Spark Plug for a Stihl 441C

[EAK044]

I have a 441 that has been kind of a basket case. When I bought it, it had a couple pieces missing including the spark plug. Fast forward to now and I have it rebuilt. I was going to put a spark plug in and found out the socket for the plug is bigger than a BPMR7A. Anyone know if this is typical and what spark plug fits?

 

[Stump Shot]

@redline4 knows all about these critters...
I'm going to guess the threads are torn out, if so I can repair it 4 U.

 

[redline4]

BPMR7A...
Soooo, looks like you'll be needing to get that thing to Steve and get that repaired.

 

[backhoelover]

I have the time sert kit for repair those jugs

 

[backhoelover]

Repairing

 

[EAK044]

@redline4 knows all about these critters...
I'm going to guess the threads are torn out, if so I can repair it 4 U.

I thought that was the case and maybe at one time it was but the threads seem to be in great shape.
Kind of hard to tell in the pictures but the threads are in great shape

 

[backhoelover]

Kit to fix the threads

 

[Stump Shot]

The insert came off with the plug, it's already been repaired before, just not good enough to stay put. Look on the old plug if you still have it.

 

[Stump Shot]

I thought that was the case and maybe at one time it was but the threads seem to be in great shape. View attachment 371448View attachment 371449
Kind of hard to tell in the pictures but the threads are in great shape

If it's been helicoiled before I can install a new one and re set it without taking the cylinder off.