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Life of a converted engine

Old 02-22-2015, 04:58 PM
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LuizFernandes
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Question Life of a converted engine

Hello Guys!

I have a OS 200 FS running with CDI on glow fuel. I'm planning to convert it to gas with a CH Ignition carburetor kit.
But I'm concerned with the engine life running with less oil,mainly with the rod without bearing.
What do you Guys have to say about it?

Thanks!

Luiz
Old 02-23-2015, 06:13 AM
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av8tor1977
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When a glow engine is converted to gasoline, you really should use the same amount of oil as was in the glow fuel unless the rods and crank are converted to roller bearings. Some are using good synthetic oils at lower ratios, but it is risky. One lean run could ruin the engine.

Gasoline engines also run hotter than glow engines, so beware of that.

AV8TOR
Old 02-23-2015, 06:41 AM
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LuizFernandes
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Thanks!

do you think that the Walbro will tune using a fuel with 16% / 18% of oil?
Old 02-23-2015, 08:48 AM
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av8tor1977
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Yes, that should not be a problem unless you are using a very thick oil.

AV8TOR
Old 02-25-2015, 10:17 AM
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Originally Posted by LuizFernandes
Thanks!

do you think that the Walbro will tune using a fuel with 16% / 18% of oil?
You might consider using the purple (mylar?) pump diaphragm instead of the tan (Kevlar?) one. The tan one is stiffer and does not pump as much fuel as the purple one. Wait, maybe you need the tan one to pump the more viscous fuel mix. Anyway, the idea is that you have two choices, just don't use the black one.

Sincerely, Richard
Zenoah G23 ECDI
Allpina A330
Echo 22 CC
Ryobi 31cc
O&R Industrial 1 HP
Saito FA-180 to be converted to CDI and gasoline
Various Poulan, Weedeater, and Homelite

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