How to jack up diesel to replace motor mount? - SailNet Community
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post #1 of 16 Old 02-07-2015 Thread Starter
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How to jack up diesel to replace motor mount?

Hello. I have a Volvo Penta 2002 and need to replace the rear motor mount. Any idea how I can jack it up? There is very little room under the transmission and some room but not much up front but don't know if i can effectively jack up the rear from the front? The other idea I had was to use a come along or pulley from the boom to lift it? Any ideas would be helpful. I need a super small jack I guess (short)? Thanks.
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post #2 of 16 Old 02-08-2015
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Re: How to jack up diesel to replace motor mount?

Airbag type jack maybe? Or just hoist from above if the boom is convenient.

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post #3 of 16 Old 02-08-2015
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Re: How to jack up diesel to replace motor mount?

usually you can find a place to use a lever or crowbar on the frame or structure, have some one apply pressure, while you slip a block or pair of wedges under.

You will need to at least loosen the other mount on the side you are working to get movement. Other boats may have a shelf/tray or other structure that you can use as a lift point to do the coffin hoist.

best of luck
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post #4 of 16 Old 02-08-2015
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Re: How to jack up diesel to replace motor mount?

Quote:
Originally Posted by outdoorsman37 View Post
.....The other idea I had was to use a come along or pulley from the boom to lift it? ......
There you go.


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post #5 of 16 Old 02-08-2015
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Re: How to jack up diesel to replace motor mount?

You will have to free both rear mounts. The wee nuts are likely to be rusted in there and may be reluctant to move. A big chunk of 4"x4" (or similar) could be wedged in there to lift the motor at the back.

You will need to disconnect the gearbox first, of course.
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post #6 of 16 Old 02-08-2015
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Re: How to jack up diesel to replace motor mount?

I've heard someone mention inflating a basketball under their engine to lift it. I haven't tested it myself, but you might try some research along that route.
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post #7 of 16 Old 02-08-2015
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Re: How to jack up diesel to replace motor mount?

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I've heard someone mention inflating a basketball under their engine to lift it. I haven't tested it myself, but you might try some research along that route.
I suppose you could evens slip a football under there, just make sure it is not a Patriots' fan that is inflating it!
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post #8 of 16 Old 02-08-2015
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Re: How to jack up diesel to replace motor mount?

Go to a tool rental place and rent a "Portapower". This is a hydraulic power system with plenty of ends that will do almost any job from straightening bent metal (my davits) to lifting an engine by slipping the duck bill attachment underneath and lifting 1/4" to about 3". Don't forget to place some wood under the trany and on the hull if you have room, to spread the load.
There is usually the right tool for any job; you just have to know that it exists.
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Last edited by capta; 02-08-2015 at 01:28 PM.
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post #9 of 16 Old 03-03-2015
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If there's enough clearance try a car scissor jack under the engine. Take care to place jack on strong part of engine and not at center of oil pan.
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post #10 of 16 Old 03-04-2015
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Re: How to jack up diesel to replace motor mount?

On Maine sails tutorial he says use a Honda CRX spare tire jack- it has very low profile- I bought a used one cheap off e-bay a while back. Here is one:

Honda CRX Jack 89 90 91 92 | eBay

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