Spark plugs and anti seize?

[acolic]

Hi

When changing the spark plugs on a 5.7 hemi do we use anti seize or not

Thanks

Alex


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[Fast69Mopar]

I personally have never used anti-seize on any 5.7 or 6.1 HEMI I have put plugs in. I started putting plugs in 5.7 trucks in early 2003 and to date I have never had any issues getting one out of a cylinder head.

 

[HemiLonestar]

A small (and I mean SMALL) dab on the threads definitely doesn't hurt. While Fast has been lucky, many others have not.

 

[Karlsweg]

Yes

 

[Stefan N]

I have never used it

 

[Brando_SLT]

Yes, a tiny amount. Don't over torque them either.

 

[Redtruck-VA]

I use a small dab on install.

 

[turkeybird56]

Don't know on Hemi,, BUT DEFINITELY on my 2006 Honda GL 1800 wing

 

[buddy guy]

Yes, a tiny amount. Don't over torque them either.

Good point. When using anti seize there is a tendency for people to overtorque bolts and snap them of if not using a torque wrench. happens with people replacing manifold bolts all the time. Slightly off topic but, for anyone wondering what's the danger of overtorquing with anti seize. Snap!

 

[turkeybird56]

Good point. When using anti seize there is a tendency for people to overtorque bolts and snap them of if not using a torque wrench. happens with people replacing manifold bolts all the time. Slightly off topic but, for anyone wondering what's the danger of overtorquing with anti seize. Snap!

Hmmmmmmm, thought that was what a Torque wrench was. Maybe some folks need to understand how one works and follow directions, ROFLMAO. FWIW: I have seen people set a wrench say on 85 lbs, put on a bolt and tighten till it clicks. Then they tighten and click and etc etc, and sometimes change it to a higher number because THEY have no clue on a TW, sometimes almost funny, LOL

Why when I travel I carry a TW in case had to say change a tire,., so all good, maybe just me, as I's just a Boird.....


And I usually use lock tight on regular nuts and anti-seize on certain applications. BUT I am not gonna do the plugs on my Hemi, I will have Dealership do or a mechanic I trust,., getting too old to try to crawl halfway into engine bay to reach back set of plugs, Just saying, LOL

 

[HemiLonestar]

Recently talked to a guy who couldn't figure out why he kept breaking intake manifold bolts...hemi intake bolt spec is 105in/lbs....wanna take a guess what he was doing....?

 

[buddy guy]

Hmmmmmmm, thought that was what a Torque wrench was. Maybe some folks need to understand how one works and follow directions, ROFLMAO. FWIW: I have seen people set a wrench say on 85 lbs, put on a bolt and tighten till it clicks. Then they tighten and click and etc etc, and sometimes change it to a higher number because THEY have no clue on a TW, sometimes almost funny, LOL

Why when I travel I carry a TW in case had to say change a tire,., so all good, maybe just me, as I's just a Boird.....


And I usually use lock tight on regular nuts and anti-seize on certain applications. BUT I am not gonna do the plugs on my Hemi, I will have Dealership do or a mechanic I trust,., getting too old to try to crawl halfway into engine bay to reach back set of plugs, Just saying, LOL

i carry a torque wrench under my back seat as well. And I too have seen pple click and click and click. Thinking it's going to click until it's right and then it won't? lol

 

[Stefan N]

Recently talked to a guy who couldn't figure out why he kept breaking intake manifold bolts...hemi intake bolt spec is 105in/lbs....wanna take a guess what he was doing....?

He set the torque wrench to 105 Newton Meters!!? (almost 10 times too much...)

 

[turkeybird56]

Recently talked to a guy who couldn't figure out why he kept breaking intake manifold bolts...hemi intake bolt spec is 105in/lbs....wanna take a guess what he was doing....?

Bet he was thinking Foot Lbs instead of converting, lmao

105 Inch-Pound (in∙lb)

=

8.75 Foot-Pound (ft∙lb)


BUT: 8.75 FT LBS ON A manifold bolt seems kinda low, just saying.....But a lil research shows the number 8.75 ft lbs is correct..... Wow

 

[HemiLonestar]

He set the torque wrench to 105 Newton Meters!!? (almost 10 times too much...)

No lol

Bet he was thinking Foot Lbs instead of converting, lmao

105 Inch-Pound (in∙lb)

=

8.75 Foot-Pound (ft∙lb)


BUT: 8.75 FT LBS ON A manifold bolt seems kinda low, just saying.....But a lil research shows the number 8.75 ft lbs is correct..... Wow

Yep....remember, these intake manifolds are plastic, not metal. Not gonna have a huge torque spec in order to seal properly.

 

[turkeybird56]

OH, OK, well my bad, guess was thinking 67 Chevy cast, LMAO, did not know they were friggin Plastic, ROFLMAO

 

[buddy guy]

plastic...not even aluminum. wow

 

[Marley]

Yeah but high temp plastic.

 

[HemiLonestar]

OH, OK, well my bad, guess was thinking 67 Chevy cast, LMAO, did not know they were friggin Plastic, ROFLMAO

plastic...not even aluminum. wow

Seriously...? You guys didn't know this? You both have engines with plastic manifolds and didn't know this? Bwahahahahahaha!!!! Ok, ok....most (not all) engines since about 99-00 use plastic intakes. The last Mopar engines (not including the beastly 6.2 or Cummins, since that's technically not a Mopar per se) with metal intake manifolds were the 4th gen Viper engine and 6.1 hemi. This is the intake manifold (the one on the bottom) residing in both your trucks:



The 4.7 has been plastic since it was created in 99, as was the 5.7 (both versions):

All pretty much look like this underneath:



Excellent for thermal isolation, the plastic doesn't transmit nearly the amount of heat (especially with the insulation pad that sits in the valley underneath) a comparable iron or aluminum one does. Also allows for easier use of active runners (like the 5.7 eagle and 6.4/392 apache & truck versions) intakes.

 

[Nick@GotExhaust]

I always used a very small dab of anti-sieze and ALWAYS use a torque wrench and tq them to spec. Dont forget to check/set gap too!