Haven't seen one of those for a long time John! Those are "Anti-Foulers" or "Non-Foulers". The idea was if the motor was burning so much oil that it rapidly fouled the plugs, this device would help keep the oil out of the electrode. I don't really think they worked but, they sold them and still do. The device pulls the electrode out of the combustion chamber, not a good thing. It also adds several cc's to the combustion chamber volume reducing compression. One of those snake oil things.
Originally Posted by bmorgil
VERY INTERESTING!!!.
You really impress me with your wealth of knowledge, LOL. Do I dare ask how long you have been into jeeps and just how many you have worked on?
So, I am after this head as I have a broken bolt in 48 on the water pump housing. Should not be to critical, but I am struggling to get it out. I have drilled and used an extractor, and broke the chuck of the extractor twisting on it (cheap one) I then put a wrench on the extractor bit itself, and am worried about breaking it off. Been trying to do this while on the jeep as everything runs nicely. So, I thought I would just pull the head off my spare engine and make a quick swap and deal with it off the engine or maybe even take it to a machinist. At this point, I am thinking it just needs to be drilled out, and if the bolt threads get damaged, use a helecoil type thread repair.
In any event, I am assuming these Non-Fouler devices can just be screwed out and I should be able to clean up the head and put it on my 48.
I was worried that these were somehow locked in place or that the spark plug hoes were drilled and tapped, but that sounds unlikely. From what you say, these were probably just screwed in. I will give a go to try to wrench these out after I get some penetrating oil on them. Hopefully they pop right out. This was really the only odd thing I found with this spare head.
Thank you so much for your sharing your wealth of knowledge.
John
Last edited by jeep_n_john; 10-29-2022 at 11:09 AM.
Growing up a mechanic and spending a good deal of time around Toledo, keeps you very close to Jeeps!They have always been everywhere around here. I have worked on and been around and helped compete many, from coast to coast. I am an old dog! Surprisingly, my 50' is the first Jeep that I have owned.
TJ's tip on broken bolt extraction is by far my favorite. If you can get a nut over the top and get a good hot weld on it, then cool it with wax or oil, that's as good as it gets. If it is broken off under flush there is a way to drill it out and not cause too much trouble. Let us know how its going. If you are rebuilding the motor, the head needs to go to machine shop anyway to be sure it is flat. They pluck/drill/machine those broken bolts out like there's nothing to it.
The non-foulers should come right out. I am sure they are tight. If the threads are exposed on the combustion chamber side, clean them up first. If they are messed up it will ruin the threads in the head on on the way out.
You are welcome John, this forum and its members provide a wealth of knowledge! The more we all hammer this stuff out the wealthier we get!
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