IMARS 35HP with Pump Jet

[Lincoln Charlie]

I have a 35HP OMC IMARS (Improved Marine Amphibious Reconnaissance System) with the Pump Jet and the Dewatering feature. It was very difficult to track one down. I found a guy in MN with one which I purchased and had freighted to me here in Tampa, FL. It runs great and starts up right away.

The Military had these commissioned in the 90's by OMC. They are like any other standard 2 cycle 2 stroke outboard motor with the exception of indentations on the pistons. And the pump jet on the lower unit instead of a traditional prop.

They are able to withstand seven days total immersion in the ocean at depths up to 400' deep and then able to be fired up topside after a couple of pulls by the starter expelling all water.

ACT Inc based out of Orlando, FL is the Company that was commissioned to design and manufacture the Pump Jet for the DOD. They offer a lifetime warranty on all their products regardless of original ownership and are going to swap mine out with a brand new one.

I'm curious if anyone on here happens to have the owners manual or operation manual for this motor. I've learned everything I can up to this point by scouring the internet but thought maybe somebody here on RIBnet might have more information they can share with me.

I've attached a few photos of it for your viewing pleasure.

[95gstnj]

Nice motor! I have twin 70 hp durajets on my boat. Holeshot is awesome but top end does suffer. Id be interested to know how yours performs

[Lincoln Charlie]

95gstnj, I love mine. It starts up first pull, idles strong and sings at WOT. I just dropped it off yesterday at ACT Inc in Orlando, FL http://actorlando.com/default.htm I'm having them replace the pump jet via the Accidental Damage Warranty. I'm also having them repaint it from the current NAVY Grey to flat black. They had one in their shop like mine painted black and it looked sharp. I'll post some pictures when I get it back. I'd love to see some shots of yours on here!

- Lincoln Charlie

[95gstnj]

Nice, i'd be interested in hearing the details of the warranty info if you wouldnt mind pm ing me. Here's a link to my boat with some pics and a video.


My SR6

[Lincoln Charlie]

Great shots! I like the GOPRO video too, very nice. I've been meaning to pick one of those up myself. I sent you a PM with the contact details for your warranty servicing.

[Lincoln Charlie]

Here are the updated photos of my IMARS 35hp pump jet. This is the same one that was grey in the original post.