g master

hey guys I wanted to know how to cunvert a air cooled engine into a water cooled engine.
I have a standerd weedwaker engine,but I dont want air cooled,but make it a water cooled engine.I'v seen how to do it some where but i cant remember where I saw it. if you guys could give me some website or info on how to do it
thanks

manyhobbies

My Feedback: (9)

I seen some info on this very subject just a few days ago. I would have to say it was on the internet somewhere, and I know it doesnt help to not have the direct link. But, I remember that the cylinder was turned down in a lathe. The cylinder was stationed in the lathe by a peice of turned down wood that was fitted to the inside of the cylinder. Then a cooling sleeve was machined to fit over the cylinder for water cooling. Sorry if this info didnt help but it was worth mentioning. I feel its just easier buying a engine made to run in a boat. Russ

onehot69stepside

I ran into it last week too. I was searchin up 1/5 cars with 2 strokes on here. Maybe try searching up "water cooling weedeater motor lathe wood" somthin along the lines of that.

VH-GMB

There's not a lot of info here, but it does touch on it a little (with pics)
http://www.modelpowerboat.com/Hopping-up_a_RC_Engine

g master

I looked up what you tould me to shearch for it did work,it came up with modlepowerboats.com. but I have some questions when I think of watercooling I think of water going though a tude coiled around an engine (like water cooling an electric motor)but to me it lookes like it water fills up the water jaket inside and surunds the top part of the engine with water and comes out the hole at the top. please correct me if i'm wrong.Dont get mad at me i'v never had a gas powered rc boat only electric,but that was 2 or 3 years ago.

goldendesign04

I am pretty sure your right, could be wrong if am somebody could prove it[:-]. The outer fins are shaved down tighter to the head but only so far down so you can use a bottom fin to attach a tube with just a hairs breath spacing from the OD of the now shave fins cap it off on top (dont forget a spot for the plug!) an add water fittings to allow the water to circulate through the chamber youve made sucking out some heat an coming out at a designated spot. Its pretty simple in theory but for a novice fabricator could be daunting hope this helps
-Wayne

martno1fan

hope this helps i think whh used to sell water jackets for homelites i seem to have read somewhere?.
[link]http://testfly.0catch.com/rc-model/rc-boats.html[/link]

[link]http://testfly.0catch.com/homelite/waterjacketinstall.html[/link]

OLD_SLOW and in the WAY

here are a couple of FastRat air cooled sikks converted to marine use