Just tore down a 125 force outboard swapped mid-section and replaced upper motor mounts and kingpin. Now when I put the engine in, water comes in from around the kingpin cap and lower shock area and fills the midsection with water which causes all the exhaust to enter upper cowling and bog the engine. The idle exhaust boot is intact, the middle leg seal has seen better days but seams to be holding. Would a gap filler work to seal that lower shock area?