Spark Plugs

[Armada]

What size socket is needed to remove the Tornado spark plugs (type used with the sealed wires), and will a standard deep well socket work, or do I need something custom? Haven't tried to remove them yet but thought I'd ask while I'm logged in here. Thanks

[brute4c]

13/16ths spark plug socket works just fine...standard size...the larger one of the 2 standard sizes.

[maddawg308]

Make sure it's a 13/16 deep socket, the standard size just isn't deep enough.

[Barrman]

Paul, the problem is going to be getting the socket on the first of the companion spark plugs that point toward each other. So, 3 easy ones after you do the 3 hard ones.

One of the manuals has a list of M715 specific tools at the begining of it. They show a spark plug wrench. It looks like somebody cut one up the same way current O2 sensor sockets look and added a handle.

[Armada]

Thanks for the info. I guess if it was easy, everyone would be changing them.... I figured the 13/16 socket would work, but my spark plug socket isn't deep enough to fit all the way down the plug, so I wanted to be sure before I bought an extra deep socket. Thanks again.

[brute4c]

I remember using a standard 13/16ths to pull the plugs. It is a little cramped due to the plugs facing each other but it does work without a real problem...just makes it slightly slower.

[k8icu]

Doesn't Crasftman or snap on make a bent box wrench that would work? You know it's shapped in an L with the box end on the foot of the L. I would think that would make the problem of cramptness a little easier.

[kwai]

The plug wrench that Barrman mentioned is actually used to remove the spark plug wires. They are close enough together that they make getting a regular wrench on them near impossible. However, I found that the standard wrench that you can get off ebay doesn't have enought clearance (to thick) for the M715. Works fine on other MV's. A grinder will fix the clearance problem.

My first plug wrench I made from a standard open-end wrench and bent the handle and ground the open-end down to make it thin enough to easily fit between the spark plug wire nuts.

Once you get the spark plug wires off, a deep spark plug socket (you might need to remove the inner rubber thingy) will work to remove the spark plugs.

[brute4c]

Yep, exactly. The wires are the real pain...plugs are a bit inconvenient but do-able.

[Barrman]

Sorry for the confusion. I knew I should have walked over and looked at one before I posted. I messed with my Gasser OA331 plugs last and had that on my mind when I wrote the above.