model (Dec. 51 BelAir/ 52 trim), with a basically stock 67 Camaro SS350/295hp Turbo Fire Edelbrock 1405, Saginaw 4spd/355 geared 55/6 Chevy rear.2,1st place,and 1 top five award trophies so far
http://www.picturetrail.com/bris51deluxe


 
YOUNG57 
Frequent Contributor
Posts: 1141

Loc: Tennessee
Reg: 12-06-10
01-18-19 02:47 PM - Post#2757680    
    In response to Lead sled

OK, thanks



 
65_Impala 
Very Senior Member
Posts: 4306

Reg: 12-29-02
02-20-19 11:03 AM - Post#2760359    
    In response to YOUNG57

For tapered seat plugs, the typical recommendation is to tighten them finger tight and then go about 1/16 turn or 22.5* turn further with the wrench.



 
YOUNG57 
Frequent Contributor
Posts: 1141

Loc: Tennessee
Reg: 12-06-10
04-05-19 09:12 PM - Post#2763714    
    In response to 65_Impala

I just figured out a trick to pull off the spark plug boots on my 2014 Yukon LS 5.3.

The left bank plugs weren’t too difficult as they are angled forward. After twisting the boots in both directions to break loose (unstick) the rubber from the porcelain they came off without too much difficulty as I was able to get spark plug boot puller pliers on them and pull forward.

But the right bank plugs are angled rearward away from the direction of pull and the #8 is hard to reach and in a confined space next to the firewall. After much hard pushing and pulling I was unable to pull the boot off #8.

I took a ¾” dowel rod about 3 feet long and drilled a 3/16” hole about 2” from one end. Tied a loop knot in one end of an 1/8” nylon cord, wrapped the cord around the boot heat shield twice and ran the end through the looped end and choked the coils down on the heat shield. The heat shield has a groove near the outer end the cord laid in.

Then ran the end of the cord through the hole in the dowel rod and held it near the other end. Started twisting the rod and let the cord wrap around it until the rod pulled up against the exhaust manifold. With very little effort I continued to twist the rod and the cord pulled the boot right off #8.

Pulling the boots by the top end of the boot stretches and shrinks the boot tightening it. Pulling on the heat shield pulls the boot from the bottom end expands and loosens the boot.




Edited by YOUNG57 on 04-05-19 09:17 PM. Reason for edit: No reason given.

 
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