using a freeze off for spark plugs

[stone7]

hello,

Has anyone ever used one of the freeze off penetrants for removing a spark plug?

I've got one that isn't coming out right and I stopped and don't want to force it.

I discovered this stuff recently and it seemed to help with a stuck screw pretty nicely.
I don't see why it would hurt anything to try it?​

I'm working on an old JD 445

[DRobinson]

hello,

Has anyone ever used one of the freeze off penetrants for removing a spark plug?

I've got one that isn't coming out right and I stopped and don't want to force it.

I discovered this stuff recently and it seemed to help with a stuck screw pretty nicely.
I don't see why it would hurt anything to try it?​

I'm working on an old JD 445

I've got one in my 445 that is stuck also. I've put all the torque on it that I dare. I'll be watching your thread to see what comes out.

[dieselshadow]

Moved thread for more views and responses.

[Jeff B]

Afraid I've never tried it on a spark plug. I have used freeze sprays to facilitate bushing installations and such.
My best guess is that you could have experienced a chemical reaction between an aluminum head and a steel plug shell. Or also some designs result in a thread or two at the end of the plug that is exposed to the combustion chamber and deposits will have to be dragged back through the ID threads.

The product I used was only intended to lower the temperature of the material in the spray stream. I have not heard of combining a penetrant with the freeze spray. Sounds pretty genius, I hope it helps you out.

[56FordGuy]

I haven’t used Freeze Off, but did a similar thing.

Removing broken Spark Plugs


https://youtu.be/JijVI3RTkMY

[Herminator]

I haven’t used Freeze Off, but did a similar thing.

Removing broken Spark Plugs


https://youtu.be/JijVI3RTkMY

Very good video

[H-D dealer dude]

hello,

Has anyone ever used one of the freeze off penetrants for removing a spark plug?

I've got one that isn't coming out right and I stopped and don't want to force it.

I discovered this stuff recently and it seemed to help with a stuck screw pretty nicely.
I don't see why it would hurt anything to try it?​

I'm working on an old JD 445

Don't think it would hurt to try the stuff.

It was definitely a good idea to stop before you broke the plug off. Like 56FG says. Spray and walk away.
Hopefully the plug is only held in by corrosion. If the last guy stripped the threads running the plug in. You will probably need to remove the head. To install a thread repair insert.

This is exactly why I put anti seize on all my plugs before installing them.

[firemachine69]

Just so OP can confirm, you've tried giving the plug a bit of a snug before trying to remove it?


Buy some penetrating spray, apply at the base, leave over night, repeat for at least three more days - WITHOUT starting the engine. You really need that penetrating spray to get deep in there. As someone who sheared off a couple plug in the head of the engine (and subsequently had to remove the head off outside in -20 weather), you do NOT want to go there!

[PJR832]

I haven’t used Freeze Off, but did a similar thing.

Removing broken Spark Plugs


https://youtu.be/JijVI3RTkMY

Great video Blake

[H-D dealer dude]

You could also try a 3/8" impact driver. As long as you have access to the plug. Seeing once you put a deep socket on the end of the driver it will be almost 10" long. Make sure that the tool is set to counter clockwise before you hit it.
When you smack the end of the tool with a hammer. The tool converts the down energy into a twisting motion.

I learned of the tool back in my dirt bike days. Trying to remove philips head bolt you use to check the transmission oil level.
A regular screwdriver ain't going to do it. I still have the same tool from the 80's. Also picked up the one pictured below.

Just don't get nuts hitting it.