Active Active   Unanswered Unanswered

Motor Mount Replacement, A DIY Job?

Keeping your powerboat under power is a lot easier with good advice. Post your power systems questions here.

Moderators: Don Ayers, Al Benton, Don Vogt

Moosemeat
Posts: 73
Joined: Thu Oct 15, 2009 10:31 am
Contact:

Motor Mount Replacement, A DIY Job?

Post by Moosemeat » Wed Jun 25, 2014 9:15 am

The motor mounts on my KFL are scaring me. Some sag way past the 1/16" which I'm told is acceptable.
I just completed a 12v conversion, and when I started the engine (wow, what a difference!), I noticed that the prop was not spinning in neutral like it used to. I can still move the prop with two fingers (with the engine off of course :roll: ), but no spin.
Is this is a DIY job? If you jack up each corner of the engine one at a time, what do you support the jack on? Certainly not the bottom. Any ideas? Thanks.

User avatar
mfine
Posts: 1405
Joined: Sun Jun 06, 2010 8:16 pm
Location: Pittsford and Penn Yan NY

Re: Motor Mount Replacement, A DIY Job?

Post by mfine » Wed Jun 25, 2014 4:56 pm

I would use a chain fall or properly rated winch and lift the entire engine up and out of the way. Definitely not a place I would want a band aide solution done while the engine is in place.

User avatar
JohnKadimik
Posts: 454
Joined: Mon Jul 07, 2008 8:30 pm
Location: Lake Hopatcong, NJ
Contact:

Re: Motor Mount Replacement, A DIY Job?

Post by JohnKadimik » Thu Jun 26, 2014 4:06 pm

Easy job to do in the boat. Do them one at a time, and you can use a 2x4 to leverage off the stringer for lift. You don't need much lift, just take the weight off. Done it dozens of times. Good luck!

User avatar
Doug P
Posts: 1036
Joined: Thu Jul 24, 2008 4:24 pm
Location: Pacific NorthWest
Contact:

Re: Motor Mount Replacement, A DIY Job?

Post by Doug P » Thu Jun 26, 2014 5:42 pm

JohnKadimik wrote:Easy job to do in the boat. Do them one at a time, and you can use a 2x4 to leverage off the stringer for lift. You don't need much lift, just take the weight off. Done it dozens of times. Good luck!
And don't forget to disconnect the shaft :)

User avatar
JohnKadimik
Posts: 454
Joined: Mon Jul 07, 2008 8:30 pm
Location: Lake Hopatcong, NJ
Contact:

Re: Motor Mount Replacement, A DIY Job?

Post by JohnKadimik » Thu Jun 26, 2014 6:27 pm

Yes, good point Doug!

User avatar
evansjw44
Posts: 1865
Joined: Wed Jul 05, 2006 8:46 am
Location: Grosse Pointe Farms, MI
Contact:

Re: Motor Mount Replacement, A DIY Job?

Post by evansjw44 » Sat Jun 28, 2014 8:48 am

You'll want to check the engine alignment after you change the mount.
Jim Evans

Moosemeat
Posts: 73
Joined: Thu Oct 15, 2009 10:31 am
Contact:

Re: Motor Mount Replacement, A DIY Job?

Post by Moosemeat » Sun Jun 29, 2014 8:45 am

Thanks for the ideas. I took the boat down to George Hazzard's Wooden Boat Restoration, and he had it done in less than three hours. Drive in- drive out service! The right tools make it look easy (engine lift, air tools).
Those mounts were really sagging, but then everything sags with age. :roll:

Post Reply

Who is online

Users browsing this forum: No registered users and 16 guests