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| Gas Yamaha Gas Yamaha Golf Cars; G1 through "The Drive" and U-Max Utility Vehicles |
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08-03-2021, 03:46 PM
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#1 |
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Not Yet Wild
Join Date: Aug 2021
Posts: 1
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1993 Yamaha G5 Oil problem
One of the pushrods popped out and when I went to put it back in place and adjust the valves I noticed the bracket that holds the rockers in place was badly worn. I ordered a new one so no problem there.
What worries me is the lack of oil under the valve cover, there seems to be none and I'm thinking that is what caused the bracket to wear out in the first place. This is a one lung 4 cycle motor but I don't know how the oil pump works on these engines. Is there an actual oil pump or does the oil just get pumped up to the top by a slinger in the crankcase? Is vacuum involved in the oiling process? Any help would be appreciated. |
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08-04-2021, 07:41 AM
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#2 |
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maintaining a low profile
 Join Date: Oct 2009
Location: SW Virginia USA
Posts: 6,316
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Re: 1993 Yamaha G5 Oil problem
No oil pump, just the slinger...
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08-05-2021, 08:58 PM
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#3 |
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VC 460 CLONE GONE WILD
Join Date: Oct 2014
Location: Ray BY The Bay NJ
Posts: 10,642
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Re: 1993 Yamaha G5 Oil problem
Check to see if the oil supply line is blocked. This hose carries the oil from the slinger up to the rocker arms.
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08-06-2021, 06:32 AM
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#4 |
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Gone Crazy
Join Date: Jan 2007
Location: Chesterfield, Va
Posts: 6,021
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Re: 1993 Yamaha G5 Oil problem
It is on the back of the motor and I believe there is a check valve half way up the tube.
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