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Slowpoke, Been meaning to get back with the results. So far so good. I think someone may have crossed threaded the bolt after installing a front seal. Engine had a fairly new waterpump on it when I bought it. Shop manual says put a new seal in when changing waterpump. Guess ya gotta take the same stuff off to do both jobs so ya might as well do both. Bolt was tight but not completely seated. Balancer had wobbled and damaged the keyway. We repaired the keyway with Belzona 1221.(liquid metal). I borrowed a set of taps from work. 5/8-18
I ran the starter tap in and left FIL to finish up while I went to get the balancer. Was told the bolt would come with it but of course they were wrong and did not have 1 like I needed. Rode around for 1.5 hrs looking for a bolt before giving up. Got back to FIL and he is about to call out the FBI to look for me(cell phone laying on truck seat with ringer turned off).
He has a bolt in his hand and says it will screw right in with finger pressure. Whew! He got the bolt out of a 67-289 he had out in another shed. Looks like Ford has used the same bolt for quite a while. 5/8-18 but don't remember the lenght. Pretty simple job if things go right. Take your belts, fan and shroud off. Then you can take the crank pulley off (4 bolts) and a whack with a BFH. Use a puller to take the balancer off. This maybe where my problems started if someone used a puller that was to small and boogered up the threads in the crank.
It should be a tight/pressed on fit for the new one. If you don't have a instalation tool a longer 5/8-18 bolt will work to get it up on the crank until ya can use the original bolt. I gotta couple hundred miles on the repair so far pulling the hay burners to the local shows. Keeping my fingers crossed. Good luck and let us know how it goes. Marty
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