The Ford Barn

psimet · 07-14-2025, 09:41 AM

Just running this by everyone for an idea or two. Mounting up my freshly machined flywheel on to a rebuilt engine. Runout is slightly over the recommended amount.

I don’t remember absolute measurement but it was 0.001”-0.002” over whatever the red book and/or the engine builder’s recommendation was.

The face of the crank shaft had existing dowel pins in it. I was going to pull the flywheel, replace the dowels, clean the face of that crank end, and rotate the flywheel 180 degrees to see if I can pull that runout down.

If all that fails I guess I’d shim it as mentioned in places. Guessing I would use a washer style shim under a bolt or two - any other ideas or advice before I resort to a shim or two?

07-14-2025, 09:41 AM	#1
psimet Senior Member Join Date: Apr 2021 Location: Elgin, IL Posts: 247	Flywheel Runout Just running this by everyone for an idea or two. Mounting up my freshly machined flywheel on to a rebuilt engine. Runout is slightly over the recommended amount. I don’t remember absolute measurement but it was 0.001”-0.002” over whatever the red book and/or the engine builder’s recommendation was. The face of the crank shaft had existing dowel pins in it. I was going to pull the flywheel, replace the dowels, clean the face of that crank end, and rotate the flywheel 180 degrees to see if I can pull that runout down. If all that fails I guess I’d shim it as mentioned in places. Guessing I would use a washer style shim under a bolt or two - any other ideas or advice before I resort to a shim or two?