[DeTomaso] Harmonic Balancer

[sean mundy]

Oh now more things to check.  The Romac balancer says its a Ford C/W with 28oz balance Dual Keys PN 0241SA/28/B.  
My timing chain gear and crank gear seem to be lined up correctly with the dots matched up.   
My #1 piston is at TDC and both valves appear to be closed.  I test fitted the Romac balancer and the 0 timing mark is way off the timing pointer.  
I put my old balancer back on and the 0 mark lines up right on the timing pointer.   WHAT!!
When I stacked the two balancers I lined up the keyways on each and also the 28oz balance.  
Thats why I assumed the old balancer was bad.  Now it seems the timing marks on the Romac are not correct! 
Nothing is ever easy for me.



From: JDeRyke at aol.com
Date: Fri, 26 Oct 2012 15:43:52 -0400
Subject: Re: [DeTomaso] Harmonic Balancer
To: seanmundy at hotmail.com; detomaso at realbig.com

Second possible problem with balancers: the OEM harmonic balancer had a 28 inch-ounce imbalance weight built in to help balance the crank, and the OEM flywheel did also. Then, to keep us alert, Ford changed the balance factor in the early '80s for pushrod small blocks to 50 inch-ounces. So when (not if) you order a new harmonic balancer, be very sure you specify a 28 (or 28.2) in-oz balance factor- and that you receive what you orderered. Mixing up the factors on either balancer or flywheel will make a stock-balanced engine shake like a wet dog and the only fix is to change the new part for one done right! FWIW- J Deryke