Sea Doo RXP Winterization Question

[full_tilt]

HI everyone-

this question is for Sea Doo techs or anyone who has lots of experience winterizing the Sea Doo 4-TEC supercharged engines

this question refers directly to the Sea Doo service bulletin #2006-15 with the subject: Storage Procedure for 4-TEC which can be viewed here... http://www.sea-doo.net/pdf/2006-StorageProcedure4TEC.pdf

under the section Intercooler and Exhaust Manifold Antifreeze Protection the instructions are to remove both intercooler hoses... acording to the service bulletin the lower intercooler hose is removed to allow any water in the intercooler to drain... the instructions also say to position the removed lower hose as low as possible into the bilge to allow any water in the exhaust manifold to drain

so here's what I've noticed... have winterized my 2006 RXP twice now... both times when I've removed the lower intercooler hose no water has come out of either the intercooler or the exhaust manifold. I can say this hose is an absolute pain to get off. I still need to winterize my 2007 RXT and don't look forward to taking another lower intercooler hose off again.

On to the question...

So is it really necessary to perform this step & if it is are there any tricks to getting these super tight hoses off

 

[full_tilt]

update

OK so here's what happened... just winterized the 2007 RXT and decided to take off the lower intercooler hose for the peace of mind...

water actually did come out of this hose - to facilitate the removal of the hose, I gently slid a flat screwdriver between the hose and nipple and shot a squirt of WD 40

would still be interested to hear opinions on this matter

 

[seadoosnipe]

Idea?

I have an idea that comes from the procedure in winterizing my 787cc. On your open loop system, which is water brought in from the outside. I think it logical that you be able to take off your water supply inlet from your pump to the exhaust manifold (larger hose), then the smaller hose from the exhaust manifold to the pump (at the manifold itself), take a funnel and pour coolant into the larger hose until you see coolant come from the nipple of the exhaust manifold. You'll probably see it come from your exhaust system too. When coolant comes from the exhaust nipple, plug or tie off the inlet hose at the same height as the exhaust nipple to ensure the entire open loop is flooded.
I think that's a good question and my answer may be one you can ask a mechanic at your local dealer. Their procedure is asking you to pop the hoses to ensure there is no water left standing. When you pull your Doo out of the water, it gravity drains the open loop. They just want you to ensure there is no standing water in your components. No water, no freeze. Well, what if you put anti-freeze in the system. Seems to me that your protecting it that way too!.......If you think about that route or ask about it, I'd recommend a coolant that is safe for aluminum engines.