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Compass Marine How To | all galleries >> Welcome To >> Replacing Motor Mounts & The Obstacles > Same Mount Looking Towards The Bow
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Same Mount Looking Towards The Bow

Here is another shot of the scissor jack. I collapsed it entirely and slid it in through the transmission opening in the bulkhead. You need to be careful and use mirrors to make sure you are not jacking on the oil pan or any sending units, hoses or fragile brackets. Oil pans can be used on small engines but I would advise using a block of wood to spread the load. If your oil pan is rusty please do not use it or you may punch through. If possible always use the mount or another strongly supported area of the engine.

Lifting one corner of an engine is not a lot of weight. The weight is so little that I can usually twist the jack screw by hand with no extensions or tools. With the other mounts loose it is very easy to lift one out. If you can get a good jacking angle and find enough support you can lift in the center and raise the front or rear and do two front or rear mounts at the same time.

other sizes: small medium original auto
Mike 06-Jun-2014 09:45
it's good to find that some people still care, other than just the money of the thing. Though some of these jobs may seem simple to the trained, to us simpletons life is a little more difficult. happy to have found your site. Michael Pike West Australia. Thanks!
Daryl 08-Feb-2013 02:10
Love the scissor jack idea. I need to replace the engine mounts on a Ocean Alexander 43 with 2115E Lehmans. Is it safe to put the jack on the hull under the transmission with just some wood to spread the load? Total engine/transmission weight is about 1250 pounds. My guess is that at no point in the project should more than 650 pounds be on the jack and most likely less as the mounts are in from the end a ways and I will be able to jack from the end of the weight.