Mercruiser shift interrupt switch

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Home Forum Photos Documents. Shift Interrupt Switch Issue. I purchased a SR2 with a newer 5. I love the boat but it will not come out of gear when docking. Mechanic tells me fix is new ICM T02 which will allow proper working shift interrupt switch. My layman question: is there a more basic fix to overcome issue? If the switch grounds out the ignition via coil then why would new ICM be needed?

Mercruiser shift interrupt switch

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See the following Mercruiser Parts chart. There has been two new Shift Plate Kits developed to replace some of these switches. Please see the chart below to determine if this Shift Plate Kit will work for your specific application. For the following models that have the Shift Interrupt Switch mounted to the top of the aluminum rocker cover, an alternate location will have to be selected for mounting the replacement Shift Plate Kit. The models listed following have the Shift Interrupt Switch mounted either on the Transom Plate or on a shift plate assembly attached at the top of the inner transom plate, with the hydraulic reverse lock valve assembly.

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Mercruiser shift interrupt switch

The Mercruiser shift system the most common one can come across as complicated but it is relatively simple once you get the hang of it. To understand the shift system, you have to start from the basics. So, what is a shift interrupt switch? A shift interrupt switch is a part of the drive that allows boat owners to switch to neutral quickly. You will find the shift interrupt switch on the shift plate mechanism. Its appearance is that of a mini-switch. Experts also refer to it as the kill switch or shift switch. A drive is synonymous with a motor or engine, so your shift switch sits on the marine boat engine. All boats made in the past twenty years come with a kill switch. The kill switch serves various purposes, but its primary role is to stop the motor from running.

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Refbacks are On. Refbacks are Off. The shift interrupt switch is wired to the ICM which has circuitry to cut the ignition when activated. You must log in or register to reply here. History Forum. Likes: 0. You are using an out of date browser. Just got a new project boat! Thread starter Don S Start date Dec 26, If you look at the wiring diagram you will see the switch is wired to the ICM. You can see the undercut and how the shift dog fits in the gears in the picture below. Thanks: 0. Alum Rocker Cover. It may not display this or other websites correctly.

In the world of boating, where the harmony between man and machine is essential, there exists a lesser-known yet vital component that ensures the seamless operation of boat engines: the Mercruiser shift interrupt switch. This unassuming yet indispensable device plays a pivotal role in boat engine systems, influencing performance, safety, and overall functionality.

I need some help installing a shift interrupt on a multi port and multi coil engine , I have a switch that can be used on a momentary open or closed circuit ,but not sure what to attach it to any help would be grateful. Thread starter Don S Start date Dec 26, Make sure the engine is adjusted so that it idles at the proper speed Close X. Joined Mar 28, Messages Vendor Directory. Because it is a 3. Contact us. Joined May 22, Messages Home Forum Photos Documents. I'm hoping the timing is just off some.