Mercruiser 470 - Cam Seals Repair Questions

[PutterJC316]

Ayuh,..... Welcome Aboard,..... Pull the outdrive 1st,..... it's only 8 nults,....

Thx for the tip Bondo, you were right the outdrive was pretty easy to remove.

Important note though!!!! To anyone who is new to this repair like me, when it comes time to remove the outdrive make sure you remove the center pin first before you take out the six bolts holding it to the gimbal. If you don't, when the last bolt is removed the unit could come out quickly and get caught up on the Trim rams.









Other videos I've seen the unit once unbolted was hard to remove, but for me that wasn't the case. I have posted to very good videos of the removal process for the easy remove and the stuck remove.

Stuck Remove Video Link
Easy Remove Video Link

Also make sure your throttle is pushed all the way forward and the trim is all the way down before unbolting the outdrive.

And lastly, if you do remove your outdrive like I did it's probably a good idea to have a gasket kit order before hand just incase your unit gasket is in the same condition mine was. I'm going to have to refer to my boat operator's manual to find the correct part number for this gasket.

Thx again Bondo for the help.

 

[ROY WILLIAMS]

my MCM470 year 1978 is maintenance ... did all of the engine and the boat . wellcraft 20ft ..every year ...the moly grease is the gimbal shaft drive , u joints and the shift shaft cable parts ..
I was every year of the gimbal rubber housing inspect it .. then cleaned it .
the trim cylinders are cleaned it .. did the silicone grease of the trim cylinders of the outdrive shaft and the rubbers ..
the corrosion is all of those pictures ...