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Old 21 October 2013, 19:54   #1
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Show of hands...

Who has actually had problems from condensation in the petrol tank over winter?

Also: opinions on fogging an elderly two stroke? I didn't do it last year and all appears to be fine. But then again I probably never left it along for more than a couple of months, whereas this year it's liable to sit until spring.

Cheers.
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Old 21 October 2013, 20:26   #2
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Is it a portable or fixed fuel tank ? If portable and knowing this will be my last outing, would consume the whole tank if possible and get rid of ther rest. No good to keep small amounts over the winter, running fresh fuel is the way to go. If having a fixed internal tank, that's other story...

About fogging, never fog my 2 strokes engine as like to use my rib/engine combo all year round as possible, if in need to come for a short stop, usually run it on muffs for 10 minutes, that way will be internally well lubed till next outing...

Happy Boating
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Old 22 October 2013, 02:32   #3
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Clarification: it's an internal stainless 100 litre tank. It doesn't have a separate filler pipe though, so when I fill it I'm pouring fuel directly through the top of the tank. This makes getting it completely full and eliminating any exposed parts of the tank wall almost impossible. Therefore if condensation is a serious problem then I think I'd prolly be better of completely draining the tank dry and letting it breathe (perhaps by leaving the cap off?)
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Old 22 October 2013, 02:49   #4
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Never had a problem with portable tanks inbuilt one or keeping fuel for 6 month at a time! I have used fogging oil in the past but have not bothered for years with no ill effect, I do run my 15 hp 2 st dry when not using it but that's about it!
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Old 22 October 2013, 02:50   #5
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thats what i do with my 91litre plastic tank. completely empty with cap off - though i do this so i can clean out any debris from a seasons use of jerry cans.
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Old 22 October 2013, 02:58   #6
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I use fuel conditioner & fill my internal tanks to the brim. I use the auto winterise function on the Etecs. I've always done it & never had a problem. I can't say that I would have a problem if I didn't, if you follow. All my boats have had internal tanks & I've always brimmed them for winter.
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Old 22 October 2013, 03:00   #7
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Quote:
Originally Posted by Pikey Dave View Post
I use fuel conditioner & fill my internal tanks to the brim. I use the auto winterise function on the Etecs. I've always done it & never had a problem. I can't say that I would have a problem if I didn't, if you follow. All my boats have had internal tanks & I've always brimmed them for winter.
I use exactly the same proceedure.
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Old 22 October 2013, 07:22   #8
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Twin 70litre plastic tanks. Never had a problem yet in 6 years.
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Old 22 October 2013, 07:36   #9
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I've never experienced fuel quality issues after winter. I live in one of the wettest, dampest parts of these islands. The RIB was covered in winter and was in shade most of the day, so probably the tank never warmed up much to "breathe". Filling the tank has to be good. If you leave it open and empty, it will breathe and sweat. That will not dry out, IMO.

Fogging cylinders - I like Loco's solution - oil them up by running on muffs at low revs! Failing that, I can't think of a reason why you wouldn't fog them? I must do mine this week - looks like the WX has broken here for the winter. I use it as an opportunity to check my engine over, plug condition, HT leads, grease, general desalt under hood and dry before storing. It means if I don't need to service it, I should be good to go in the Spring.
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Old 22 October 2013, 07:44   #10
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I started servicing my outboards yesterday although I have not used them for the past month. When I took the cowls off the engines..I was a bit surprised to see water droplets on the metal tray beneath the engine heads and it would have been trapped under the cowl ?

When I put them away in my shed ..they were dry and it was warm weather. I can only assume it is condensation from the colder weather as the shed is dry. It shows to me that condensation can be a problem for my set up.

I always squirt fogging oil into the plug holes and turn the engine over a couple of times..it gives me peace of mind..and the one tin of fogging oil has lasted me a few years ..so its not an expensive peace of mind

I only have 25 ltr portable fuel tanks but if there is any fuel left at the end of the season..I empty it into 5ltr canisters to keep them full, Come the new season..the fuel tanks are filled with fresh fuel and once everything is running well..I start mixing the older fuel with the fresh stuff..never had carburetor problems yet..touch wood
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