I've got a leak in the fuel system on my Pearson 39. The engine is a Westerbeke 4-107. After taking off and replacing the copper washers on the injector line I thought was leaking, it appears that the injector pump itself is leaking. It's a 1974 engine and the pump looks to be original. The prices for a new pump are pretty high, so I was wondering if anyone had any experience with repairing a fuel pump or having it rebuilt.