1999 Volvo Penta "WT" Models Workshop Manual, Page 316Get this manual
Tie Bar AdjustmentTwin Engine Installation
On deep Vee shaped boat hulls, toe-in condition should be created for improved performance and efficiency, commonly used toe-in condition is one in which dimension will be '4 to 3S in(6,35 to 9,53 mm) less than dimension Remove the steering tie barfrom the port tiller armLoosen port jam nut of the tie barTurn jam nut out 1'6 to 332 in(1 ,59 to 2,38 mm) as required, and screw in port steering tie bar end Retighten the jam nut
inspection hole to insure adequate thread engagement between the rod and tubeFailure to ensure proper threads engagement could result in component failure resulting in possible loss of steering control