Crank pulley nut and spark plugs

[Doug&Deb]

Here’s a twofer question. First the plugs. I was asked about them in my thread about timing. I’m running Autolite 295’s and they look normal to me with a tan color and no oil. Second is the crank nut. I’m tearing down my spare engine and I can’t break the nut loose. Dumb question but is it left hand thread or am I just really weak?

[Sniper]

It's not left hand thread, lol.  A good impact can knock them loose.  HF sells a decent battery operated one if you don't have an air compressor.

 

 

If the engine were still in the car I just use the starter to break it free.

 

 

 

 

[Doug&Deb]

Got it. Couple seconds with my impact then a breaker bar. The plugs were wrong. I was running non resistor plugs with a .035 gap. Oops. Installed 306’s and it’s good. These flatheads really are forgiving lol.