Need extension / swivel / square drive adapter / for 96 4.0 spark plug replacement?

[swshawaii]

Thanks toypaseo! Going to be a while before it's needed for the ST, but have many
lawn tools that seem to burn through spark plugs. Did you get those plugs changed yet?

 

[mikepier]

I don't know what the OHV is like, but for my SOHC, I did all my work through the wheel wells, and did not need any special swivel or flex ratchets, just standard ratchets with extensions. Was a lot easier than trying to get to the plugs from the top.

 

[toypaseo]

Did you get those plugs changed yet?

Nope. Someday, I will be unlazy, and attempt it...

 

[toypaseo]

14+ months later... finally done

I think it took over three hours for the plugs, and new wires. Passenger plugs were and the driver plug wires were

The key tools in my job were the Gearwrench swivel spark plug socket, and an 18"(?) long socket extension. If/when I change the plugs again, I plan to try my locking extensions, since the swivel spark plug socket always stuck on the plug when trying to pull it off with a regular extension.

 

[acrx7]

Hmm , I used one ratchet and maybe 2 extensions with a swivel and I don't gap , I have heard when the plugs come with the paper covering the electrode that gapping was not necessary , its that true ? I have never had problems with plugs

 

[toypaseo]

I have heard when the plugs come with the paper covering the electrode that gapping was not necessary , its that true ? I have never had problems with plugs

I always double check gaps on new plugs. I have noticed slight differences throughout the years, but almost all were pretty close. I can remember a few being way off, but it was visually easy to notice.

 

[swshawaii]

^ https://www.ngksparkplugs.com/about...et-the-gap-when-installing-a-new-set-of-plugs

https://www.ngk.com/learning-center/article/190/should-i-gap-my-plugs

Even if the preset Gap matches that required by your engine, it is always good practice to physically check the Gap as it may have shifted during transportation.