RC Marine Oliver Major.
10-01-2014, 03:02 PM
#1
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RC Marine Oliver Major.
Hi all,
does anyone know what is involved in converting an RC marine Oliver Major over to air cooled use?
I would imagine the flywheel, carby and water jacket goes but how hard will it be to get a drive washer and collet, air cooled jacket and venturi?
Thanks as I may have a chance at getting one of these.
does anyone know what is involved in converting an RC marine Oliver Major over to air cooled use?
I would imagine the flywheel, carby and water jacket goes but how hard will it be to get a drive washer and collet, air cooled jacket and venturi?
Thanks as I may have a chance at getting one of these.
10-01-2014, 03:44 PM
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Thanks Greg, I was more wondering (besides the acquisition of the parts) how to go about it - but as you say the author would be the best place to inquire.
10-01-2014, 09:11 PM
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Chris,
an r/c marine Oliver Major in good condition, would probably bring more on the collector market than a new Ridley JO 19 would cost.
Although a conversion from marine to c/l aircooled is no doubt possible it would be like taking a Ming Vase and giving it a coat of blue paint.
I understand that an Oliver Major is more of an r/c engine anyway. Rather heavy and not too powerful at c/l loads. Were as the JO 19, being designed to turn an 8x6, would be equally happy turning a 9 x 4.
Ray
an r/c marine Oliver Major in good condition, would probably bring more on the collector market than a new Ridley JO 19 would cost.
Although a conversion from marine to c/l aircooled is no doubt possible it would be like taking a Ming Vase and giving it a coat of blue paint.
I understand that an Oliver Major is more of an r/c engine anyway. Rather heavy and not too powerful at c/l loads. Were as the JO 19, being designed to turn an 8x6, would be equally happy turning a 9 x 4.
Ray
10-01-2014, 09:17 PM
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Chris,
an r/c marine Oliver Major in good condition, would probably bring more on the collector market than a new Ridley JO 19 would cost.
Although a conversion from marine to c/l aircooled is no doubt possible it would be like taking a Ming Vase and giving it a coat of blue paint.
I understand that an Oliver Major is more of an r/c engine anyway. Rather heavy and not too powerful at c/l loads. Were as the JO 19, being designed to turn an 8x6, would be equally happy turning a 9 x 4.
Ray
an r/c marine Oliver Major in good condition, would probably bring more on the collector market than a new Ridley JO 19 would cost.
Although a conversion from marine to c/l aircooled is no doubt possible it would be like taking a Ming Vase and giving it a coat of blue paint.
I understand that an Oliver Major is more of an r/c engine anyway. Rather heavy and not too powerful at c/l loads. Were as the JO 19, being designed to turn an 8x6, would be equally happy turning a 9 x 4.
Ray
So the JO 19 is a completely different beast?
10-01-2014, 09:59 PM
#6
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The Major (which is available from Tom Ridley) is a .21 or 3.5cc engine from the late 1970's IIRC.
It's not a stretched .15 it's a fresh design.
I way I understand it the JO .19 and the Parra T4 are inspired by the R320 which is a redesigned engine based on a modified R250 crankcase.
There's also a PAW .19 designed for the Vintage event which I suspect requires that a 8 x 6 prop be used. This makes the engines rather useful in the c/l sports engine market.
None of 'em are going to run with a 2/4 break though.
10-07-2014, 03:37 PM
#8
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