Lower Unit HELP

crackerjack · #1 06-11-2007, 04:03 PM

Just replaced the water pump on my 1987 mercruiser 3.7l engine. The problem is i can not get the lower unit back into the upper. is there some sort of trick to do it. i greased the o ring on the shaft but it will not go in. any help would be great...thanks

redtech · #2 06-12-2007, 10:49 AM

first not grease on top of the shaft just on the splines second look into the upper shaft check for old o-ring up there

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