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Message: <blockquote data-quote="6brnorma" data-source="post: 85494" data-attributes="member: 5914"><p>OldMachinist may read this and post a diagram of the parts. This is a job that you can probably do. All of the parts are available (not cheap) and the job can be done without pulling the engine. Hard to say which went first…..the coupler or the seals, so, if they were related I'd guess you lost bearings in the distributor housing for the hydro pump shaft first. I've lost lots of couplers but never had one take the distributor drive and seals with it. I would recommend a repair manual as alignment, gaps and tolerances on the coupler are critical to the life of that particular part. Manual and sometimes couplers are available on E-bay.</p></blockquote><p></p>