How-to: Winterize your Indmar Assault 325/340

[Zim]

Made a video winterizing today. There used to be a great thread on here that lost the pictures when Photobucket stopped 3rd party hosting. This was on an Assault 325. May work for 340 also, but not familiar with it first hand.

https://youtu.be/TKCIjKWyiPA

[web]

Well done Sir

[GregInKS]

Thanks a lot! I will be using this vid this week on mine.

KC huh? Nice! We are near Wichita.

[Zim]

Thanks a lot! I will be using this vid this week on mine.

KC huh? Nice! We are near Wichita.

Yes sir... I've got a buddy down in Hutch. I pulled the boat down to the muddy waters of Cheney one day. From that day forward I vowed to go to Table Rock any time I towed that far lol.

[GregInKS]

Yup... Cheney is where we go. It's not bad.

[Zim]

Given the time of year it is.... bump

[AtTheRiver]

Would these procedures apply to the Indmar Assault 330 Cat in a '14 Mojo? If not are there any other online resources? The owners manual basically says take your boat to a dealer to winterize. :-(

Also is there an alternative method where you just allow the engine to suck in pink anti-freeze???

Thanks!

[MJHSupra]

Would these procedures apply to the Indmar Assault 330 Cat in a '14 Mojo? If not are there any other online resources? The owners manual basically says take your boat to a dealer to winterize. :-(

Also is there an alternative method where you just allow the engine to suck in pink anti-freeze???

Thanks!Yes, they are both 5.7L motors.
If you had a Ford Raptor, it would be all different.

Online - nope. This is one of the better places to learn. Some of the other wake boats used the same motors back then. They have forums.

Pretty easy.

There are some threads about filling you block with antifreeze. How to. Try the search.

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[MJHSupra]

It's important not to just run anti-freeze the system, see the stuff coming out of the exhaust, and call it complete. Big no no.

You need to drain all the water first, then plumb the anti-freeze. I recall reading about it takes 5-8 gallons.

Method 1 drains all the water and leave it.

Method 2 drains all the water and then fills with anti-freeze.

I've done #1 for years

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[MJHSupra]

Here is another thread:

https://r.tapatalk.com/shareLink?url=https%3A%2F%2Fforum%2Emoomba%2Ecom%2 Fshowthread%2Ephp%3Ft%3D30422&share_tid=30422&share_fid=27865&share_type=t


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[MJHSupra]

With something like this. Call to get the right part #. GM vs Ford.

https://www.skidim.com/FLUSH-PRO-125/productinfo/DP7/


I've seen others make their own.

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[AtTheRiver]

Thanks for the replies and have abandoned the simple just run with the pink stuff.

Did some more searching and came across this from Indmar: https://indmar.wpengine.com/wp-content/uploads/2016/05/2012-2014-GM-Based-Models.pdf

[Zim]

Thanks for the replies and have abandoned the simple just run with the pink stuff.

Did some more searching and came across this from Indmar: https://indmar.wpengine.com/wp-content/uploads/2016/05/2012-2014-GM-Based-Models.pdf

Yeah that's a good way to crack a block.

[Mjhknox]

Thanks for the replies and have abandoned the simple just run with the pink stuff.

Did some more searching and came across this from Indmar: https://indmar.wpengine.com/wp-content/uploads/2016/05/2012-2014-GM-Based-Models.pdf

Good find on the PDF. Thanks!

[Karl]

27751

Just did my 2014 Mojo yesterday with a 330 assault. The Indmar manual had this pic for the hose that connects the manifolds, but I can't find it on mine. There were two hoses coming off the front of each manifold that went to a T-valve that had a 3rd drain hose, near V drive. This was all I could find coming off the manifolds. Am I missing something? Just got the boat this summer, so first time doing winterization, don't wont to miss something.

[AtTheRiver]

27751

Just did my 2014 Mojo yesterday with a 330 assault. The Indmar manual had this pic for the hose that connects the manifolds, but I can't find it on mine. There were two hoses coming off the front of each manifold that went to a T-valve that had a 3rd drain hose, near V drive. This was all I could find coming off the manifolds. Am I missing something? Just got the boat this summer, so first time doing winterization, don't wont to miss something.

Same for me. No quick connect, just a T.

[AtTheRiver]

One more tip for winterization. I spray all my vinyl, cup holders, areas under seats / lockers with a mildew blocker before buttoning up the boat.

[DOCDRS]

27751

Just did my 2014 Mojo yesterday with a 330 assault. The Indmar manual had this pic for the hose that connects the manifolds, but I can't find it on mine. There were two hoses coming off the front of each manifold that went to a T-valve that had a 3rd drain hose, near V drive. This was all I could find coming off the manifolds. Am I missing something? Just got the boat this summer, so first time doing winterization, don't wont to miss something.

The hose that comes off the T goes to the dripless seal. At least it did on my 09. Its not a good setup as hot water is going to the dripless shaft seal ( causing dripless housing expansion and dripless to become a drippy shaft seal.) This in turn makes the exhaust self draining iirc. I cut mine put a ball valve on it for draining and re routed the dripless cooling off the tranny cooler for cold water.

[nscott]

i have a 2003 supra santera and am trying to figure out how to get to the starboard side block plug. its not open like the port side as there is a walk way. Anyone have any insite on how they did it?

[Zim]

i have a 2003 supra santera and am trying to figure out how to get to the starboard side block plug. its not open like the port side as there is a walk way. Anyone have any insite on how they did it?

Does it look like this?

27804


That does look like a PITA.