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| Robinson Hot Air Engine. |
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| sbwhart:
I've seen that engine all over the country, I think the guys must spend all summer traveling around from show to show towing it behind his camper. What a great way to spend summer. :D :D :D :D :D :D Stew |
| Stilldrillin:
While I can't get out there, to do something. I guess a bit of forward planning won't go amiss...... ::) What's the green coloured additive, the stationary engine lads use in their pumps, at steam fairs etc? :scratch: The bluecol additive rusted overnight! :bang: Essentially, I need something to add to water, so it won't rust the engine internals. I can only think of soluble oil. David D |
| Bluechip:
--- Quote from: Stilldrillin on December 10, 2010, 12:35:30 PM --- What's the green coloured additive, the stationary engine lads use in their pumps, at steam fairs etc? :scratch: --- End quote --- Chartreuse ??? :lol: Can't see why Bluecol would have any effect. Anti-freeze is Ethylene Glycol AFAIK. The rust will be caused by air in the water. Tried boiling it and letting it stand before use? Vaguely seem to remember some demonstration with iron in distilled water, no rust 'cos no air ... I think Glycerol itself is water miscible .. ? Why not slap some paint on the inside? Cylinder block paint will stand a fair bit of heat, as will Bondaprimer, without going wild and using Sperex or the like . Does the rust afflicted part come in contact with the heat source .. ? Can't imagine what it looks like in detail, so I don't know if paint is a sensible solution. Dave BC |
| Stilldrillin:
Dave. I intend to paint inside and out with hammerite. But, there's always some water left in nooks & crannies, after running. The Blucol top up stuff seemed very "wet". Strange stuff...... :scratch: Hmmmm....... David D |
| Dean W:
A good brand of antifreeze should work great. A kind with a rust inhibitor like Prestone. A car engine will run for years with that stuff in the block, and very little rust will form. You mix it 50/50 with water. |
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