Now for the cowl vent. Tape everything first. Clean off old glue. Now glue in the rubber seal. I found that it all fit nicely after trimming the rubber to fit just inside the vent when closed. Close vent down, then trim with a very sharp exacto knife. Carefully ease the vent into the hole, then match up holes to the inside hinges and insert bolts. Hold vent down tightly while tightening bolts. Now connect adjuster arm and insert bolt. snug boltand check movement. Find the happy medium between tight closure and wide opening.