OK here we go again
Seasoned HDF Member
Joined: Oct 2013
Posts: 9,238
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From: On the Big Blue marble
Finger tight then quarter turn is the general standard because most people dont have a torque wrench and will just ham hand it. Hand tight is a good rule of thumb but I follow the MFG service manual.
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Road Warrior
Joined: Nov 2015
Posts: 1,279
Likes: 467
From: anywhere
Ok so 1/4 turn for new plugs, but how much for already crushed washers,1/8 of a turn?
Thanks so much for these answers. I have already stripped a plug out and now that its fixed I dont want to do it again.
Gerald Martin
Thanks so much for these answers. I have already stripped a plug out and now that its fixed I dont want to do it again.
Gerald Martin
Seasoned HDF Member
Joined: Mar 2010
Posts: 38,543
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From: Honah Lee
As cheap as plugs are, why would you ever reuse a plug?
But if you must, a 1/4 turn leaves another 1/4 turn. And NAPA use to have them for about $3 for 10 on that row of oddball stuff on popular cars.
But if you must, a 1/4 turn leaves another 1/4 turn. And NAPA use to have them for about $3 for 10 on that row of oddball stuff on popular cars.
Last edited by Jackie Paper; Mar 1, 2024 at 05:26 PM.
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Road Warrior
Joined: Nov 2015
Posts: 1,279
Likes: 467
From: anywhere
because I want to check them to see if I have the idle mixture screw (the one you have to remove the plug to get to) right. So please tell me how to put the used ones back in. Is it 1/4 turn for used plugs or is it 1/8 turn. I already know its a 1/4 turn for new plugs. I just need a simple answer.
Last edited by gerald martin; Mar 1, 2024 at 07:41 PM.
Road Master
Joined: Aug 2017
Posts: 1,203
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From: TX
because I want to check them to see if I have the idle mixture screw (the one you have to remove the plug to get to) right. So please tell me how to put the used ones back in. Is it 1/4 turn for used plugs or is it 1/8 turn. I already know its a 1/4 turn for new plugs. I just need a simple answer.
Seasoned HDF Member
Joined: Dec 2009
Posts: 9,163
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From: Doghouse... mostly
How old are you? Have you ever in your whole life ever changed out a sparkplug either in a car, truck, snowmobile, boat, lawnmower, or garden tiller? It ain't Rocket Surgery!
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Seasoned HDF Member
Joined: Mar 2010
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From: Honah Lee
because I want to check them to see if I have the idle mixture screw (the one you have to remove the plug to get to) right. So please tell me how to put the used ones back in. Is it 1/4 turn for used plugs or is it 1/8 turn. I already know its a 1/4 turn for new plugs. I just need a simple answer.
HDF Community Team
Joined: Nov 2012
Posts: 6,189
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From: USA
You've been given the answer multiple times, and guided to sparkplug manufacturers who give specific answers to your question.
The spark plug has to be tight enough to seal, but needs nothing more.
It's an aluminum head, don't over torque it. Tearing out the threads will make you cry, so don't do it.
The spark plug has to be tight enough to seal, but needs nothing more.
It's an aluminum head, don't over torque it. Tearing out the threads will make you cry, so don't do it.