Chevrolet Cruze Forums banner
1 - 4 of 4 Posts

·
Registered
Joined
·
589 Posts
Discussion Starter · #1 ·
I know this has been mentioned before but it's worth saying again, if you haven't checked your spark plugs for a while I recommend you go do it now! I just checked mine because I realized I had set them wrong the last time. It's been about 30K and all four of them were loose as could be! I mean finger loose! When I changed them before I torqued all four to 20flb. I think GM should put this in the manual as a routine maintenance item......
 

·
Administrator, Resident Tater Salad
Joined
·
17,346 Posts
Never had mine come loose, but then I never used a torque wrench either. Hand tight + a little bit more by a wrench (nowhere near enough to strip) has always worked for me.

Keep in mind that the crush washer on plugs crushes - once - to seal. After that, you'll probably need a bit more torque to keep them snug in the head.
 

·
Administrator
Joined
·
25,596 Posts
Once you pull them out and then put them back in they're more likely to come loose. The crush washer is what keeps them snug on the first installation.
 

·
Registered
Joined
·
589 Posts
Discussion Starter · #4 ·
Never had mine come loose, but then I never used a torque wrench either. Hand tight + a little bit more by a wrench (nowhere near enough to strip) has always worked for me.

Keep in mind that the crush washer on plugs crushes - once - to seal. After that, you'll probably need a bit more torque to keep them snug in the head.
This set was new when I put them in 30k ago, the originals were loose when I went to take them out. I did give a little extra this time, 20 on the torque wrench and an extra push!
 
1 - 4 of 4 Posts
Top