Gidday,
A few years ago a guy doing a routine servicing of the motor said he was unable to remove the lower unit to phyically check the pump impeller. He said that the pump was operating normally so that it didn't matter at the time but that I might need to bring it back when the pump failed and that he might need to go in from the top.
I have seldom used the boat since but I am considering selling and I tried to remove the lower unit myself but it seems solidly on. I thought that some penetrant might help so tried spraying wd40 on the joint a few times but that didn't help. I am happy that there are only four bolts to be undone so am presuming that there is some corrosion welding the unit in place.
My questions are..
1. Is there a better penetrant to use and what else could I try?
2. Any idea what the costs might be to go in through the top?
Any suggestions would be welcomed.
Model is M18D 350A.
Thanks
Jeff