Broke it today up on the mountain.

Dana67Dart said
Love cutting the corners!

Looks like you had a blast responsibly.

I was on i70 going east up over the rockies, near Glenwood springs IIRC the road follows the river, I had two lanes all to myself, just cruising along in the family wagon by myself on the last few 100 miles of my trip from SoCal to northern Colorado. It was sweet... Then just shy of the Eisenhower tunnel I noticed the engine temp was a bit high and engine had very little power. I turned on the heater, and rolled down the passenger window. Then I heard it reverberating of the gardrail, knock knock knock knock, spun a rod bearing.

1969383S said
I Have never broke a flex plate, converter yes. You seem to be happy about it so all good yes? Fix it and drive another day. Always fun!

dartfreak75 said
Dang bud that sucks. But at least you have something to do now lol that thing sounds wicked!

mderoy340 said
Agree. Weak spot on a 904/A500 is the small diameter converter hub. Make sure it did not crack and take the pump drive ears with it.

512Stroker said
I had an old Tahoe ( I know it's a chevy) that I was convinced the flex plate had failed.
Ended up being the lockup converter the plate was OK and was reused in the repair.

j par said
Is there anyway you can use a solid flexplate and just weld the weights to the torque converter? Or even to the solid flexplate? I know I've knocked them off a 360 torque converter and welded the weights onto a 318 torque converter before...

plumkrazee70 said
I broke a flexplate, once. It was because I forgot th dowel pins from the motor to the trans. A new flexplate was all that was needed.

What do you think caused it to break?

Just got under it with my flashlight, phone camera and remote starter switch.
Look what I found.
I cranked the engine a little and the flexplate is fine and all the bolts are tight, so I started looking everything over real close.
That'd do it.

I used the factory balancer when I put this thing together and I think I might need a new one.:D

The shiny place is where the balance ring is supposed to be.
All the metal scraping noise must have been the ring hanging on the back side of the pulley with the motor running.
I'll order one for it today.
Since I run an electric fan nothing is even in the way to pull it.