So I have a 95 ford ranger with a 3.0 motor and I found these heads at a junk yard looks like they were recently remaned well come to find out the one of the spark plug holes was drilled out and I guess there used to be a insert in there and I didn't notice it came out with the old plug I took out now I need to find a new insert. I'm using the autolite 104 spark plugs. Any idea where I can get a big enough insert to make this work.

This is the plug that us the right size

Oversized hole drilled out. Does anyone know a part number for a insert?

 

Most popular brands for spark plug thread repair are Helicoil and Time-sert

3.0l Vulcan engine should use 14mm x 1.25(pitch) spark plug thread

 

So the plug insert need to be 16mm to 14mm

 

The 16mm would be unknown to anyone here, but yes the spark plug used in the 3.0l Vulcan engines is 14mm

 

I just wish they had a 16mm spark that worked in a 3.0 motor

 

Wouldn't matter, you would still have to rethread the hole to match 16mm spark plug, and then down the road buy 5 14mm and 1`16mm spark plug which to me seems more of a pain than just using 6 of the same spark plugs

 

Can anyone find me a insert that will work because I'm having hell trying to find this insert.

 

Google: Ford 3.0l Vulcan spark plug thread repair

 

Only thing I have found all day long was for the ford triton v8 or v10 motor I haven't been able to find anything at all saying it will work on ranger 3.0 motor at all. Also I have found just a little sleeve for the spark but someone has reemed the plug hole out and had a insert in it but I have never had ran into this problem ever so I didn't even think of looking at the plug for the insert. Has anyone on this site ever had to Reem a plug hole and put a big insert into it?

 

Spark plug inserts use a Tap to re-thread the spark plug hole to a larger size, you then screw in the insert
Then you have a new spark plug hole with correct threads

Google: Helicoil 5334-14

 

Thanks for that I found them close by I'm going to pick them up today thanks

 

I wanted to thank everyone who replied to this I got it fixed and started for the first time. But I forgot my oil pressure sensor and covered my newly painted rebuild motor in oil. But thanks yall

 

Good work

I did similar years ago, forgot oil filter after oil change...............................what a mess, lol