Re: 55-56 oil pump

Posted by Owen_Dyneto On 2014/3/24 8:53:08

I agree with PackardV8 and suspect that elimination of the coupling effect may be a mistake. Problems with installation may not be the only issue, the coupling is there no doubt to accommodate any stackup of machining tolerances and without it I'd be concerned about rapid wear somewhere along the line from the cam gear on down to the pump. I'd be interested to hear what Jack Vines has to say about it. Just think about all the machining processes involved from the distributor body all the way down to the oil pump housing - if each process had a tolerance of only 0.001" and they all stacked up cumulatively, it would amount to quite a bit, and this was no doubt the reason for the coupling. If just by coincidence or luck they all negated one another then your plan would be OK.