5.9 Magnum MPI swap flywheel idea
Great pictures, exactly what I was hoping for! Thanks!
I'm not sure it would be an issue to cut the flexplate down until it fit. From what I've been able to tell, the notches on the flywheels are right up against the back of the flywheel itself, so as long as the sensor wasn't going to be hit by the flywheel (or the end of a bolt or something), I bet it would work fine.
This is a v6 flywheel (below) and it appears to be under cut under the pressed on ring with the notches. But the 5.9 ones are cut right into material cast as part of the flywheel.
I guess another idea would be to knock the tone ring off the above flywheel and then see if the 5.9 flexplate would sandwich behind it without interference between the weights on the flexplate and the back of the flywheel. Assuming that the flange for the tone ring on the flexplate would fit where pressed on tone ring sits now.
That would at least allow me to use a 10.5" clutch without machine work, but I would still need a different bell.
Here is a link to the post where I found that. http://www.jeeps-offroad.com/f41/engine-swap-bellhousings-4740/index7.html#post251292
Another thought might be to grab the v6 flywheel, machine the outside down to fit a 130T ring gear and bolt it up with the 5.9 flexplate sandwich between the flywheel and crank. It already has the 10.5" clutch pattern, so the only machining is the od, and it's pretty thin there so maybe it would be less expensive as well. I would also save the cost of balancing it as the flexplate would take care of that. In some ways it isn't much better than starting with a 5.9 flywheel to begin with, but in sure seems easier.
Great pictures, exactly what I was hoping for! Thanks!
I'm not sure it would be an issue to cut the flexplate down until it fit. From what I've been able to tell, the notches on the flywheels are right up against the back of the flywheel itself, so as long as the sensor wasn't going to be hit by the flywheel (or the end of a bolt or something), I bet it would work fine.
This is a v6 flywheel (below) and it appears to be under cut under the pressed on ring with the notches. But the 5.9 ones are cut right into material cast as part of the flywheel.
I guess another idea would be to knock the tone ring off the above flywheel and then see if the 5.9 flexplate would sandwich behind it without interference between the weights on the flexplate and the back of the flywheel. Assuming that the flange for the tone ring on the flexplate would fit where pressed on tone ring sits now.
That would at least allow me to use a 10.5" clutch without machine work, but I would still need a different bell.
Here is a link to the post where I found that. http://www.jeeps-offroad.com/f41/engine-swap-bellhousings-4740/index7.html#post251292
Another thought might be to grab the v6 flywheel, machine the outside down to fit a 130T ring gear and bolt it up with the 5.9 flexplate sandwich between the flywheel and crank. It already has the 10.5" clutch pattern, so the only machining is the od, and it's pretty thin there so maybe it would be less expensive as well. I would also save the cost of balancing it as the flexplate would take care of that. In some ways it isn't much better than starting with a 5.9 flywheel to begin with, but in sure seems easier.
