Bolt spacing

[135sohc]

I dont have a non CB (4 bolt) crank sprocket handy to measure the bolt spacing pattern for the crank pulley. Making a tool here that will pickup on that pattern, but my guess that is was the same as a 5 bolt for center line spacing proved to be wrong.

Anyone know for sure ?

[135sohc]

1.755" or within a few thousands there of.

[chromguy]

I will check my stock

[chromguy]

I measured my four bolt at 1.75" and yes the same diameter circle as the five bolt

[135sohc]

My mistake in how to measure an odd number of holes (5 bolt crank sprocket) seems to have been the problem. I was snapping dimensions from center/center like an even # pattern when it should have been from center to edge.

[chromguy]

My mistake in how to measure an odd number of holes (5 bolt crank sprocket) seems to have been the problem. I was snapping dimensions from center/center like an even # pattern when it should have been from center to edge.

So are you good for measurement now?

[135sohc]

I updated the DXF and next week if time allows I'll be remaking the puller I did last week but on a better machine with true 3 axis capability and much tighter dimensional control.