View Full Version : nut size on 2f crank pulley?

10-14-2011, 12:13 PM
Hey does anyone know what size that big a$$ nut is on the crank pulley? And how do I get it loose without turning the engine over. I have the head off. Thanks for any help. Steve

10-14-2011, 12:31 PM
Should be 46mm.

I got mine off by having someone stand on the brakes and then I hit it with a 1/2" impact wrench.

10-14-2011, 12:38 PM
I couldn't easily find a 46mm, so I have a 1 13/16". The ratchet is a 3/4 so I also have an adapter to use 1/2" ratchet/breaker bar.

I've had great success with an 1/2" impact wrench. When the impact is not available, I've used a small ratcheting strap wrapped around the pulley and attached to the frame to keep the engine from spinning while working the socket with a big breaker bar.

10-17-2011, 04:23 PM
You can't fit an impact wrench without taking the whole bib off, even the hinge gets in the way. But once you get it loose a regular ratchet works just fine.

I used my big a$$ed socket with 1/2-3/4 adapter to turn my engine to TDC when I changed out my distributor a couple weeks ago. It is real easy to get to from underneath.

10-17-2011, 05:49 PM
If you run a bunch of extensions and bend the bib a bit you can. :hill: