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OS S30 r/c marine engine info

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OS S30 r/c marine engine info

Old 01-13-2015, 10:33 PM
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scotty66
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Default OS S30 r/c marine engine info

I have a 65-68 OS S30 r/c marine engine I purchased quite awhile back & it seems to have never been run .
It has no starter belt marks on the flywheel & it has very nice compression.

Now to the point ...

Does anyone have a manual They can copy & send out to me on this engine ?
It has two barbed connectors on the back of the crank case & the pressure port for the fuel is on the muffler ,so I am not sure what the connectors are for unless they are connected to a cooling coil to keep the bottom end cool.
I don't want to take it apart to find out since gaskets are more than likely not available.

Thanks
Scott
Old 01-15-2015, 01:43 PM
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scotty66
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Ok . I figured out the barbs on the back of crank case are for cooling . I took the cover off to find out .


I still would like a copy of the manual for it if anyone has one . Thanks
Old 01-17-2015, 01:58 PM
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Ron Olson
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This is only as close as I could get for you. http://www.osengines.com/parts/discontinued.html
Old 01-17-2015, 02:04 PM
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I have already been there with no luck ,but I appreciate your reply. I also called OS & they had nothing .
Thanks
Old 01-17-2015, 03:56 PM
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Post #5 has a pdf of the manual for the OS S30 R/C, it is the airplane version of your engine:
http://www.rcgroups.com/forums/showp...36&postcount=5
http://www.rcgroups.com/forums/showt...ight=OS+30+R+C
Old 01-18-2015, 01:53 PM
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Thanks

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