SuzukiSavage.com - Spark plug torque

Redryder652 Full Member Offline SuzukiSavage.com Rocks! Posts: 179 Bergen County, New jersey Gender:	Spark plug torque 03/11/16 at 21:29:31 I recently rejetted and wanted to make sure I was running a good mixture, so I pulled the plug. But I wanted to know if anyone on here has stripped a spark plug thread, how much does it take? I am going wrist tight off of a 3/8 ratchet with the engine cold, and I'm just a little paranoid of stripping something.
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Kris01 Serious Thumper Offline Eat, sleep, RIDE! Posts: 3767 Tennessee Gender:	Re: Spark plug torque Reply #1 - 03/11/16 at 21:44:51 You don't need to crank it down to 100 ft/lbs. You're doing it right. The manual states to turn it 1/2 turn passed finger tight if using a new plug. 1/8 turn if reusing the old one.
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Redryder652 Full Member Offline SuzukiSavage.com Rocks! Posts: 179 Bergen County, New jersey Gender:	Re: Spark plug torque Reply #2 - 03/11/16 at 22:32:05 Alright, good. Cause I must have taken it out and put it back in about 15 times to make shure I get it right.
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Serowbot YaBB Moderator ModSquad Offline OK.... so what's the speed of dark? Posts: 29287 Tucson Az Gender:	Re: Spark plug torque Reply #3 - 03/12/16 at 06:01:59 Redryder652 wrote on 03/11/16 at 22:32:05: Alright, good. Cause I must have taken it out and put it back in about 15 times to make shure I get it right. Don't do that..
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Redryder652 Full Member Offline SuzukiSavage.com Rocks! Posts: 179 Bergen County, New jersey Gender:	Re: Spark plug torque Reply #4 - 03/12/16 at 06:13:32 Why? What can happen?
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Serowbot YaBB Moderator ModSquad Offline OK.... so what's the speed of dark? Posts: 29287 Tucson Az Gender:	Re: Spark plug torque Reply #5 - 03/12/16 at 06:25:57 You may go insane.
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Redryder652 Full Member Offline SuzukiSavage.com Rocks! Posts: 179 Bergen County, New jersey Gender:	Re: Spark plug torque Reply #6 - 03/12/16 at 06:28:37 That's all? No thread damage, or anything of that sort? Just insanity? Well, yeah I guess insanity is pretty bad.
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Serowbot

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OK.... so what's the
speed of dark?

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Re: Spark plug torque
Reply #7 - 03/12/16 at 06:38:45

Seriously,.. if you are backing it back out, because you think you may have over-tightened then repeating it, over and over...
You may cause damage... (if over-tightening is bad, doing it 15 times don't make it better).
15 times?... you may be over thinking this... Grin

I thread it 'till it seats, then give 2 finger and a thumb snuggy...

The danger of too loose, is it will come loose... easy fix.
The danger of too tight... not easy...

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Redryder652 Full Member Offline SuzukiSavage.com Rocks! Posts: 179 Bergen County, New jersey Gender:	Re: Spark plug torque Reply #8 - 03/12/16 at 06:47:25 Wise words. I know I wasn't over tightening because every time I unt hreaded it came out with very little force and the whole thing came out with no problem. So I'm gonna assume I'm good. I even took a look with my cheapo harbor freight inspection camera to take a look and everything looked fine. I just wanted to be sure.
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Art Webb Serious Thumper Offline SuzukiSavage.com Rocks! Posts: 3007 columbus, Texas Gender:	Re: Spark plug torque Reply #9 - 03/12/16 at 08:17:57 till it seats. then 1/8 to 1/2 turn, like the previous poster said if you overtighten it, you'll know right away did you use anti seize?
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Redryder652 Full Member Offline SuzukiSavage.com Rocks! Posts: 179 Bergen County, New jersey Gender:	Re: Spark plug torque Reply #10 - 03/12/16 at 08:32:46 I didn't use anti seize. I have silver never seize. Should I pop it, and apply?
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Kris01

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Re: Spark plug torque
Reply #11 - 03/12/16 at 10:15:17

You're using a steel plug on an aluminum head. Two dissimilar metals will cause electrolysis and corrode the point where they meet. Anti-seize, Never-seize, whatever you wanna call it is your best friend. I love the stuff! It makes things go together (and come apart!) so much easier! If you ever have a stuck bolt in a soft metal, you'll kick yourself for not using anti-seize! Wink

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2008 S40, Rotella T 15W-40 w/ZDDP added, Dyna, 140/90-15, Battery Tender Jr., Seat lift, #52.5/150/3 washers, Raptor

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Re: Spark plug torque
Reply #12 - 03/13/16 at 10:03:42

And the new plug requires more of a turn once it is finger tight...because the new washer will crush as you install it - the next 14 times it does not need to be turned as far as the washer will not compress as far.

And anti-seize is a good idea for a plug in any head....regardless if it is aluminum or cast iron. Sometimes they are in there for many, many years and can become very hard to remove if you don't use the never seize.....in an aluminum head the threads are easier to damage than in a cast iron head.

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Art Webb Serious Thumper Offline SuzukiSavage.com Rocks! Posts: 3007 columbus, Texas Gender:	Re: Spark plug torque Reply #13 - 03/14/16 at 08:29:41 I've never seen this in iron head engines, but in aluminum head engines I've pulled a plug and had the threads come out with it, requiring the use of a thread repair On iron headed engines they rust in place and are hard to remove, but I've never seen the threads come out with the plug
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Kris01 Serious Thumper Offline Eat, sleep, RIDE! Posts: 3767 Tennessee Gender:	Re: Spark plug torque Reply #14 - 03/14/16 at 19:15:10 But even with an iron head you can damage the threads without completely removing them. The anti-seize lubes the plug so it comes out gently. I broke the ceramic off a plug once and panicked! Then I realized the "nut" was still there and the ceramic didn't really matter. It was going in the garbage anyway.
Back to top	There's no problem that a full tank of gas and a sunny day can't fix! 2008 S40, Rotella T 15W-40 w/ZDDP added, Dyna, 140/90-15, Battery Tender Jr., Seat lift, #52.5/150/3 washers, Raptor IP Logged