Posted by Mark Murray on March 11, 2022 at 08:09:07 from (98.33.58.19):
I follow this thread and face a similar problem and think and hope you Wizards have an answer. I have a 1964 Ford 4000 (4 cylinder diesel) with a Ford Loader, not sure if it is a 720 or 730 but likely one of those. I have the same pump set up as Tsterrett- notably the exact same coupler and linkage. I have had to change the coupler every couple of years, so I think I agree with caterpillar guy that the coupling is not heavy enough for the load. How do you suggest I put together a heavier replacement that will not tear things up when whatever overload is causing problems now reoccurs?
My pump shaft is .75, as is the shaft; The shaft is a 10 tooth spline that goes into the crankshaft connection and is 8.85 long. The coupler and flanges are as shown here:
I have seen 6 tooth splines shafts, 7/8 shafts with different splines and would really appreciate someone who has gone to a heavier system with success to share that. Thanks!
And if any of you know the Late Pete Piffer, he was always such a knowledble and helpful guy, I would have just called him on this... Please share the name of someone like Pete out there who has such a command on 1960 era Fords... nobody I found in my California central valley has a clue!
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