59A Flathead Front Pulley

[A BONED]

Hey fellas, I have a '39 Merc flathead with one of those spaced out two belt pulleys on the front of the crank. I can't for the life of me manage to get this thing off. Can anyone give me some advice?

[bruce lee]

If your not going to keep it after you take it off you can use a air chisel/air hammer and get it off. Or a slide hammer. If you are going to reuse it then you will have to make a puller.
You will also need to raise up the motor to get it out.

[bruce lee]

Put some heat on it too where the crank bolt go's.

[alanwoodieman]

remove the crankshaft bolt, raise the engine for clearance, make/borrow a puller that will go under the outmost pulley, place a slug or very heavy/multiple washer into the hole in the pulley and use jack screw to back off the pulley. if you want to use heat--be sure it is used around the outside of the pulley or else it (heat) will bind it up even more

[Karl Wolf]

Or, do what I do-
Go under the car, using a dull chisel, find the shallowest angle behind the pulley. Go to one side of the pan a bit.
It's still a pretty steep angle.
Closest to the center, place the chisel back of the center of the hub, crosswise.
Hit with medium size hammer.
Optional: rotate crankshaft once in a while
Never had it fail, or ruin the pulley.

Karl

[A BONED]

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Some good information fellas, much appreciated.

Chris.

[flatheadmurre]

Hammering sideways on the cranksnout is an absolute no no...you can break it !
I use the same aproach as Karl.
Using a piece of flat iron lots of your favourite penetrating lube and if all else fails some heat.
If you just want to get rid of the outer shieve it´s attached with 3 big spotwelds to the center...could just grind them away and use the rest.

[Brian]

Yep; Karl's method is the way to go.