Your pump was supplied originally by Carter fuel systems to GM which supplied the long block to Mercruiser
Summit Racing has them for a reasonable price. Your local NAPA can also supply the proper marine fuel pump
40-50 years ago, when the motor was new and maintained, it was a good motor
However 40-50 years later, with unknown maintenance and operation, who knows
As posted above, get it cheap enough. Plan on putting time and money into it
None of the comparisons or information of how something that was new 40-50 years ago would be relevant
You are buying used .....How was the drive maintained?
What is the wear ring diameter,? Impeller clearance?
the tracker branded motors were only on the tracker boats. so this is a second hand motor.
what is the history of this motor
as AD asked, is this a new to you problem with a long-time owned motor, or a new to you motor with a problem?
dont give tower manufacturers that much credit. they are slapped-together assemblies that leave the factory with sharp edges in the drilled holes and open windows in castings for wire routing. iff and I mean iff, the tower manufacturer was any good, they may have left some weld wire in the...
not sure on your yamaha, however on OMC, Mercruiser and Volvo, slightly raise the front of the motor slightly and REMOVE the front mount. replace the belt. many people will zip tie a replacment belt to the front mount.
replace the front mount and then check alignment
