Hi All, just wondering if there are any cautionary tales in replacing the fuel pump on a Buick 231 V-6. I have the pump and gasket. My father-in-law (a professional mechanic with 40+ years owning and operating his own shop) said on some mechanical low-pressure pumps, the pushrod can fall out when replacing the pump. Is this typically an issue on the Buick 231? Any heads-up for anything to be aware of appreciated. Thanks.