Re: How do I entend shaft length for 21
Re: How do I entend shaft length for 21
as chris stated,your eng is probably correct,it is the short shaft if it is for 20 in transom,the older and some smaller hp engines have lengths for 15 inch. your 88 120 would be only 20 0r 25 inch shaft(except for modified racing engines)you want the cavitation plate to ride even or slightly above the bottom of the transom,there are adjusting holes on the engine,you might try using the second or third set of holes,try bolting .temporarily and n measure to see where your cavitation plate(its the larger plate on the lower unit above the prop)you want the water to pass from the bottom of the boat and sliding under that plate,but not mounted TOO high,
