Hi Everyone! Need help,advice
We have a Perkins 152 with a hurth hsw630 gearbox in our launch and after a big overhaul of the boat we went out the first time and discovered that over 1500rpm approx and 5knts of speed the gearbox will begin to slip we push upto 6.5knts at 2000rpm and then all of a sudden engine revs stay the same but boat will lose drive we bring it back to idle then increase revs and we regain speed seems to be fine if we keep it under the 1600rpm mark but after reading a few forms from years ago slipping is quite a common issue!
Anyone in the Auckland region exper
