What is this wire behind freeze plug!

[insaneradio]

Afternoon Gentlemen,

I am changing the freeze plugs on my P-15. When I pulled the plug that is behind the flywheel I found a wire inside!!!! Keep in mind this motor runs perfect. It has for 20 years. I had a freeze plug leak on me so I opted to replace them all.

Here is a pic! Any ideas???:confused:

Thanks,

Dave

Edited May 15, 2010 by insaneradio
spelling correction

[BeBop138]

I think they are just casting chunks---I had one inside my cylinder head---I just broke it off........Lee

[insaneradio]

I think they are just casting chunks---I had one inside my cylinder head---I just broke it off........Lee

I pulled on it with pliers and it is stuck very well. I figure it has been there all these years it will remain. Thanks for easing my worry.

Dave

[Tim Keith]

Yes. Wires are used to keep the sand cores from floating when iron is poured.

This is also why there is core shift. Foundry workers attempt to remove the

sand and wire though the core plugs.

[JBNeal]

Yep, I had one of those in the head of the '48...pulled it out, it was purt'near the length of the head. I never could figger out why it was up in there, so I guessed it had something to do with the casting.

[insaneradio]

Very good information guys!! Thanks so much! I can rest easy tonight. I installed the casting plug, flywheel and bell housing this afternoon.

Dave