Jump to content
Strawberry Orange Banana Lime Leaf Slate Sky Blueberry Grape Watermelon Chocolate Marble
Strawberry Orange Banana Lime Leaf Slate Sky Blueberry Grape Watermelon Chocolate Marble
Sign in to follow this  
Pirateringo

Can you change engine mounts with a jack?

Featured Posts

Hi all, I am going to be changing the engine mounts on my boat soon. Is it possible to somehow jack up the engine enough to change one mount at a time? I'd rather do it myself than pay somebody, and I have someone coming to help realign

Cheers

 

Share this post


Link to post
Share on other sites
2 minutes ago, Pirateringo said:

Hi all, I am going to be changing the engine mounts on my boat soon. Is it possible to somehow jack up the engine enough to change one mount at a time? I'd rather do it myself than pay somebody, and I have someone coming to help realign

Cheers

 

The easier way is to have a hoist set above the engine and lift it that way.

Share this post


Link to post
Share on other sites

There's a longish topic on this subject less than a week ago....

It helps if folks attempt a search before asking......

Share this post


Link to post
Share on other sites
1 minute ago, OldGoat said:

There's a longish topic on this subject less than a week ago....

It helps if folks attempt a search before asking......

Fair enuff, I'll look 

Ta

Share this post


Link to post
Share on other sites
1 hour ago, Alan de Enfield said:

The easier way is to have a hoist set above the engine and lift it that way.

If you haven't got a hoist you can place a jack on a strong piece of timber across the engine hole. A trolley jack works well but you could even use a bottle jack. So answering the op's question, yes you can use a jack.

Edited by Flyboy

Share this post


Link to post
Share on other sites
22 minutes ago, Jen-in-Wellies said:

Can you change engine mounts with a jack?

 

 

Their name doesn't need to be Jack.

 

Capitals are important :

You could always help your Uncle Jack off his horse.

You could always help your Uncle jack off his horse.

Share this post


Link to post
Share on other sites

Obviously it depends on many factors. Access, type of stern, etc, etc. Having recently changed the mounts on my BMC 1.8 in a semi trad NB I can't imagine using a jack. Even if access had been possible the risk to fingers, toes to say nothing about the engine would have made it a non starter. I used a chain hoist suspended from a 40mm x40mm steel tube across the cockpit. Anything else would have been plain stupid. Hiring a chain hoist is not expensive. On e bay there's a company in the West Midlands who want £20 a week to hire a 1ton hoist (overkill). How much do you value one of your fingers  

  • Greenie 2

Share this post


Link to post
Share on other sites
1 hour ago, Alan de Enfield said:

 

You could always help your Uncle Jack off his horse.

 

Wots uncle jack's horse got to do with lifting engines?

Share this post


Link to post
Share on other sites
Just now, Dr Bob said:

Wots uncle jack's horse got to do with lifting engines?

It wos Jen - Honest !!

She said we didn't need to use anyone called jack.

Share this post


Link to post
Share on other sites
47 minutes ago, Slim said:

Obviously it depends on many factors. Access, type of stern, etc, etc. Having recently changed the mounts on my BMC 1.8 in a semi trad NB I can't imagine using a jack. Even if access had been possible the risk to fingers, toes to say nothing about the engine would have made it a non starter. I used a chain hoist suspended from a 40mm x40mm steel tube across the cockpit. Anything else would have been plain stupid. Hiring a chain hoist is not expensive. On e bay there's a company in the West Midlands who want £20 a week to hire a 1ton hoist (overkill). How much do you value one of your fingers  

Not stupid at all, I've done it many times using a trolley jack. It's no different to using a chain hoist. You obviously can't lift an engine very much but enough to change the mounts.

Share this post


Link to post
Share on other sites
21 minutes ago, Flyboy said:

Not stupid at all, I've done it many times using a trolley jack. It's no different to using a chain hoist. You obviously can't lift an engine very much but enough to change the mounts.

I'd be intrigued to know how you did it 

 

Share this post


Link to post
Share on other sites
1 minute ago, Slim said:

I'd be intrigued to know how you did it 

 

Except for the outboard powered boats, I cannot think of any boat where I could slide a trolley jack under the engine.

Share this post


Link to post
Share on other sites
11 minutes ago, Alan de Enfield said:

Except for the outboard powered boats, I cannot think of any boat where I could slide a trolley jack under the engine.

I never said anything about putting a trolley jack under the engine, you clearly don't understand what I was saying.  The jack goes above the engine on a stout piece of timber across the engine hole, a strop or chain goes over the jack pad and down either side of the jack to the engine lifting points. Simple.

Share this post


Link to post
Share on other sites

Before you start jacking the engine check the mounts to see if they can be dismantled. The mounts on my engine have a threaded rod that can be unscrewed from the flexible base.

You loosen the lower nut on the engine foot then unscrew the threaded rod from the base. Swap the flexible base and screw rod back into the new base. Tighten nuts on engine foot. Repeat for each mount.

The engine remains in position supported by the other three mounts.

Share this post


Link to post
Share on other sites
2 hours ago, Alan de Enfield said:

 

Capitals are important :

You could always help your Uncle Jack off his horse.

You could always help your Uncle jack off his horse.

I went to a panto today. The Fairy Godmother said to Dandini “Your willy’s weak!”  He replied “What???”  She responded “I said, your will is weak!”  

Share this post


Link to post
Share on other sites
17 hours ago, Flyboy said:

If you haven't got a hoist you can place a jack on a strong piece of timber across the engine hole. A trolley jack works well but you could even use a bottle jack. So answering the op's question, yes you can use a jack.

I had to lift/support the engine if my boat a few years ago and I found a scissor jack worked well, they are small and fit between the bottom of the sump and the base plate.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  

  • Recently Browsing   0 members

    No registered users viewing this page.

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.