View Full Version : pcm flywheel info and prop rotation

07-15-2010, 01:12 PM
I am in process or restoring my '79 stars and stripes. Can anyone tell me what rotation my PCM 351w is or how to tell. The motor is back from a rebuild and I need to make sure of the firing order. Also the shop that pulled the motor lost my flywheel and H balancer. (idiots or liars) From online research the best I can tell the flywheel should be 157 teeth 28 oz. Can anyone confirm or deny? thanks

07-15-2010, 01:25 PM
The flywheel info may be in the Service Manual (http://www.correctcraftfan.com/Downloads/PCMsvcmanual.pdf)

07-15-2010, 01:33 PM
The 351w PCM used the 12 inch flywheel with 157 teeth there are tons of used ones out there and a new ring gear is only about 25 bucks if it needs replacing. I think I read an old post that [email protected] had a stack of flywheels hanging around you might want to call him. The prop rotation is LH which is standard automotive rotation looking at the flywheel.

07-15-2010, 04:50 PM
Thanks for the help! I should have signed up here first before spending a week online with conflicting info.