1 reply to this topic

[GotTheRuns]

Good morning, all...

I can't apologize enough for having to ask this question. It is evident that this topic has been beaten up enough... but I've combed through the forum and have yet to find an answer to my specific question.

I have a '99 Challenger w/ Twin Rotax engines. This is my first year of ownership and have decided to tackle the winterizing project myself. After researching the topic, it seems as though pumping RV antifreeze through the hose intake ports (back of boat) may be the simplest method of flushing the water out and the antifreeze in. For those of you who are familiar with this method, how/when are you fogging the engines?

My hope was to spray the fogging oil into each air intake box, until the engines choke out. I would then follow this up with spraying the fogging oil directly into the top of the cylinders. Doing this prior to flushing would be counter productive to fogging, correct? And doing this after flushing would be counter productive to flushing, correct?

What am I missing here?

Thank you for your time and input.

[GotTheRuns]

My apologies, folks. I may have incorrectly assumed that, after turning off the pump, that the running engine would continue to evacuate the RV antifreeze that was pumped into it. Apparently, this is not the case.

 

To answer my own question...

 

Start the engine.

Start the pump (to push the rv antifreeze completely through the system).

Stop the pump.

Apply fogging oil to the air box (to choke the engine out).

 

The entire process should take no more than 2 minutes per engine.

 

If this is wrong... please feel free to stop me!

Thank you.