I replaced the hight vol pump with a melling std vol pump, and drilled the gear for a larger pin. I think I will be replacing this Mallory because every time I pull it after running the engine, even for a short time, there is too much resistance on the shaft. I don't think the bushings are getting enough
oil for some reason. Once I
oil the shaft and give it several spins by hand it loosens up. The gear is not binding though, I checked this when I put in the new pump, there is about 1/16" play in the rod. It has taken less than 300 miles to shear the pins so I will keep you all informed. Thanks again for all of the feedback, I am going to save this thread for the next guy that has this problem.
Matt