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will it work in water?
Mr Whippy - 7/4/08 at 03:01 PM

Very unlikely, but has anyone run an air-cooled VW flat four in water? I'm wondering if it gets overcooled or if it's better to keep it dry. Thing is I think the turbo fan might keep one side of the cylinder blasted clear of the water but not the underneath so could end up with a serious temperature gradient in the cylinders causing something nasty to happen

tegwin - 7/4/08 at 03:05 PM

I dont even know what you are trying to do

blakep82 - 7/4/08 at 03:07 PM

neither do i, but sounds dangerously exciting.

are you trying to build some sort of submarine contraption?!

Mr Whippy - 7/4/08 at 03:08 PM

. Rescued attachment floatingbeetle.jpg
Rescued attachment floatingbeetle.jpg

Mr Whippy - 7/4/08 at 03:09 PM

. Rescued attachment v04green.jpg
Rescued attachment v04green.jpg

iscmatt - 7/4/08 at 03:22 PM

don't forget your snorkel!!

Mark Allanson - 7/4/08 at 03:52 PM

quote:
Originally posted by Mr Whippy
.



....was that the sound of lots of multicoloured smarties hitting the floor?

snapper - 7/4/08 at 06:05 PM

Just splashing about will be fine, if you get deep enough long enough to cause a problem you won't need a buggy you'll need a boat.

blakep82 - 7/4/08 at 06:08 PM

seal up under the engine (well, as much as you can anyway) somehow and build some air ducting from the roof and out the boot lid? maybe a nice big fan to help get rid of the hot air?

[Edited on 7/4/08 by blakep82]

jollygreengiant - 7/4/08 at 06:11 PM

Because water is more viscously dynamic than air, the engine would undoubtedly suffer cooling problems running in water rather than air.

chrisg - 7/4/08 at 06:13 PM

Psychiatric help is free these days you know?

Cheers

Chris

Confused but excited. - 7/4/08 at 06:18 PM

quote:
Originally posted by jollygreengiant
Because water is more viscously dynamic than air, the engine would undoubtedly suffer cooling problems running in water rather than air.


Then why is the block on my X-flow full of water connected to a radiator, instead of being empty and connected to a hair drier on cold?

[Edited on 7/4/08 by Confused but excited.]

paulf - 7/4/08 at 07:17 PM

If you could manage to keep the ignition leads dry then it might run, assuming the crankcase seals etc keep water out of the oil.The problem may be the fan would not like being immersed in water and would probably destroy itself.
Maybe the fan could be disengaged when in water using a clutch from an aircon unit assuming there was then a good flow of water over the fins.
Paul.

iank - 7/4/08 at 10:53 PM

Well they managed to get it working on the Schwimmwagens

http://members.aol.com/brimiljeep/WebPages/GermanKuebelwagenSchwimmwagenPage.html

jollygreengiant - 8/4/08 at 12:49 AM

quote:
Originally posted by Confused but excited.
quote:
Originally posted by jollygreengiant
Because water is more viscously dynamic than air, the engine would undoubtedly suffer cooling problems running in water rather than air.


Then why is the block on my X-flow full of water connected to a radiator, instead of being empty and connected to a hair drier on cold?

[Edited on 7/4/08 by Confused but excited.]


Because your Radiator has air flowing over the outer surfaces of it, Your radiator core and engine block have water flowing through them and that is the way that it was designed to work. You might (if you take your block apart) also notice that the inner faces (where the water flows) are smooth (apart from corrosion deposit) and have no cooling fins on them.