The pump has a pretty stiff spring in it. Hard to move by hand.
Also, you can buy pumps for these trucks at a mom & pop parts store. When I bought a new pump for my 235, they had 3 options. No sediment bowl, with bowl, and with bowl and vacuum pump. They had all three on the shelf. Can't recall the exact price, I think the vacuum pump model was around $60. And these wre new pumps, not rebuilds.
