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1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks Discuss the Early Eighties Bullnose Ford Truck

Stripped spark plug thread. Help

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Old Sep 13, 2019 | 07:43 PM
  #1  
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Stripped spark plug thread. Help

If you’ve been following my low idle stalling issue... I changed the plugs today and they were absolutely trashed. Might have been my issue I don’t know bc now I have one thread for a plug stripped. It’s the one second closest to the firewall on drivers side. I tried and tried but no dice.

I need some guidance.
 
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Old Sep 13, 2019 | 08:48 PM
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They make kits to repair the threads. Here's one.

https://www.autozone.com/test-scan-a...tem/141511_0_0

Lots of hits with a google search.
 
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Old Sep 13, 2019 | 08:55 PM
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Originally Posted by Franklin2
They make kits to repair the threads. Here's one.

https://www.autozone.com/test-scan-a...tem/141511_0_0

Lots of hits with a google search.
I spoke too soon. I got one of the old plugs in so I guess I just messed up the top thread or 2 on my new plug. Sorry for the thread
 
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Old Sep 13, 2019 | 10:17 PM
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Old Sep 14, 2019 | 02:46 PM
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Originally Posted by matthewq4b
Consider one these to fix up the threads.

https://www.amazon.com/Powerbuilt-64.../dp/B0014FGVVW

I'm very partial to this back-tap thread repair tap. The tap collapses just enough to fit inside the hole. Then you expand it and the tool engages the undamaged threads, so that everything lines up perfectly as you back it out. This style also pushes any chips out. If using a regular solid tap, it's possible to still cross-thread the hole, plus this pushes the chips into the cylinder. Smear the tap with grease to catch any chips. Here's a good video explaining the process:




Here's my favorite tool for starting spark plugs in awkward spots:

https://www.steelmantools.com/12-inc...g-starter.html
 
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Old Sep 14, 2019 | 03:59 PM
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Originally Posted by kr98664
I'm very partial to this back-tap thread repair tap. The tap collapses just enough to fit inside the hole. Then you expand it and the tool engages the undamaged threads, so that everything lines up perfectly as you back it out. This style also pushes any chips out. If using a regular solid tap, it's possible to still cross-thread the hole, plus this pushes the chips into the cylinder. Smear the tap with grease to catch any chips. Here's a good video explaining the process:

https://www.youtube.com/watch?v=3UK8kEAnHVk



Here's my favorite tool for starting spark plugs in awkward spots:

https://www.steelmantools.com/12-inc...g-starter.html

Nice tool but overthinking it I feel. My fav is just chunk of below.


 
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Old Sep 14, 2019 | 04:17 PM
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Originally Posted by matthewq4b
Nice tool but overthinking it I feel. My fav is just chunk of below.

Spend the $12! You’ll never go back. The product description could be better. You can bend the doohickey to any shape and it stays. Turn the **** at one end and it spins the spark plug. Slicker than snot. Access on my pickup is okay so it’s not really needed, but that tool is a lifesaver on other vehicles.
 
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