Winterizing scarab twin

[Ronnie0471]

anyone know a good link with step by step instructions on winterizing these boats? Thanks folks

 

[Bruce]

Do you need to do more than blow the water out of the exhaust and change the oil and spark plugs before next season?

Does your cooling system have antifreeze in it?

 

[Ronnie0471]

I would say I would need to do the whole shot?? It only has 7 hours on it and I'll be storing it in a heated garage

 

[Ronnie0471]

And yes it is a closed loop system with antifreeze

 

[Bruce]

@veedubtek, do you know what the winterization process is for the BRP engines?

Here is what I will do with our Yamaha. This weekend we are taking the kids camping on an island. It may be our last outing of the year.

1. I am going to add a can of seafoam to the fuel for stabilization and to help with an ethanol fuel I may have used this year. I use non ethanol fuel locally but do not always have the option when traveling.

2. When we load her on the trailer and pull out of the water I will rev each engine to perhaps 50% throttle to blow the water out of the exhaust.

3. Then I will stop by a gas station to almost top the engine off with non ethanol fuel on the way home. This reduces the ability for water to get into the fuel. You do not want to completely top off the tank if it will be warmer when you get her out than when you put her away. Fuel expands when heated and could spill out if it is completely full.

4. I will store her in our garage which does not drop below 60 degrees.

5. I will start the engines once a month to circulate the oil. If I did not have this option I would fog te engines.

6. After an outing or a few in the spring I will change the oil and spark plugs. Many people do this before putting her away for the winter. I believe either way is fine but have a slight preference for not having next years spark plugs in for those first few outings. I do not believe that the Mobil 1 in the engines is used up or will cause any harm over the winter:

 

[Ronnie0471]

Cool thx. That helps

 

[BobJohnson]

there is a post about this here https://jetboaters.net/threads/scarab-chaparral-glastron-rotax-winter-prep.5978/#post-131541

In this, it discusses and the video shows pumping antifreeze through the exhaust and then reving the engines to expel out the anti-freeze. Thought being if anything remains, it is anti-freeze.

How many folks do this anti freeze flush or do you just rev the engines and get the water out? don't like the idea of spilling anti-freeze all over the ground.

In the link or other post, it also discusses lubricating the jet pump. I have a question open on the post about this. Basically, how and where do you lubricate the jet pump?

 

[MikeyL]

BRP's are very much like Yamahas.

Effectively, there is NO WINTERIZATION. One of the benefits of 'closed loop cooling.'

Now some may wanna change oil/plugs now, altho I always prefer to start up in the spring with Fresh Oil. That was, all of the condensation collected in the oil over the winter is drained out.

Seafoam//Sta-Bil: This should automatically be done NORMALLY, not just for winterization.

There IS however 1 important point: IF the boat will be subject to extreme temps, you do most likely need to REMOVE THE BATTERIES, keep them on a good "automatic charger" while sitting on a good 2X4.

And that is it.

There is NO NEED to "foam" an engine, nor to crank it periodically. If it makes YOU feel better, then by all means do it.
Best Wishes to all, Mikey Lulejian - Lake OConee, GA

 

[BobJohnson]

Is it considered "good enough" to simply do the rev the engines for a few seconds to clear the water out of the exhaust system?

Or, is it always better to do the anti-freeze flush? Or, a third option, in my BRP engine manual it says to use compressed air at 100 PSI hooked to the flush out the exhaust.

Rev'ing the engine to get the water out just seems cleaner, easier and safer on the system. But, want to do it right, not easier (if right and easier are different).

 

[Slugger55]

Under the Scarab Jet Boat forum there is a link for: Scarab Jet boat Information Repository https://jetboaters.net/threads/scarab-jet-boat-information-repository.4802/

 

[MikeyL]

Guess what I wrote didn't count ............ LOL !

 

[Slugger55]

Just given information.