I installed a new double roller timing chain from Summit in my 351m today, but the crank pulley doesn't line up with the other pulleys correctly. It appears that the harmonic balancer is about 1/4" out from where it used to sit. Is the double roller timing chain gear thicker? Am I missing something else, or is it just not installed correctly?

 

If your timing cover plate is flush with the block, then I would think the bolt on the balancer isn't torque down properly.

 

Got it figured out & learned a valuable lesson I thought I'd share: When re-installing the harmonic balancer, do not pull it in using the bolt -- you will screw up the bolt BAD and need a 3/4" impact gun to get it back out. Hammer the balancer in all the way with a deadblow hammer or a heavy hammer & block of wood, then thread in the bolt. By the way, a 2" bolt will fit as the crank is tapped deeper than the original 1 3/4" bolt, and the crank -- thank God -- is harder steel than the grade 8 bolt. Hope this saves someone a headache.

 

The correct way to do it is to use an installer.It is a pusher with a bearing and cage assembly.Harmonic balancers do not like being hit with hammers.Have a good look at that balancer and make sure the outer ring has not been disturbed or cocked off center of the inner ring.If you notice any shifting marks or wobble when that thing is running,replace the balancer.Only trouble lies ahead after that.The torque on the balancer to crankshaft bolt is 90 lb.ft.

 

I agree completely with Maskedman, using the right tool makes everything easier, but I don't have all the proper tools so sometimes we have to make do. Tapping the balancer on seemed to work for me. It was slow going because I wasn't hitting it all that hard, but it would have been nice to use the right tool. The fact that I had to use a drill to get the old stripped bolt threads out speaks to that very point. If you have a pusher, or can get one, by all means use it -- I don't have one, so used what I had to.

 

I wasn't trying to harp or wear on you.I know too what it is like to have to work with what you have.Those installers are cheap.I bought mine at Rockauto for $30.00,and it came with several different thread stems to push about anything.The cool thing about that tool is the bearing makes turning that nut on the stem super easy.Those dampners slide right on and into place.Glad to see you are up and running again!!